Minggu, 28 Maret 2010

Efficiency and Equity in European Education and Training Systems

Analytical Report for the European Commission
prepared by the
European Expert Network on Economics of Education (EENEE)
to accompany the
Communication and Staff Working Paper by the European Commission
under the same title.
Authors: Ludger Wößmann and Gabriela Schütz
This version: 26. 4. 2006
1. Contribution of economic and social sciences of education............................................. 1
1.1 Economic and other social sciences of education.......................................................... 1
1.2 Human and social capital theories................................................................................. 1
1.3 Efficient and equitable education and training policies................................................. 2
2. Economic and social impact of education and training ................................................... 4
2.1 Effects for the individual ................................................................................................ 4
2.2 Monetary effects for the economy................................................................................... 6
2.3 Non-monetary effects for society.................................................................................... 8
3. Efficiency and equity aspects of education and training systems ................................... 9
3.1 The life cycle of education: Efficiency and equity........................................................ 10
3.2 Early childhood education: Efficiency and equity ....................................................... 13
3.3 Schools: Efficiency and equity...................................................................................... 15
3.4 Initial vocational education and training: Efficiency and equity................................. 21
3.5 Higher education: Efficiency and equity...................................................................... 24
3.6 Continuing training and adult learning: Efficiency and equity ................................... 27
4. Conclusion .......................................................................................................................... 30
References ............................................................................................................................... 32
Note: The general assessment of this report has been endorsed by all members of the EENEE network (see
www.education-economics.org). The authors would like to thank David-Pascal Dion for extensive suggestions
and discussions of structure and content, as well as the fellow EENEE members, in particular Giorgio Brunello,
Antonio Ciccone, Torberg Falch, Steve Machin, Daniel Munich, George Psacharopoulos and the external
advisors Rick Hanushek and Stefan Wolter, and participants at the Munich workshop of the European
Commission on the SWP and this report, in particular Daniele Checchi, Ramon Flecha, Ides Nicaise and Greg
Wurzburg, for their useful discussions and extensive comments.
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The aim of this analytical report is to provide an economic and social analysis of efficiency
and equity in European education and training systems, based on a review of the relevant
scientific literature. Section 1 gives a brief introduction on the contribution of economic and
social sciences of education to the topic. Section 2 surveys the evidence on economic and
social impact of education and training. Section 3 provides a detailed analysis of efficiency
and equity aspects of education and training systems in Europe, focusing on
complementarities and trade-offs between efficiency and equity over the life cycle.
1. Contribution of economic and social sciences of education
1.1 Economic and other social sciences of education
In order to go beyond statistical description to an economic and social analysis of efficiency
and equity in European education and training systems, a scientific approach is needed that
tries to determine cause and consequence and give quantitative results on the importance of
different relationships. The scientific analysis of education processes is the topic of several
social sciences. Given that the topics of this study are efficiency and equity, it seems
reasonable that the economics of education – as one discipline in the social sciences – should
take a lead focus in this analysis. But obviously, the process of education encompasses many
non-economic aspects, so that the analysis will draw on the expertise of other disciplines in
the social sciences, such as pedagogy, sociology, psychology and political science, which can
add valuable insights into specific aspects of the topic. An interdisciplinary perspective that
draws on both economic and other social sciences seems best suited to address the
multidisciplinary issues involved in the efficiency and equity of education and training
systems.
Also, modern economics must not be understood as the mere analysis of economies and
pecuniary quantities, but rather as the economic methodological approach to human
behaviour, which is a general method of analysis of individual rational behaviour (e.g., Lazear
2000). In this sense, the economics of education provides a valuable means to understand the
behaviour of the people involved in the education process.
Ultimately, the task of any scientific analysis of educational efficiency and equity is to try to
detect causal relationships which apply to policy questions of interest. In this applied task, the
questions are mostly empirical. Because in the real world, many causal interactions operate at
the same time, any well-founded scientific analysis will have to take this multidimensionality
into account by applying multivariate methods to the task at hand and by building proper
research designs that allow for rigorous policy evaluations. Given the focus on European
education and training systems, the following analyses will draw heavily on international
comparisons between the different European systems, in order to learn from each other how
efficient and equitable education and training systems should be designed.
1.2 Human and social capital theories
A key concept in the economics of education is the notion of human capital. The main idea of
the theory of human capital is that each person’s education is an investment in her human
capital which allows her to contribute to her society in a productive way. As any investment,
the investment in human capital requires initial costs, in terms of direct spending and the
opportunity costs of students’ time, which are taken on in the hope that the investment will
create future benefits in terms of higher productivity, higher wages, lower risk of
unemployment, and so on. As will be discussed in Section 2, such benefits will take the form
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of both monetary and non-monetary impacts, and they will accrue to both individuals and the
society at large. In addition to human capital theories, which have been developed mostly in
the 1960s and 1970s with crucial contributions by Theodore W. Schultz (e.g., 1961), Gary S.
Becker (e.g., 1964) and Jacob Mincer (e.g., 1974) and which stress the central role of
education as an investment in human capital, economists also emphasise the role of education
as a signalling and screening device (cf. Brown and Sessions 2004).
In addition, education also plays a crucial role in theories of social capital. These theories
stress the importance of mutual trust, cohesion, social norms, civic mindedness and other
connections among individuals for the well-being of societies (cf. the seminal contributions
by Pierre Bourdieu 1986, James S. Coleman 1988 and Robert D. Putnam 1993). While
applied research in this direction is still in its infancy, it is regularly emphasised that
education can act as a crucial means to form the traits of social capital that may help to
increase the standard of societal well-being (cf. Temple 2001 and de la Fuente and Ciccone
2002 for overviews). Thus, recent evidence suggests that education exerts causal effects on
such outcomes as crime and civic engagement, among others (cf. Section 2.3 below).
Together, theories of human and social capital stress the importance of education for the longrun
economic and social well-being of individuals and societies. This makes an analysis of
how education can be supplied in an efficient and equitable way a research topic of utmost
economic and societal importance.
1.3 Efficient and equitable education and training policies
The goals of education policy are usually two-fold, encompassing both goals of efficient
allocation and goals of equitable distribution. The extent to which each of these goals should
be pursued is a matter of political choice and as such beyond scientific evaluation. What
scientific analysis can deliver, though, is an evaluation of how either may or may not be
achieved, and of the relationship between the two goals. Of course, goals of efficiency and
equity are not restricted to education policy. However, a combined policy perspective that
would also address other policies such as social policies, labour market policies and
immigration policies and determine joined policy solutions lies beyond the scope of the
current analysis, which explicitly focuses on education and training policies.
The concept of efficiency relates the outcome of a process to its input. A system is said to be
efficient if a maximum output is obtained from given input, or if a given output is obtained
with minimum input. Efficiency has thus to do with the ratio between output and input: How
much do we get for what we put into the system? The analysis of efficiency thus deals with a
comparison of costs and benefits.
The output may either be measured as a goal within the education and training system, such
as achievement scores or completion rates, or as a goal outside the education and training
system, such as employment probabilities or earnings returns on the labour market. There are
two main aspects of an efficient resource use. First, efficiency is about allocating efficiently
between different kinds of resources – e.g., between teachers and blackboards, or between
more teachers per student and better-qualified teachers – that is, about choosing the most
efficient input mix (allocative efficiency). Second, efficiency is also about using each
resource efficiently, that is, making the best use of each given input (technical efficiency).
The assessment of efficiency in education and training has both an external aspect, where
investments in education are compared to alternative investments outside the education
system, and an internal aspect, which refers to the internal functioning of the education and
training system.
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The concept of equity is more evasive than the concept of efficiency. This has largely to do
with the general evasiveness of clear scientific definitions of issues of fairness and justice. It
seems, though, that a rather broad consensus among social scientists has evolved around some
variant of an equity concept that is close to the definition of equality of opportunity proposed
by Roemer (1998; cf. Betts and Roemer 2006). The central idea of this concept is that
inequality should be tolerated only if it is due to persons’ differences in levels of effort, but
not if it is due to circumstances which are beyond a person’s control. Thus, perfect
achievement of equity would demand that a students’ educational performance does not
depend on her race, gender or family background. At the same time, equity will be achieved
even if there is inequality in educational outcomes that is due to the fact that different persons,
e.g. of the same race, choose to put different levels of effort into their learning. In other
words, a person’s expected educational outcome should be a function only of her effort, but
not of her circumstances. The equity objective can again be expressed in terms of an outcome
within the education and training system, such as test scores, or in terms of an outside
outcome such as labour-market outcomes. Also, the assessment of equity has again an
external aspect, asking whether a specific equity goal can be reached better by investments in
education or by alternative uses of the money, and an internal aspect, asking how a given set
of resources in the education and training system can be used in the most equitable way.
The concept of equity understood in terms of equality of opportunity would call for an equal
access to education and training programmes independent of students’ circumstances, as well
as for an equal treatment of all students independent of their circumstances. At the same time,
this concept of equity would not necessarily call for a strict equality of educational outcomes
in the sense of a perfect sameness or egalitarianism, because people are allowed to choose to
differ according to their self-determined effort. This report focuses mainly on equity along the
dimension of socio-economic background; needless to say, issues of equity along other
dimensions such as race, culture or immigration also need to be better explored in the future.
It should be stressed that anybody interested in equity will also want to have the equity goal
achieved in an efficient way – that is, at the lowest cost. If a certain extent of remediation of
inequity would not be achieved at the lowest possible cost, this would be a waste of resources,
and one could achieve an even higher extent of remediation if resources were used efficiently
in a pursuit of the equity goal.
But beyond that, the relationship between goals of efficiency and equity in the education and
training system may take different forms. In some cases, efficiency and equity goals may be
independent from (orthogonal to) one another. In other cases, there may be trade-offs in the
extent to which the two goals can be obtained. And in still other cases, there may be a
complementarity (synergy) in the achievement of both efficiency and equity. Thus, certain
policies may bring the education and training system closer to an efficient system, without
having any impact on equity. Other policies may be highly equitable without having an
impact on efficiency. Other policies may advance both efficiency and equity in a
complementary way. And still other policies may show a trade-off by either advancing
efficiency at the detriment of equity or by advancing equity at the detriment of efficiency.
It will be a key focus of this study to highlight the presence or absence of trade-offs and
complementarities in the design and functioning of education and training systems. It will be
seen that efficient policies need not be inequitable, and equitable policies need not be
inefficient. Countries do not necessarily have to choose between efficiency and equity. There
are ways to evade strong trade-offs between efficiency and equity, while current attempts to
reach the one or the other sometimes turn out to be both inefficient and inequitable.
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2. Economic and social impact of education and training
Since the seminal contributions of Schultz, Becker and Mincer, the economics of education
has gathered vast evidence on the contribution of education to the economic and social wellbeing
of individuals and nations. Particularly in recent years, there has been a strong upsurge
of interest in the economics of education, especially amongst applied economists. Both at the
individual level and at the level of society, there is now ample research showing substantial
positive effects of education not only in terms of monetary benefits but also in terms of nonmonetary
benefits. This section summarizes the main findings with respect to the effects of
education and training both for the individual and for society as a whole. The literature is
much broader on the effects of education than of training, both because it is difficult to
disentangle the effects of the two and because training is not unambiguously defined, whereas
one can easily distinguish years of schooling or highest educational degree obtained.
Moreover, in the case of training, it is especially hard to identify true exogenous variation in
participation, so that estimating the effects of training faces particularly strongly the difficulty
of accounting for factors correlated with training that at the same time affect the outcomes of
interest.
2.1 Effects for the individual
a) Monetary (market) effects:
At the individual level, the most obvious effects of education and training are those on wages
and earnings. The substantial empirical evidence both with respect to the existence and to the
size of the returns to education is overwhelming (cf. the surveys by Card 1999 and Harmon et
al. 2003). Schooling raises the individual market productivity which is rewarded in the labour
market in terms of higher earnings or wages. The positive association between education and
individual earnings in the labour market is probably one of the most robust findings in all of
empirical economics. For example, Harmon et al. (2001) find that on average across European
countries, each additional year of education is associated with more than an eight percent
increase in wages (cf. also de la Fuente 2003). Furthermore, a lot of recent research attention
has focused on the extent to which these associations depict causal relationships, suggesting
that the regression estimates seem to be close to the causal effect of education on earnings (cf.
the discussions in Card 1999 and Harmon et al. 2003).
Micro data analyses also provide evidence that cognitive test scores have strong positive
effects on individual labour-market performance (cf. Neal and Johnson 1996; OECD 2000;
McIntosh and Vignoles 2001; Currie and Thomas 2001; and the references in the latter).
These qualitative measures of education yield even higher earnings returns than measures of
educational quantity (Boissiere et al. 1985; Bishop 1989, 1992), and earnings returns to
educational quality seem to have been increasing over time (Murnane et al. 1995). Moreover,
while returns to educational quantity decrease with the time that employers can observe
individuals in the labour market, returns to cognitive achievement increase (Altonji and
Pierret 2001). Even among school dropouts, i.e. students with the lowest educational
attainment, there are substantial earnings returns to basic cognitive skills (Tyler et al. 2000).
The education of an employee not only affects her wages, but also her non-wage remuneration
(Duncan 1976; Lucas 1977). Such non-wage labour market remuneration can take the form of
improved working conditions or fringe benefits such as insurance provided by the employer, a
company car and childcare, to name a few. Micro evidence suggests that more educated
people are more successful in securing such benefits for themselves than are people with
lower levels of education.
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Highly educated people are also more likely to participate in the labour market and have
better chances to be employed. In the European Union, the unemployment rate of persons
with only primary education is almost twice as high as the employment rate of persons with
upper secondary education (OECD 2005a). The risk of becoming unemployed is considerably
lower for the highly educated. Similarly, higher scores on literacy tests are associated with
substantially higher labour force participation and lower unemployment rates (OECD 2000;
McIntosh and Vignoles 2001).
While the evidence on labour-market returns to training is more mixed than for education (cf.
the review by Cohn and Addison 1998), there is also strong evidence for a positive
association between training and individual earnings (see Chapter 4 of Bassanini et al. 2005
for a survey of evidence from Europe and North America). Across Europe, private returns to
training seem to be especially high in those countries where training incidence is low
(Bassanini et al. 2005). However, it has to be kept in mind that it is particularly hard to give a
causal interpretation of these associations in the case of training, because the literature on
training has not reached a point where possibly confounding effects of other factors can be
properly kept apart from the effects of training. Some studies that try to go in this direction
find much lower returns to training, often not statistically significantly different from zero
(e.g., Leuven and Oosterbeek 2004).
In addition to affecting labour-market outcomes, education also affects decisions related to
expenditure and savings. A person’s rate of saving is significantly correlated to her individual
level of education (e.g. Bernheim and Scholz 1993). There is also some evidence that higher
schooling is associated with higher saving rates even after controlling for income (Solmon
1975). Moreover, the adoption of consumer education policies and the inclusion of financial
topics in the curricula of high schools in a number of states in the United States were shown
to have long-term behavioural effects. They significantly raised the rate at which individuals
save and accumulate wealth once exposed students reached adulthood (Bernheim et al. 2001).
b) Non-monetary (non-market) effects:
Education affects the well-being of individuals not only via monetary effects. There is also
considerable evidence of non-market benefits of education (cf. the surveys by Haveman and
Wolfe 1984; Wolfe and Zuvekas 1995; Wolfe and Haveman 2000; McMahon 2004).
Both life-satisfaction and happiness are related to education. It can reasonably be argued that
an atmosphere of trust contributes to life-satisfaction. There is evidence for the fact that the
extent to which someone trusts in other people is related to her educational level (Putnam and
Helliwell 1999). Data for Great Britain and the United States show that a person’s well-being
rises with her level of education. This effect is found to be independent of the level of income
(Blanchflower and Oswald 2004). Similarly, job-satisfaction is found to be highest among the
highly educated (Clark 1996). Receiving training from one’s employer also enhances job
satisfaction.
Empirical evidence on the effects of education on health is overwhelming (cf. the survey by
Grossman 2000). Education is consistently shown to have considerable effects on the general
health status of an individual. There are several channels through which education can be
assumed to make an impact on health and life expectancy. First, schooling may affect the
decision to work in hazardous employments. Moreover, there is evidence that education is
associated with better health behaviour. Lifestyle, diet and exercise as well as smoking
behaviour seem to be related to education (e.g., Kenkel 1991). Better health also translates
into higher wages and earnings, but apart from this monetary aspect, it contributes to a
person’s general well-being in terms of reduced pain, lower expenditures on medical care and
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less time spent to treat various illnesses. A person’s life expectancy also increases with her
education (Feldman et al. 1989).
The educational attainment of parents has strong effects on the well-being of their children.
Education of the mother, for example, affects a child’s weight at birth (Currie and Moretti
2003). Important pathways for this effect of mother’s education on infant health are the use of
prenatal care and smoking behaviour, among others. Similarly, the general status of health of
children is positively influenced by the education of their parents (e.g., Lam and Duryea
1999). Strong effects of parents’ education are also found on the level of education eventually
attained and on the cognitive development of children (Currie and Moretti 2003). There is
consistent evidence that for daughters, the probability of teenage motherhood and the
probability of giving birth out of wedlock are decreasing with the educational level of their
mothers (e.g., An et al. 1993; Lam and Duryea 1999). Moreover, there is some evidence that
the attainment of the desired number of children and the efficiency of contraceptives is related
to schooling (e.g., Lam and Duryea 1999).
Education seems to enable individuals to choose more efficiently in a variety of situations.
Some studies have shown that there is a positive relationship between the efficiency of
choices made by consumers and their level of education (cf. the studies cited in Wolfe and
Haveman 2000). Moreover, studies of assortative mating suggest that marital choices improve
with schooling (Becker et al. 1977). Divorce rates are higher among less educated individuals
(Martin 2004; White and Rogers 2000), possibly related to reduced stability due to their
earlier timing of marriages and birth of children.
2.2 Monetary effects for the economy
There are three mechanisms through which education can impact on economic growth. First,
education increases the human capital inherent in the labour force, which increases labour
productivity and thus transitional growth towards a higher equilibrium level of output
(augmented neoclassical growth theories, cf. Mankiw et al. 1992). Second, education can
increase the innovative power of an economy, and the new knowledge on new technologies,
products and processes promotes growth (theories of endogenous growth, cf., e.g., Romer
1990). Third, education facilitates the diffusion and transmission of knowledge which is
needed to understand and process new information and to successfully implement new
technologies which also leads to economic growth (cf., e.g., Nelson and Phelps 1966).
Early analyses of the determinants of economic growth, which disregarded human capital, left
researchers with a large unexplained residual. However, macroeconomic theories soon came
to include human capital into their models. Empirically, the inclusion of human capital into
growth accounting increased the extent to which researchers could explain economic growth.
Most research focused on the effects of quantitative measures of education on economic
growth, where the most elaborate recent evidence shows that a statistically significant
relationship indeed exists (e.g., Barro 1991; Mankiw et al. 1992; Temple 1999, 2001; Krueger
and Lindahl 2001; de la Fuente and Domenech 2006; Vandenbussche et al. 2004; Aghion et
al. 2005; Ciccone and Papaioannou 2005). While the evidence on the relative importance of
the three mechanisms is mixed, studies often find that education is important both as an
investment in human capital and in facilitating research and development and the diffusion of
technologies.
For example, de la Fuente (2003) estimates that each additional year of average educational
attainment raises macroeconomic productivity by a direct 6.2 percentage points in the average
EU country and by a further 3.1 percentage points in the long run through its contribution to
faster technological progress. In addition, there is now a large strand of literature revealing
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that qualitative measures of education based on student achievement test scores are even
stronger predictors of national growth (Hanushek and Kimko 2000; Barro 2001; Wößmann
2002, 2003a; Pritchett 2006; Ciccone and Papaioannou 2005). Obviously, the macroeconomic
effects of human capital also depend on other complementary growth-enhancing policies and
institutions, so that the effects may not be positive in countries where the institutional
framework encourages rent-seeking activities rather than productive uses of acquired human
capital (cf. Pritchett 2006).
Whenever individuals decide on the amount of education to acquire, they tend to take only
their private benefits into account. Quite often, they do not even realise their own benefits
accurately. It is possible that many individuals are not aware of many of the individual
benefits listed above. However, education may inhibit externalities which have to be taken
into account when calculating the economy-wide returns to education. These externalities are
not incorporated in the private market returns to education, but are part of the social rates of
return to education. It can be argued that a large part of the externalities operates through
intervening variables and are long delayed (cf. McMahon 2004). A wide interpretation of the
social effects of education takes a dynamic view by acknowledging feedback effects of
education on economic growth through other variables. Some estimates put the externality
component in the social return to education at up to 14 percent, although the estimated
externalities shrink substantially or even disappear completely when a narrower interpretation
is used by controlling for differences in technology (cf. Heckman and Klenow 1997; Topel
1999; Psacharopoulos and Patrinos 2004; McMahon 2004).
There exists a multiplicity of intermediating factors through which education can affect
growth. Technological change has already been mentioned as one of them, but there are also
less obvious factors like democratisation and political stability that appear to affect growth.
By increasing income and giving rise to a larger middle class, education leads to an increasing
demand for political participation, and promotes democratisation and political stability. Even
though it is not clear whether democratisation contributes to economic growth,
democratisation is consistently found to promote political stability which in turn contributes
to economic growth (Barro and Sala-i-Martin 1995; McMahon 2002; Oliva and Rivera Batiz
2002). Thus, education not only directly influences economic growth. There is also an indirect
effect of education on growth via democratisation and political stability.
Among the externalities from education are also the external effects of human capital
employed in production on the productivity of other workers. This externality arises if less
educated workers become more productive because they are working together with more
educated workers. Social interactions among neighbouring workers create learning
opportunities and lead to human-capital spillovers. Yet, the empirical evidence for the
existence of spillovers from learning is ambiguous. Moretti (2004) and the studies cited
therein find evidence in favour of spillovers, whereas Acemoglu and Angrist (2000) and
Ciccone and Peri (2006) find no evidence for this kind of spillovers.
From a fiscal point of view, a large impact of education and training on the society consists in
their effect on taxes. In the same way as education and training raise the earnings of an
individual, they also tend to raise the taxes paid by this individual. These tax payments are
part of the government’s budget and ideally benefit the society at large.
Education seems to be associated with social cohesion and lower inequality. Beyond being a
non-monetary benefit for society, there is also some reason to attribute a monetary benefit to
lower inequality as well. Recent research indicates that most of the cross-country variation in
earnings inequality can be assigned to cross-country variation in skill dispersion (Nickell
2004). Therefore, the distribution of educational attainment is of crucial importance in
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explaining the dispersion of both earnings and poverty. This has an economic dimension apart
from the social aspect, since less people in poverty reduces the necessary transfer payments to
alleviate the burden of poverty within the population. More educated people are not only less
likely to be eligible for welfare transfers. Several studies also provide evidence that people
with more education are less likely to draw on these transfers even if they are eligible (An et
al. 1993; Kiefer 1985).
2.3 Non-monetary effects for society
There is also increasing evidence of non-market external returns to education (cf. the surveys
by Haveman and Wolfe 1984; Wolfe and Zuvekas 1995; Wolfe and Haveman 2000;
McMahon 2004).
Perhaps the most important fields of society that are influenced by education are the process
of democratisation, the development of civic institutions and human rights, and political
stability. The theories describing the mechanisms of these processes draw from political
science. Education and higher per capita income play an important role in the democratisation
process since they give rise to a growing demand for political participation. While
authoritarian dictatorial regimes profit from an illiterate and poor population, the development
of civic institutions, rule of law and the role of opposition require a literate population.
Investment in secondary education has been found to be one of the determinants of
democratisation in cross-country data (cf. McMahon 2004).
One channel through which education affects democratisation is through civic participation,
civic knowledge and attitudes. Education leads to an increased demand for civic participation
within the population. Empirical evidence suggests that educational attainment has large
effects on both voter participation and support of free speech. Moreover, it increases the
frequency of newspaper readership and thereby the quality of civic knowledge (Dee 2004).
Additional evidence from the United Kingdom and the United States reveals that more
educated citizens follow public affairs and politics more closely and have more information
on candidates and campaigns (Milligan et al. 2004). Human rights have also been found to
increase significantly with democratisation (cf. McMahon 2002, 2004).
Empirical evidence from cross-country data reveals that higher secondary enrolment rates are
significantly related to lower homicide rates and property crime (cf. McMahon 2002, 2004).
Microeconometric analysis also shows that the probability of committing crime is
significantly reduced by schooling (Lochner and Moretti 2004). Effects of education are
found to be particularly large on murder, assault and vehicle theft. Both an indirect and a
direct effect of education on crime can be supposed. First, education leads to less urban
poverty and inequality and therefore to less crime. Second, schooling induces individuals to
commit less crime. It increases the return to work and the opportunity costs of criminal
activities. In the case of incarceration due to criminal behaviour the individual has to bear
opportunity costs in terms of foregone earnings. These costs are higher the more educated this
person is. Moreover, education might affect preferences like patience and risk aversion and
therefore reduce criminal activity.
Additionally, education also seems to promote social cohesion. Descriptive evidence suggests
that schooling is positively associated with reduced alienation and social inequalities (cf.
McMahon 2004). In cross-country data, extending access to secondary education to a higher
percentage of the population especially in poor rural areas significantly reduces rural poverty.
Absolute poverty is reduced by increasing economic growth and secondary education (cf.
McMahon 2002, 2004). Education also has the potential of reducing inequality in the income
distribution. But whether it reduces inequality depends crucially on the distribution of
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educational resources within the population. Inequality in schooling has been found to be
significantly related to the percentage of people at the end of the income distribution
(Psacharopoulos 1977; Ehrlich 1975).
Social cohesion is also promoted by an increasing awareness of the responsibility that every
single person has for the society. More educated people contribute more volunteer time and
more financial resources to community service and charity. A US study found that even
within income levels, the share of people reporting to volunteer both time and money was
considerably larger among people with some post-secondary education compared to people
with lower education (NCES 1995).
Both own education and the average education level within the population have been found to
be positively associated with respondents’ reported measure of social trust. More educated
people seem to trust more in others, and people trust each other more in regions with higher
average education (Putnam and Helliwell 1999).
Better public health is another social externality of education. It is often argued that education
and health are the two most important sources of human capital and that they complement
each other. Education is not only connected to own health and the health of ones’ children. It
also reduces the spread of contagious diseases within the whole population (e.g., Grossman
2006).
The effects of education on the environment are almost entirely indirect and operate through
the reduction of poverty and population growth rates. Reduced poverty and population growth
rates are associated with less water pollution (cf. McMahon 2002, 2004). Similarly, education
has an indirect effect on air pollution through its effects on population growth,
democratisation and economic growth (cf. McMahon 2004). In countries with high population
growth rates and high poverty rates, forests are cleared for agriculture, heating and cooking
but also for the export of timber. In cross-country data, higher population growth is
significantly associated with the increase in deforestation. Investments in education seem to
reduce the rate with which forests are destroyed by generating slower population growth (cf.
McMahon 2004).
In sum, there appears to be ample evidence in support of the existence of non-market effects
of education for both individuals and the society. Still, it should be borne in mind that some of
the underlying evidence may be biased because of omitted variables and problems of
simultaneity, so that the extent to which correlations mean causation is not validated beyond
doubt.
3. Efficiency and equity aspects of education and training systems
Relative to the well-established evidence on the economic and social impact of education and
training presented in the preceding section, many parts of the literature on efficiency and
equity in education and training are not as well-developed. Ultimately, profound countryspecific
empirical assessments would be required to evaluate the specific efficiency and
equity consequences of different policies. Still, a unifying perspective and many specific
features are evolving into a broad consensus which allows for several Europe-wide
assessments rooted deeply in the current theoretical and empirical knowledge in the field. At
the same time, it should be borne in mind that there are still some uncertainties surrounding
some parts of the literature, which will be mentioned where necessary.
The analysis proceeds in two main parts, broadly following what might be termed external
and internal assessments of efficiency and equity. In the external assessment (Section 3.1),
investments in education and training at different levels over the life cycle are compared to
10
each other and to alternative uses of invested resources outside the education and training
system – both in the pursuit of efficiency (getting the highest returns on these resources) and
equity (helping the disadvantaged). The question addressed is: Where should policy spend its
money – in education or in other investments, and if in education, at which stage of people’s
life cycle?
The internal assessments (Sections 3.2-3.6) deal with the topic of using given input within
each part of the education and training system in the most efficient and equitable way. These
sections discuss specific policies that may change the extent to which the goals of efficiency
and equity are achieved at each level of education. The question addressed in this later part is:
How can policy get the most out of a Euro that is spent at a specific level of education, in
terms of efficiency and/or equity?
3.1 The life cycle of education: Efficiency and equity
Building on the traditional theory of human capital (cf. Section 1.2 above), James J. Heckman
and co-authors have developed a unifying perspective over recent years that allows to assess
education and training policies over the life cycle of a person (cf., among others, Heckman
2000; Carneiro and Heckman 2003; Cunha et al. 2006). Their economic model of the
technology of skill formation makes it possible to interpret the evidence on life cycle
education and training in a combined framework.
The key insight of their perspective is that the formation of skills is a life cycle process that
exhibits both recursive productivity and complementarity. Recursive productivity means that
the education learned at one stage is an input into the learning process of the next stage.
Complementarity means that the productivity with which investments at one stage of
education are transformed into valuable skills is positively affected by the level of skills that a
person has already obtained in the previous stages. Together, these features of recursive
productivity and complementarity generate a skill multiplier whereby an investment in
education at one stage raises not only directly the skills attained at that stage, but also
indirectly the productivity with which educational investments at the next stage will be
transformed into even further skills. These multiplier effects explain why education is a
dynamic synergistic process in which early learning begets later learning.
In their vast overviews of the empirical literature, mostly from the United States, Heckman
and co-authors show that education is indeed a life cycle process that exhibits such dynamic
synergies. They also stress that there are multiple important skills, both cognitive and noncognitive,
and that for some of these skills (most notably on the cognitive side), there are
sensitive or even critical periods in a person’s life cycle where investments are particularly
effective or even crucial. All this means that there are high returns to early investments, and
that inadequate early investments are difficult and costly to remedy later on.
This result has profound consequences for the assessment of efficiency and equity of different
policies that aim at fostering human capital. It creates a life cycle of human capital policies,
where measures at early stages are particularly crucial and deficiencies that may have
developed are hardly amenable at late stages. In early childhood, returns to educational
investments are highest because of their effects on facilitating later learning. In addition,
returns to early interventions are particularly high for children from disadvantaged
backgrounds who do not receive at home the foundation of skills necessary to prosper at later
stages of education. This is so because such interventions do not only build skills, but also lay
the foundation that makes later learning more productive due to the complementarities in
learning over the life cycle.
11
By contrast, in late adolescence and adulthood, returns to educational interventions are
relatively low, because they do no longer create substantive synergies since even later
learning is limited (and since people are beyond sensitive or critical periods to acquire certain
skills). Additional reasons for the lower returns at later stages of the life cycle include that
older people have a shorter time horizon during which to reap the beneficial effects of
education. Skills acquired by training and adult learning activities may also lend themselves
less easily to certification. What is more, the returns to investments at a late stage in the
educational life cycle are particularly low for people who are lacking in terms of prior skills,
because this lack makes their technology of forming additional skills a particularly
unproductive one. This does not mean that there would be no capacity of learning during
adulthood, but only that curative efforts at this late stage are particularly costly.
Figure 1: Returns to a Euro spent at different levels of education
Source: Authors’ depiction in adaptation of Cunha et al. (2006).
Figure 1 depicts this basic pattern of the life cycle of policies in education and training in
terms of efficiency and equity graphically. The figure adapts a plot from Cunha et al. (2006)
so that it depicts equity aspects in addition to efficiency aspects (see Cunha et al. 2006 for a
closer discussion of the literature, model and assumptions underlying the basic version of this
graph). When setting investments to be equal across the life cycle, the rate of return to a Euro
invested in human capital declines with the age of a person of any background. Given the
distribution of current spending across educational levels in Europe (cf. OECD 2005a) and
given the evidence on the effectiveness of education policies at different levels presented
below, the basic pattern of declining returns will also hold at current spending patterns
(although it could obviously change with considerably modified policies). Furthermore, the
two graphs depict that in the lack of public intervention, rates of return decline more rapidly
for children from low than from high socio-economic background. At young ages, they tend
to be higher for children from disadvantaged families, but at older ages, they tend to be higher
for children from well-off families. Thus, given the obvious difference of private educational
spending across socio-economic backgrounds, the pattern of declining returns will hold even
stronger for public spending than for total spending. It appears that the basic pattern of
declining returns and differences by socio-economic background holds for private and social
returns to education alike (although some evidence gathered in Psacharopoulos and Patrinos
Age
Rate of
return
Early Schools Higher Training
childhood education & LLL
Children from low socioeconomic
background
Children from high socioeconomic
background
12
2004 suggests that the private return may be rather flat between secondary and tertiary
education, while the social return shows the declining pattern). Both features may be even
more pronounced for social returns than for private returns, given the evidence on
externalities in terms of reduced crime and increased civic participation (cf. Section 2.3
above).
Of course, this pattern is a rough description of average effects. There is a lot of heterogeneity
within each of the two groups, and some students from low socio-economic backgrounds will
be doing particularly well in higher education. Also, the graphs depict a situation where no
additional policy intervention happens at an early age. As already argued, early interventions
could raise the returns of later investments also for children from low socio-economic
background. Note also that the assessment stresses a relative evaluation over the life cycle. On
average, there are probably positive returns to be had at later stages of the life cycle, as well –
only that they are lower than the returns to be had at early stages. While most evidence seems
to suggest that effects of early interventions can be very persistent through time, in particular
for children from disadvantaged backgrounds (cf. Section 3.2 below), this is not to say that
intervening in the early years alone will suffice to make the effects persist, as additional
interventions at later ages might be needed to evade decay of effects. Finally, as will be
discussed below, the depicted returns at the school level in particular are not necessarily to be
understood in terms of spending more money within current institutional systems, but rather
in terms of the returns that an improvement of the skills learned at school would bring.
Because the costs of skill-enhancing institutional reforms in school systems can be very low,
the rates of return for such policies, as depicted in the figure, can be relatively high (see
Section 3.3 below for details).
As a consequence of the differing rates of return over the life cycle depicted in the figure,
there is a trade-off between equity and efficiency for investments in late adolescent and adult
years. The most efficient policy would be to invest in students who have already acquired a
lot of skills because these give them higher learning productivity, while the most equitable
policy would of course target investments at those students who have obtained the fewest
skills up to then. While it may or may not be technically possible to remedy the lack of early
investment, such a policy may often not be cost effective. In order to reach the equity goal of
raising low-skilled adults to a certain income level it may be more efficient to give them a
bond that earns an interest (based on investments in physical capital or in additional human
capital of high-skilled persons) which would be higher than the return on an investment in
their own education or training. Thus, in terms of an external assessment, there may be better
alternative uses of invested resources outside the education and training system which would
be more effective in raising the income of low-skilled adults. However, to the extent that the
well-being of low-skilled adults is understood not only in terms of income but also in terms of
social participation, the relative preference may shift more in favour of education and training
policies (see Section 3.6 below for further discussion).
By contrast, there is no trade-off, but even a complementarity between equity and efficiency
for investments in early childhood. The most efficient policy at an early stage is exactly the
most equitable policy of investing in children who do not get taught necessary basic skills at
home. Such investments yield particularly large returns because of their additional indirect
effect of increasing the productivity of later skill acquisition of these children due to the
dynamic complementarities in the technology of skill formation. It has to be stressed that this
perspective requires a particularly long time horizon, which may run against the political selfinterest
of many policymakers, because the positive returns to early childhood investments
may not be fully visible until 20 or 30 years later. But such a long-term perspective allows an
assessment that shows the preferable investment strategies from a societal point of view.
13
While Heckman and co-authors build their view mainly on evidence from the United States,
the available European evidence, which unfortunately is far less developed, suggests that the
life cycle of human capital policies holds as much in Europe as in the United States. As will
be discussed in detail in the next section, there is considerable European evidence that
education and training policies that target low-skilled adults have often been ineffective,
while the little European evidence that exists suggests that early investments have important
long-lasting effects. Still, it should be borne in mind that our empirical knowledge on the
relative effectiveness of interventions at different stages of the life cycle is limited in Europe,
and less than perfect also in the United States (cf. Machin and Vignoles 2005).
In overall terms, the life cycle perspective on education and training policies suggests that the
returns to public policies are highest at very early ages and diminish over the life cycle. This
implies that an efficient policy would target its resources particularly at the very young. In
addition, at early ages the highest returns are possible when targeting children from
disadvantaged families, so that an efficient policy is at the same time equitable when enacted
in early childhood. Only when public policies set in too late will the efficient allocation be
inequitable.
This section determined the external efficiency and equity of policies in education and
training over the life cycle. The following sections address the question of internal efficiency
and equity of specific policies and instruments within the different levels of education and
training.
3.2 Early childhood education: Efficiency and equity
Efficiency:
Evidence from the United States suggests that early childhood education can be highly
efficient, especially when targeted at disadvantaged children (cf. the surveys in Barnett 1992,
1995; Currie 2001; Carneiro and Heckman 2003; Blau and Currie 2006; Cunha et al. 2006).
In particular very intensive interventions such as the Perry Preschool Experiment, the
Abecedarian Project and the Chicago Child-Parent Center Program, which have been
scientifically evaluated using either an experimental setup or statistical matching techniques,
show that participating children from disadvantaged backgrounds achieve superior
educational outcomes in terms of test scores, grade retention and high school graduation, as
well as reduced crime and delinquency. The studies that follow the participants into adult ages
also show positive long-run effects on labour market outcomes, criminal and other behaviour.
The benefits of these intervention programmes have been shown to exceed their costs by a
multiple. Although the features that make a proper design for high-quality pre-school
programmes are not well researched (cf. Currie 2001), a specific feature in terms of boosting
outcomes seems to be the intensity of the programmes, such as setting in at very early ages,
involving parents through home visits and generally intensive setups (cf. Cunha et al. 2006).
For European countries, there does not seem to be much comparable evidence in terms of the
well-founded scientific research designs that try to establish causality in the US evaluations.
For the Netherlands, Leuven et al. (2004) show that lowering the school starting age, which is
already as low as four years, would increase later educational performance of disadvantaged
students. Feinstein et al. (1999) find more mixed effects of pre-school attendance in the
United Kingdom, which they ponder might hint at a relatively low quality of provision. Still,
Feinstein (2003) shows that cognitive achievement in early childhood has a clear association
with the educational qualifications of UK adults in their mid-20s, which indicates that there
are substantial potential effects for early childhood interventions. In line with this, Goodman
14
and Sianesi (2005) find significant and long-lasting effects of early education on educational
and labour-market outcomes in Britain. Kamerman et al. (2006) survey additional,
particularly psychological studies from France, Sweden and the United Kingdom which
suggest that participation in high-quality early childhood education and care programmes is
positively associated with the cognitive, social and emotional development of children, their
school readiness and school performance, with associations being especially strong for
children from disadvantaged backgrounds.
In terms of international comparisons that contain many European countries, Fuchs and
Wößmann (2004) show that kindergarten attendance and particularly reported pre-school
reading performance are associated with higher reading performance at the end of primary
school, even after controlling for a vast number of family-background and school effects.
Schütz et al. (2005) find similar effects between the length of a country’s pre-school
education system and mathematics and science performance in middle school. The European
and cross-country evidence should be taken cautiously, though, because it is based on
relatively few studies and is mostly in terms of controlled descriptive associations without
necessarily distilling causality.
On a less rigorous level, there is a strong feeling in many European countries that there is a
lack of knowledge about the quality of early childhood education and care programmes,
because they do not tend to be controlled or tested (for an example, see OECD 2004). Due to
deficiencies in clarity and monitoring of goals and standards, the early childhood education
systems tend to lack accountability. In some cases, such as Germany, there is also some worry
about the low training level of staff and the weak link between pre-school and school system.
The US evidence shows that the more intensive programmes show better results, suggesting
that early childhood education is not just about day care. For Britain, Goodman and Sianesi
(2005) similarly find that effects of education-based programmes are longer lasting than
effects of attendance in nursery or playground programmes. In that sense, programmes such
as the French école maternelle, which has a curriculum to teach children the basics of reading,
writing and calculating, may be substantially more effective in fostering skills than
programmes such as the German Krippe and Kindergarten, which function mainly as day care
centres without strong educational mandate. Given the little and mixed evidence from Europe,
it is not clear to which extent putting more money into current European early education
systems without accounting for outcomes would indeed raise achievement and later labourmarket
outcomes.
Equity:
As indicated before, the US evidence shows that early intervention programmes targeted at
children with disadvantaged backgrounds carry particularly large positive returns. Thus,
policy measures to increase equality of educational opportunity through interventions in early
childhood have the potential to yield very high returns. The positive effects of earlier
education in the Dutch study were likewise restricted to the students from disadvantaged
backgrounds (Leuven et al. 2004). In their cross-country research, Schütz et al. (2005) find
that more extensive systems of pre-school education – in terms of both enrolment and
duration – significantly increase equality of opportunity, as measured by a lower dependence
of eighth-grade students’ test scores on their family background. Thus, early childhood
education programmes that are particularly targeted at disadvantaged children seem to have
strong potential for raising equity.
A key issue here is whether effects from early interventions persist or decay through time. For
the intensive US programmes that have been followed through adulthood, substantial longlasting
effects on economic and social outcomes have been shown in particular for children
15
from disadvantaged backgrounds. Among others, these long-run effects include impacts on
school achievement, grade retention, employment, earnings, social adjustment, crime
prevention, family relationships and health, and by now have been found to carry through to
ages as high as forty (for details, cf. Barnett 1992, 1995; Garces and Currie 2002;
Schweinhart et al. 2005; Cunha et al. 2006). While Magnuson et al. (2004) report that the
positive cognitive effects of US pre-kindergarten programmes fade quickly on average, and
that there are negative non-cognitive effects in terms of aggression and self-control, their
results also show that there are more lasting cognitive gains for disadvantaged children and
for those who get low instruction in early school years. Thus, even their more mixed results
suggest that the effects of early interventions are long-lasting for the disadvantaged.
In the United Kingdom, Goodman and Sianesi (2005) find significant long-lasting effects of
early childhood education on obtaining qualifications, employment and earnings at age 33.
Analysing students’ cognitive achievement during school life, Feinstein (2004) finds that
differences in educational attainment along the socio-economic dimension – which carry
through to adult economic outcomes – accumulate throughout school life. This suggests that
to achieve equality of opportunity, the required early childhood investments may need to be
supplemented by targeted investments for the disadvantaged throughout school. But UK
evidence by Currie and Thomas (2001) suggests that the increase in differences in educational
performance by socio-economic background during adolescence may be largely due to
differences in school quality, so that a policy of equality of treatment at the school level may
suffice once early interventions have laid an equal footing. Still, the evidence on the
persistence of the effects of early interventions is limited, and if the positive effects of early
interventions were to decay over the education life cycle, there would of course be more
scope and need for interventions also at later ages.
Complementarity or trade-off:
Given that early childhood education programmes can be both efficient and equitable, there is
obviously no efficiency-equity trade-off for early investment. Quite to the contrary, in
particular when targeted at the disadvantaged, there is a strong complementarity between
efficiency and equity in well-designed early childhood educational interventions, whose
effects seem to be able to persist through adulthood.
3.3 Schools: Efficiency and equity
Education policy at the school level can impact on efficiency and equity, but a key issue here
is that one needs to be very careful about determining which policies are more effective in
achieving these goals than others. This section discusses the evidence on the relative
effectiveness of different policies to affect efficiency and equity at the school level.
Efficiency:
As seen in Section 2 above, the quantity and especially the quality of schooling carry
substantial payoffs in terms of productivity and earnings in the labour market for the
individual and society alike. Therefore, and given that most Member States achieve virtually
universal enrolment in terms of the quantity of primary and (at least lower) secondary
schooling, it is particularly any policy that increases the quality of schooling in terms of
students’ cognitive and non-cognitive skills that may bring considerable benefits with it.
However, research shows that there is no clear, systematic relationship between student
achievement and the amount of resources spent on schools (see, e.g., Hanushek 2003 for an
overview; Wößmann 2005a and the references therein for evidence from Europe; Wößmann
16
2003b for cross-country evidence; and Gundlach et al. 2001 for evidence from several
European countries over time). In most European school systems, on average there seems to
be virtually no effect of class size or per-pupil spending on the cognitive skills acquired by
students. While results for teacher education and experience and for endowment with
instructional material are more mixed, the evidence overall gives little hope that substantial
gains in measured test scores would emanate if European countries increased their spending
without changing the current institutional structures of their school systems.
In contrast, a lot of research has accumulated over recent years showing that the efficiency of
the school system, in terms of cognitive skills per Euro spent (unfortunately, not much is
known on efficiency in terms of non-cognitive skills), can be substantially increased by
institutional reforms that focus the incentives of all actors in the system on increasing the
performance of students. Given that most of these reforms are institutional changes that do
not have major impacts on the spending level in the system, the gains in cognitive skills that
they can elicit are pure efficiency gains.
One of the most promising institutional structures that could lead to substantial gains in many
European education systems is a combination of accountability and school autonomy.
International evidence suggests that institutional features that introduce accountability by
externally testing and making public the quality of what students and schools deliver, e.g. in
terms of external exit examinations, create the proper incentives to improve educational
performance (cf. Bishop 1997, 2006; Bishop and Wößmann 2004; Betts 1998; Jürges et al.
2005; Wößmann 2002, 2003b, 2005b). Similar to the positive effects of external exit
examinations, Figlio and Lucas (2004) report US evidence on positive effects of grading
standards on student achievement. Another means to increase accountability are explicit
school-focused accountability systems, which have been shown to increase students’ learning
achievement in the United States (Hanushek and Raymond 2004; Jacob 2005).
At the same time, it should be borne in mind that designing proper accountability systems that
hold actors accountable for only those outcomes for which they are really responsible is not
an easy task. External exit examinations can introduce incentives for students if they produce
signals of accomplishment that have real consequences for students. Bishop (2006) suggests
that a well-designed system of external exit examinations should be curriculum-based, define
achievement relative to an external standard, measure the full range and signal multiple levels
of achievement, and cover the vast majority of students. By contrast, accountability systems
that aim to create proper incentives for schools require a value-added approach which tests the
learning gains (rather than levels) of each individual student (cf. Kane and Staiger 2002; Ladd
and Walsh 2002). School-focused accountability systems can also lead to strategic responses
on part of teachers and schools, for example by increasing placements of low-performing
students in special-education programs which are outside the accountability system or by preemptively
retaining students (Jacob 2005). High-stakes testing may even introduce incentives
for outright teacher cheating (Jacob and Levitt 2003). Thus, in implementing accountability
systems, it is crucial to provide means that keep strategic responses and fraud to a minimum.
As another institutional feature that can increase the quality and effectiveness of European
educational systems, school autonomy in personnel and process decisions can be beneficial
for student learning, at least in systems where external exit exams introduce accountability. In
several decision-making areas such as teacher salaries, course contents and school budgets,
the cross-country evidence based on different international student achievement tests suggests
that local decision-making without external exams is detrimental for student performance. But
the effect turns around to be positive where external exams exist (cf. Wößmann 2005b). Thus,
decentralisation works – if combined with the accountability introduced by external exams.
17
In effect, external exams and local decision-making complement each other in increasing the
efficiency of education systems. By introducing accountability, external exams mitigate the
negative effects of decentralisation due to opportunistic behaviour, ensuring a positive net
effect of decentralisation due to superior local knowledge. The frequently urged
decentralisation of school systems can enhance performance only if external exams provide
the right incentives for local decision-makers to act in a manner which promotes better
performance. Therefore, an efficient education policy would combine external exams with
school autonomy. That is, it would specify standards and monitor their attainment, but
simultaneously leave it up to the schools how these standards should be reached.
An institutional set-up that combines accountability with parental choice are systems which
give students in schools that repeatedly do badly on the accountability test a voucher to attend
private schools. In Florida, the threat of becoming subject to private-school choice if failing
on the test has been found to increase school performance particularly for disadvantaged
students (West and Peterson 2006).
More generally, policies that introduce competition, choice and market forces into the school
system have been shown to have strong potential to shift school systems to a higher level of
efficiency (for some background, cf. Hanushek et al. 1994; Shleifer 1998; Nechyba 2000; and
Hoxby 2003a). Sandström and Bergström (2005) provide evidence on significant positive
effects of competition from privately operated schools on the performance of public schools
in Sweden (cf. Björklund et al. 2004 for similar results). Bradley and Taylor (2004) and
Levaĉić (2004) find similar positive effects of school competition on the performance of
English schools, and the former show that these efficiency gains are achieved without
significant increases in polarization. Filer and Münich (2003) show that the introduction of a
voucher-type system in the Czech Republic led to the creation of private schools in areas
where public schools are doing badly and that the public schools facing private competition
improved their performance in obtaining university admission for their graduates.
In a cross-country analysis, Wößmann (2003b, 2005c) shows that countries with a larger
share of privately operated schools perform better on international achievement tests, after
controlling for a host of other influences. At the same time, across countries, larger shares of
public funding (as opposed to operation) are associated with better student outcomes. Since
public funding may increase the set of choices for poor families, the positive effect of public
funding may be another aspect of the skill-enhancing capacity of school choice and
competition. While the extent to which this descriptive evidence depicts causal relationships
remains to be seen, the international evidence is still suggestive in the sense that school
systems based on public-private partnerships where the state finances schools but contracts
their operation out to the private sector seem to be the most effective school systems.
Similar evidence of positive effects of school choice on student performance has been found
in the United States. The evidence provided by Neal (1997, 2002) suggests that the choice of
private Catholic schools leads to higher performance of US inner-city students. Hoxby
(2003b) summarizes ample evidence from recent policy experiments in the United States
indicating that school choice and school competition improve the performance not only of
these schools, but also of the public schools that face their competition. Peterson et al. (2003)
provide evidence from several randomized field trials in the United States showing that
school vouchers substantially increased the academic performance of African Americans who
were enabled to attend a private school. However, there are also sceptics who argue that
efficiency gains from a widespread voucher system might be small (Ladd 2002). Within the
traditional public system, increased competition among US public schools has been shown to
improve student performance, as well (Hoxby 2000). Charter schools, publicly financed and
18
overseen schools that have substantial independence, constitute a new form of competition
within the US public school system and have been shown to improve student performance in
some states but not in others (cf. Hanushek et al. 2005 and the references therein).
Another policy with the potential to increase efficiency in the school system are financial
incentives for teachers (cf. Lazear 2003a). Atkinson et al. (2004) find that the introduction of
performance-related pay had a substantial positive impact on student achievement in England
(see also their survey of other studies, the more rigorous of which also tend to find a positive
relationship between financial teacher incentives and student outcomes). Similarly, Lavy
(2002, 2004) has shown that monetary incentives for teachers based on their students’
performance improved efficiency immensely in Israeli schools, with financial incentives for
individual teachers being more efficient than teacher group incentives. The improvements in
student performance due to performance-related pay for teachers appear to derive from
changes in teaching methods, after-school teaching and increased responsiveness to students’
needs.
Teacher incentives are particularly crucial because arguably, apart from the students
themselves, teachers constitute the most important “input” in the education process. Teachers
have been shown to differ severely in the amounts of knowledge that they convey to the same
students (cf. Rivkin et al. 2005). The problem in terms of political utilisation is that teacher
quality thus measured is hardly related to measurable features of teachers such as their level
of education or experience. Thus, while improving teacher quality would beyond doubt
increase the efficiency of schooling, there is currently little knowledge on how to best
advance teacher quality. However, one component of teacher quality that is conducive to
student outcomes seems to be teachers’ academic proficiency (Eide et al. 2004). Eide et al.
(2004) argue that the disconnection between the structure of teacher compensation and the
individual teacher’s performance is at the heart of the problem of the increasing difficulty of
hiring and retaining high-skilled teachers. In line with this argument, Hoxby and Leigh (2004)
show that pay compression due to unionization can explain a major part of the decline in
teacher aptitude in the United States. Hoxby (2002) shows that different forms of school
choice induce schools to hire higher-quality teachers. While many attempts at introducing
performance-related reward programmes have been unsuccessful due to poor design and
implementation, for example due to a lack of clarity in goals and reliability of criteria, well
designed and implemented schemes that recognize and reward teacher performance stand a
good chance of improving student outcomes (cf. OECD 2005b for a review).
On a more descriptive basis, OECD (2005b) provides a good review of international
experiences on attracting, developing and retaining effective teachers. Important lessons
include an emphasis of teacher quality over teacher quantity, a flexible and ongoing scheme
of teacher education and development aligned with school needs, and school autonomy in
teacher personnel management. To improve teacher quality, it is suggested to pay attention to
the selection criteria for teacher education and employment, ongoing teacher evaluation
throughout their career, and recognition and reward for effective teaching.
Taken together, policies that set the right incentives for students, teachers, schools,
administrators and parents can contribute substantially towards increasing the efficiency of
resource use in schooling. Institutional reforms that may enhance efficiency in school systems
include external exit exam systems and other accountability systems, school autonomy in
personnel and process decisions, competition and choice, and performance-related rewards.
19
Equity:
The degree of equality of educational opportunities that is reached by school systems varies
considerably across countries. While in some countries, students’ educational performance is
strongly predetermined by their family background, this is much less the case in other
countries (cf. Schütz et al. 2005).
However, similar to the goal of efficiency, it seems hard to achieve more equity by just
increasing educational spending on students from disadvantaged backgrounds. There is very
little evidence suggesting that spending targeted at disadvantaged students is any more
effective than spending on average. Thus, Leuven and Oosterbeek (2006) report quasiexperimental
evidence from the Netherlands showing that for a broad range of interventions
targeted at disadvantaged groups, such as class-size reductions, extra resources for personnel
and extra resources for computers, substantial positive effects can be ruled out. Similarly, it
has proven hard to find a significant effect of the policy of education priority zones in France,
which channel additional resources to disadvantaged schools (Bénabou et al. 2004). Also,
much US evidence suggests that the extent to which a refocusing of additional material
resources towards the disadvantaged can alter the distribution of educational outcomes is very
limited at best (cf. Betts and Roemer 2006; Hanushek 2006), although there are studies that
find that class-size reductions are more effective for disadvantaged students (cf. Krueger
1999).
One policy with substantial impact on the equality of opportunity achieved in a school system
is the timing of the tracking of students into different kinds of schools based on their ability. It
seems that early tracking, e.g. at age ten to twelve, as is common in several European school
systems, is particularly harmful for children from families with low socio-economic status
and therefore hinders reaching equality of educational opportunity (for evidence, see
Hanushek and Wößmann 2006; Schütz et al. 2005; Ammermüller 2005; Bauer and Riphahn
2006; Dustmann 2004). Therefore, postponing tracking to a later stage in the educational
process can act as a policy to increase equality of opportunity at the school level.
A second policy that seems to affect equity at the level of compulsory schooling is the size of
the pre-school education system in a country (cf. Section 3.2 above). Thus, an extensive
system of early education in terms of both duration and universal enrolment can be viewed as
another policy to increase equality of educational opportunity at the school level (cf. Schütz et
al. 2005). In a similar vein, Leuven and Oosterbeek (2006) find for the Netherlands that
lowering the compulsory school attendance age is the only intervention analyzed which
produces significant positive effects for disadvantaged students. While equalizing effects
might also be expected from whole-day schooling, the cross-country pattern does not show
clear evidence for equalizing effects (Schütz et al. 2005).
Some of the above-mentioned institutional reforms that can boost efficiency may also be used
to increase equity. For example, simulation studies by Nechyba (2000) show that a voucher
system which gives choice to poor families can actually serve equity goals, e.g. by integrating
neighbourhoods. This is even more so when the vouchers are designed to explicitly target
disadvantaged families. In particular, because existing systems already have a lot of
segregation, introducing choice can decrease the segregation due to mobility. Likewise, in the
Florida setup which combines accountability with choice, it was especially the disadvantaged
students whose educational performance gained from the threat of becoming subject to
private-school choice if schools failed on an accountability test (West and Peterson 2006).
Charter schools also tend to disproportionately serve disadvantaged students whose regular
schools were performing badly (cf. Hoxby 2003b). Hanushek et al. (2005) show that parents
seem to be capable of choosing in a well-informed way in the sense that they tend to exit
20
charter schools of low quality, although this tendency is weaker for students from poor
families. To promote equity, financial incentives for teachers can also be targeted at at-risk
students to particularly boost their performance (Lavy 2002, 2004).
Improving the quality of the teaching force of disadvantaged students could certainly advance
the cause of equity. Ensuring that all students have access to high quality teaching, with
capable people wanting to teach also in disadvantaged schools and with a high quality of their
teaching, will help in raising the equity of schooling (cf. OECD 2005b). But the problem is
again that current knowledge on practical means on how to achieve this is limited. Training
teachers to identify learning problems early on might help, although empirical evidence on
this is missing. A fundamental problem for equity in this area is the endogeneity of the
distribution of teachers, in that better teachers may tend to choose to teach in relatively welloff
schools, so that schools in problematic neighbourhoods have problems in attracting highquality
teachers (cf. Bonesrønning et al. 2005).
Complementarity or trade-off:
The current knowledge on the effects of schools and school policies is mostly limited to
effects on cognitive skills, while there is not much research on non-cognitive and longer-term
outcomes. Clearly, more research needs to be done here, particularly in Europe. But at the
current level of knowledge, it seems fair to conclude that there appears to be no strong
evidence for a substantive trade-off between efficiency and equity at the school level. Across
countries, performance levels and the distribution of outcomes are largely unrelated (Schütz et
al. 2005). With respect to specific policies acting at the school level, it often seems that
policies that increase efficiency are neutral with respect to equity, while equity-conducive
policies do not strongly affect efficiency. For example, Bradley and Taylor (2004) find that
competition has positive effects on efficiency in UK secondary education, without significant
polarization. Likewise, early tracking of students into different-ability schools has been found
to increase inequality, while there is hardly any evidence that it would improve efficiency, at
least in terms of basic cognitive skills (Hanushek and Wößmann 2006). If anything, there
might even be a slight complementarity for this policy, in that later tracking reduces
inequality and seems to have a slight positive impact on efficiency.
More generally, there is also some evidence for complementarities of certain policies in
raising both efficiency and equity, most notably for policies that increase early education and
well-designed forms of choice and accountability. In terms of the pre-school education
system, it was already discussed that extensive intervention programmes in early childhood
can be both equitable and efficient. Similarly, Schütz et al. (2005) find that an extensive
system of early-childhood education can improve equity in the school system, and at least the
length of the pre-school education cycle is also positively associated with average school
performance across countries.
As discussed above, Wößmann (2005c) provides evidence for a strong complementarity
between efficiency and equity policies in the sense that public funding of schools combines
very well with private operation of schools. In fact, public funding even seems to improve
efficiency, presumably because it allows additional choice and thus competition for families
who could otherwise not choose because they are credit constrained. If public money is
allowed to go to privately operated schools, this is the most efficiency-conducive
combination. Thus, even in terms of mere efficiency, education systems where the state does
the funding and the private sector runs the schools seem to outperform all other kinds of
system. At the same time, Schütz et al. (2005) find that public funding improves equity, as
does private operation. That is, a combination of private operation with public funding may be
conducive to both efficiency and equity.
21
Similarly, while many people fear that voucher-based choice systems in education might
reduce equity at the expense of efficiency, the simulations by Nechyba (2000) suggest that it
is actually more likely that voucher systems would also improve equity, particularly with a
well-targeted voucher design. West and Peterson (2006) find that choice threats embedded
within accountability systems in Florida not only boosted average performance, but in
particular favoured disadvantaged students. Similar equity-enhancing effects have been found
for voucher and charter school programs (Hoxby 2003b). On the other hand, Burgess et al.
(2006) find a positive association between the size of the choice set of nearby schools and
post-residential stratification of students across schools in England, although the effect of
school choice on initial residential choices is not clear. Björklund et al. (2004) also suggest
that there are signs that competition from privately operated schools increased segregation
and dispersion of student performance in Sweden, although they also show that the
association between family background and student performance did not change. In general,
issues of implementation seem crucial when competition is introduced in schooling, and
without proper safeguards, critics fear that competition may induce cream skimming, increase
segregation and lead to adverse effects on disadvantaged students (e.g., Ladd 2002). A proper
design of an equitable voucher system and of limits to cream skimming by schools is thus a
crucial task to ensure equitable outcomes. Issues of design and implementation of school
choice to improve both efficiency and equity contain measures such as the flow of
information to parents and regulatory and financial frameworks and incentives, which can be
devised to encourage socio-economic integration (cf. Betts and Loveless 2005).
In terms of accountability systems, Wößmann (2005b) finds that central exams are strongly
positively related to higher average levels of performance, while at the same time there is
some evidence that they can reduce the disadvantage of coming from an immigrant
background. There is also some tentative evidence that central exams may be able to increase
equity along the parental-education dimension, although evidence here is much more mixed
and may be better interpreted as central exams being rather neutral with respect to equity.
All in all, equity-enhancing structures often also seem to serve to improve educational
efficiency and vice versa, showing few signs of an equity-efficiency trade-off in the structure
of school systems. Even more, efficiency-conducive policies can be targeted at disadvantaged
students in order to boost equity goals, as has been shown, for example, in the case of targeted
teacher incentives (Lavy 2002, 2004). Ultimately, if schools challenge all students to their
highest potential, an efficient school system can also be equitable at the same time (cf. Arrow
et al. 2000; Peterson and Wößmann 2006).
3.4 Initial vocational education and training: Efficiency and equity
In several European countries, vocational education plays an important role at the end of or
directly after the compulsory schooling cycle (issues of continuous training later in life will be
discussed in Section 3.6 below). The main feature of vocational education programmes is that
rather than aiming at the provision of general skills that can be used in a variety of different
activities, they provide an education that prepares for specific tasks. Such programmes may
be either solely school-based, or – more often – they may combine vocational schooling with
work experience on the job, as in apprenticeship contracts. In the latter case, vocational
programmes differ from programmes of general education in that the educational decisions
are not only made by students and their families, but also by firms.
The debate on vocational versus academic qualifications and their payoffs is more heated in
some European countries than others. But despite its prevalence in many European countries,
there is a general lack of hard empirical evidence on which to base a sound analysis of
22
efficiency and equity issues in initial vocational education and training (cf. Leney et al. 2004).
Consequently, the scientific assessment is forced to remain very limited. Furthermore, the
extent, design and pattern of operation of initial vocational education and training are very
different across Member States (cf. Lynch 1994) and even across sectors within Member
States (e.g., Franz and Soskice 1995), so that Europe-wide assessments are particularly hard
to arrive at for this type of education.
Efficiency:
The economic returns to vocational education on the labour market are scientifically
particularly hard to identify because lower-ability students tend to sort themselves into these
types of education. While descriptive comparisons tend to find that returns to vocational
education may be lower than returns to general education (Psacharopoulos 1994), and while
the size of the returns may differ considerably across European countries, it seems that
vocational education does carry reasonable earnings returns in countries with well-developed
systems of vocational education (cf. Lauer and Steiner 2000 for an example; cf. also Bishop
1994). Countries with well-established apprenticeship systems also tend to show lower shares
of students without any post-compulsory education and lower youth unemployment (cf. Ryan
1998). On the other hand, they also appear to show large unemployment among older people
who previously went through the apprenticeship system, suggesting that there is an increased
obsolescence of specific skills due to rapid technical change.
In general, well-developed apprenticeship systems that combine specific education in
vocational schools with on-the-job training in firms tend to receive positive assessments from
economists (e.g., Steedman 1993; Acemoglu 2001; Clark and Fahr 2002). It is argued that the
combination of vocational education with job experience facilitates the transition from
schooling to work (cf. Ryan 2001 for a review) and motivates students to perform well and
firms to provide decent training. For example, Bonnal et al. (2002) show that apprenticeship
schemes that combine vocational education with within-firm training are better suited to
facilitate the school-to-work transition in France than pure vocational schools. But
apprenticeship contracts and their success in Europe differ substantially. It seems that the
design of adequate schemes is important to foster satisfactory skill formation. Among others,
a sufficient duration of the apprenticeship schemes may be vital (cf. Euwals and Winkelmann
2004 for evidence of positive labour-market outcomes of longer apprenticeship duration in
Germany), as might be proper certification and quality monitoring by the state (cf. Acemoglu
and Pischke 1999). It has also been argued that a high level of competition among firms
offering apprenticeships and among students is important to assure success (Heckman 2000).
But in general, the empirical knowledge on what determines a successful system of vocational
education is very limited.
For example, Germany – a country with one of the most developed apprenticeship systems –
has witnessed an increasing gap between the declining demand for apprentices by firms and
the supply of students wishing to enter the apprenticeship system. This lack of apprenticeship
training positions could point at inefficiencies, in the sense that training apprentices is too
costly for the firms. Swiss evidence shows that firms’ probability to train apprentices is
strongly affected by the ratio between costs and benefits of training to them, in particular in
terms of whether there are benefits of work to be performed productively by apprentices
(Muehlemann et al. 2005; Wolter et al. 2006). However, the German gap need not be a sign of
general inefficiencies, but may rather be a sign of an improper sharing of costs between
apprentices, firms and the state. Because of a shift of time from productive workplace
activities to education, disproportionately large increases in apprentice earnings and a shift in
teaching towards more general rather than firm-specific skills (Wößmann 2004), the financial
23
burden may have to shift away from firms towards apprentices in order for the gap to be
closed.
In a somewhat less developed system of initial vocational education and training, the United
Kingdom has faced the problem of a proliferation of vocational qualifications that weakened
the signal of what students who go through a vocational programme learn (cf. Machin and
Vignoles 2005). As a consequence, employers are unaware of the skills provided and thus
unwilling to reward vocational credentials.
In general, these experiences suggest that it is important for an efficient system of initial
vocational education and training to provide qualifications well-tailored to market needs, both
in terms of content and in terms of signalling these contents. Provision by the private sector
combined with certification by the public sector may be one means of achieving these goals.
Equity:
For students who do not reach the standards of academic skills necessary to succeed in
general higher education courses, acquiring the more practical skills of initial vocational
education and training programmes may be a viable road towards skill improvements,
especially when the education is combined with training on the job. In France, the particularly
disadvantaged students who tend to opt for apprenticeships gain from these apprenticeships in
being more likely to find a job than students who obtained a merely school-based vocational
education (Bonnal et al. 2002). On a descriptive level, there is an unconditional negative
association between the share of students in vocational education and the proportion of early
school leavers across European countries (Leney et al. 2004), suggesting that vocational
programmes may help to reduce the incidence of school dropouts and thus target the most
disadvantaged students.
On the other hand, the technological changes over recent decades have reduced the demand
for relatively low-skilled workers (cf. Machin 2004), which may partly also hit vocational
qualifications. It is a common experience over recent years that young adults who have left
school with low grades have increasing difficulties in finding positions in vocational training.
German evidence shows that lower-educated school leavers are selected into apprenticeships
with less favourable employment prospects, and over time, they also find it increasingly
difficult to transfer successfully from apprenticeship to work (Büchel 2002). This underlines
the life cycle perspective taken above which stresses the importance of a high-quality
education up to the school level.
Furthermore, the long-run payoffs to the relatively specific skills obtained in vocational
education programmes may have declined due to more rapid obsolescence of specific skills
caused by increasingly rapid technological change. Krueger and Kumar (2004) present a
model calibration suggesting that the European focus on specialized, vocational education
might have been successful during the 1960s/70s. But they show that the difference in
education policy to the more concept-based, general education of the United States may be
able to explain much of the lag in European growth when new technologies emerged more
rapidly during the subsequent information age. Thus, the necessity of tailoring for market
needs in order for vocational programmes to be effective is hard to achieve, because market
needs in some areas are changing fast and often differ spatially. In particular, narrow
vocational education run the problem of mismatching with market needs, a problem amplified
by low skill multipliers of vocational skills. Because of the impossibility of planning
vocational education given rapid technological advances, it may be more effective to enhance
the level of general competence of students from low socio-economic background, and brief
24
stages of vocational specialization can take place throughout the labour-market career of the
individual (cf. Psacharopoulos 1991).
Complementarity or trade-off:
Given the extremely tentative character of the assessments of efficiency and equity issues in
initial vocational education and training, it seems hard to come to a conclusion about the
possible complementarities or trade-offs between efficiency and equity at this stage of the
education system. The only conclusion that seems reasonable to make is that any initiative
that manages to increase the efficiency of vocational education programmes in all likelihood
would also help the cause of overall equity in the system, because in relative terms it is the
students from lower socio-economic backgrounds who enter the vocational system in larger
shares. But without clearer evidence on the internal and external efficiency and equity of
initial vocational education and training, any assessment will have to remain far from
satisfactory.
3.5 Higher education: Efficiency and equity
In contrast to the vocational qualifications discussed in the previous section, higher education
obtained at colleges, polytechnics and universities tends to impart more academic
qualifications. While the empirical evidence on issues of efficiency and equity in European
higher education is meagre at best, there is a substantial literature advancing theoretical
arguments, often based on practical observations, in particular related to the financing side of
higher education (see the reviews by Barr 2004 and Greenaway and Haynes 2004).
Efficiency:
Higher education is generally associated with high returns on the labour market in terms of
earnings and employability (cf. Section 2.1), suggesting that obtaining a higher education
degree can be a highly efficient investment. Over the last two decades of the twentieth
century, there has been a strong shift in demand towards high-skilled workers in the majority
of industrialized countries (cf. the surveys in Machin 2004 and chapter 10 of Cahuc and
Zylberberg 2004). Mostly driven by technological changes that are biased in favour of highskilled
tasks, employers seem to be increasingly demanding workers with graduate
qualifications, which has increased their relative labour-market prospects in terms of
employability and earnings. In countries close to the technological frontier, returns to higher
education may even be the highest ones (cf. Vandenbussche et al. 2004).
The amount of private spending on higher education might be inefficiently low if a lot of
families were truly credit constrained in the traditional sense, that is, their children would not
enter higher education because their families do not have the financial means to pay for it at
the time of decision-making. However, ample evidence from the United States suggests that
true credit constraints are not a binding issue in the admission to higher education in the vast
majority of cases (cf. Carneiro and Heckman 2003; Cunha et al. 2006). Rather, the fact that
students from disadvantaged family backgrounds have a much lower probability of entering
university seems to be caused by a lack of early educational investments which deprive these
students of the basic prerequisites to advance to university. If this is true in the United States,
where colleges and universities charge substantial private fees, then it seems that it is even
more relevant in Europe, where higher education is mostly publicly funded. For example, a
major determinant of degree performance in UK universities is students’ performance on Alevel
scores at the school level (Smith and Naylor 2001), and academic preparedness is the
major determinant of dropout of medical students in UK universities (Arulampalam 2004b).
25
Thus, financial interventions at the late stage of higher education are unlikely to facilitate
efficient investments – the intervention should have happened much earlier in the educational
life cycle (see Section 3.1 above).
In terms of technical efficiency, in many Member States there is a growing feeling that
current systems of higher education are not organized in an efficient way. While empirical
evidence on this is hard to come by, many commentators, such as the German Council of
Economic Experts, allege that current systems of higher education, which are traditionally run
under state control and employee management in many Member States, exhibit a high degree
of inefficiency. Psacharopoulos (2005) provides descriptive evidence supportive of this view,
and Lowry (2004) presents US evidence showing that public universities faced with little
competition and universities that rely heavily on government subsidies perform worse in
terms of graduation rates in undergraduate education. As a consequence, commentators
suggest that efficiency in European higher education could be raised by introducing
competition, which would provide market discipline to the behaviour of providers. In
Germany, for example, the Council of Economic Experts proposed market-based reforms that
would organize higher education in a competitive framework, allow colleges and universities
freedom from bureaucratic interventions, and give the actors incentives for superior
performance and quality, among others through performance-related pay (Sachverständigenrat
1998, pp. 247-256). Rather than keeping the management of higher education institutions in
the sole responsibility of the state, it seems that European systems of higher education could
gain a lot in terms of efficiency by some measures of privatization (cf. Psacharopoulos 2005).
As part of market-based reforms, collecting tuition fees from students could increase the
incentives for students to study more efficiently. If the beneficiaries of higher education had
to make a greater private contribution to the costs, this could not only raise the efficiency of
the use of their own time, but it could also create incentives for providers of higher education
to use their resources more efficiently. In a European perspective, the internal market for
higher education with mobility of students across Member States can help to enact
functioning competition in higher education where the markets in many Member States are
too small to enable workable competition. At the same time, the mobility of students calls for
some form of coordination of the policies of Member States to ensure a proper matching of
costs to beneficiaries.
Equity:
The shift in relative demand towards highly educated and skilled labour over the past decades,
which seems to be mostly driven by skill-biased technological change, had major effects on
the education structure of employment and educational wage differentials on the labour
market (cf. Machin 2004; Cahuc and Zylberberg 2004, chapter 10). Largely unrelated to the
education policies pursued, this shift has entailed an increase in overall inequality which
manifested itself mainly in a strong increase in wage inequality in the United Kingdom (as
well as the United States) and in a strong increase in relative unemployment of the low-skilled
in Member States in Continental Europe. This suggests that inequalities in access to higher
education translate into inequalities in economic outcomes in an ever stronger way.
In most current systems of higher education in Europe, equality of access is not achieved. In
terms of financing, all tax-paying households contribute to the public financing of higher
education in the standard tax-financed systems of European higher education. But in terms of
access, in contrast to the compulsory levels of education, there is self-selection at the stage of
higher education programmes in that children of academics are much more likely to go to
university. As a consequence, unless there is very strong tax progression, tax funding may be
viewed as unequal in that part of the funding may come from groups with little opportunities
26
to access higher education (cf. Barr 2004; Psacharopoulos 2005). As argued above, the main
reason for inequality in access is probably not that children from disadvantaged backgrounds
cannot afford to go, but rather that they do not have the prerequisite educational
qualifications. To alleviate this inequality in access, policy has to intervene much earlier.
Otherwise, any policy that aims to increase participation in higher education could easily
result in higher participation combined with increased inequity because it will be students
from well-off families who increase participation, as has happened in the United Kingdom in
the 1980s/90s (cf. Machin 2006). US evidence, while suggesting that financial aid schemes
can have a significant effect on college attendance (although the effect on college completion
is less clear), is also mixed on whether the effect of financial aid is larger or smaller for
students from disadvantaged backgrounds (cf. Kane 1994; Dynarski 2003; and the review in
Dynarski 2002).
Introducing tuition fees in the current setting without proper care for equity goals would
probably aggravate the problem of unequal access to higher education – at least when equity
is viewed in terms of the students’ family background. Therefore, it seems critical from an
equity perspective to provide proper financial means to able students from poor family
backgrounds. An obvious solution is to defer the tuition fees by combining them with a
system of income-contingent loans, which allow credit-constrained students to cover the fees.
Income-contingent loans are loans that enable students to finance university education and
that have to be paid only if and when the students have left university and earn an income
above a specified threshold. For a proper functioning, such loans should be made available to
all students and should cover cost of living in addition to tuition fees.
The fees could be selective rather than across the board. Students from low socio-economic
backgrounds could receive targeted grants and scholarships, whereas students from well-off
families would pay the full social cost of their study (cf., e.g., Acemoglu 2001 for a brief
survey of possible equity-enhancing effects of means-tested subsidies to higher education).
Subsidizing higher education conditional on parental income can be a useful component in an
efficient design of overall redistribution policy (Dur et al. 2004). Because the substantial
uncertainty of investments in higher education could discourage particularly disadvantaged
students, the state could carry most of this uncertainty through the income contingency of the
loans. In equity terms, the income contingency creates a built-in insurance against inability to
repay the loan. Again, issues of implementation will determine the administrative costs of the
system. From an international perspective, contracts should be set up to ensure repayment
also if a student later emigrates (see Barr 2004 and Greenaway and Haynes 2004 for further
details of how to design a system of fees with income-contingent loans).
Income-contingent loans can even be equity-enhancing when a different perception of equity
is used: equity not in terms of family background, but in terms of students’ own lifetime wellbeing.
This seems to be a particularly relevant perspective for higher education. As discussed
above, there are substantial private returns from obtaining a degree in higher education, so
that by the very attendance of higher education these students will be the economically betteroff
in the future. Therefore, it seems only right from an equity perspective that they should
also make contributions to the cost of their higher education, at least at a time when their
earnings are indeed high once they have entered the labour market.
Complementarity or trade-off:
In this perspective, both efficiency and equity considerations support a system of higher
education where beneficiaries contribute tuition fees which they finance through incomecontingent
loans (cf. Greenaway and Haynes 2003). Furthermore, fee and loan policies could
be targeted specifically at students from poor family backgrounds to alleviate further equity
27
concerns. By contrast, the state-run and state-financed way in which European higher
education systems are currently set up makes them both inefficient and inequitable (cf.
Psacharopoulos 2005). Thus, a policy of tuition fees coupled with income-contingent loans
could create some complementarity between efficiency and equity in higher education.
Similarly, if credit constraints were the main cause for unequal access, equitable policies
which subsidize costs for students from low-income families would also be efficient, because
they would enable high-ability students with high returns to obtain a higher education degree.
Still, in reality the main reason for unequal access to higher education lies mainly in a lack of
prerequisites due to deficiencies at earlier stages of the education life cycle. In this case, there
is indeed a trade-off between efficiency and equity in higher education, since it would be
efficient to focus resources on those who are already advantaged. As has been seen in the
past, policies that aim to increase participation in higher education in an effort to enhance
equity can therefore end up raising inequity, because it is students from relatively well-off
families who will disproportionately take up the new slots (cf. Machin 2006).
3.6 Continuing training and adult learning: Efficiency and equity
While the previously discussed education programmes mostly take place before students enter
the labour market, this section discusses investments in continuing training and adult learning
that take place concurrent with or after some labour-market experience. Similar to the workrelated
programmes of initial vocational education and training discussed in Section 3.4,
continuous training tends to provide specific skills, and it is decided upon not only by the
person to be educated, but also by the employer.
As in the case of higher education, the basis for addressing issues of efficiency and equity of
education in adulthood, in terms of continuing training and adult learning, is relatively thin.
On the one hand, policy recommendations based on theory are ambiguous and depend
crucially on the specific setting (cf. the recent survey by Leuven 2005). On the other hand,
particularly in Europe, statistical data on training costs are rare, and information on training
benefits in terms of productivity is limited (Bassanini et al. 2005), restraining a profound
empirical analysis. But still, in particular in light of recent cross-European evidence on
workplace training by Bassanini et al. (2005), some basic patterns and general results emerge.
Efficiency:
In terms of efficiency, a fundamental difference emerges between employer-provided
workplace training and publicly provided training programmes, mostly for the unemployed.
Workplace training provided by firms seems to be associated with substantial earnings
returns, although distilling causality is particularly hard in this case (cf. Section 2.1 above,
and chapter 4 of Bassanini et al. 2005 for a survey and own evidence). From a theoretical
point, it is not clear whether the current institutional setup of European labour markets sets
efficient incentives for investments in training. In competitive labour markets, firms have
incentives to invest efficiently in firm-specific skills, while employees have incentives to
invest efficiently in general skills (Becker 1964). In imperfect labour markets, by contrast,
firms can also have incentives to sponsor general training, but underinvestment may still arise
(cf. Acemoglu and Pischke 1999). Firms can also have incentives to finance the acquisition of
general skills if different firms use the different general skills in different combinations and
attach different weights to each of them (Lazear 2003b). Empirically, Bassanini et al. (2005)
point out that there is no clear-cut evidence for an under-provision of workplace training, so
that the currently achieved level may not be too far from the socially efficient one in most
European countries.
28
However, there is a clear pattern emerging that training by private firms goes mostly to the
higher educated. Similar to previous research from the United States, Arulampalam et al.
(2004a) and Bassanini et al. (2005) find that also in Europe, training increases with education
and skill-intensity of occupations, as would be expected from the skill multiplier effects
discussed in Section 3.1. This suggests that the rates of return to training seem to be highest
for people who already have high education – either because the benefits are higher or
because the costs are lower – so that an efficient allocation of investment in training would go
to those who are already high-skilled. By contrast, rates of return to training investments
might be particularly low for the disadvantaged. Oosterbeek (1998) presents Dutch evidence
suggesting that this pattern reflects indeed differing net benefits for workers of different
education levels, rather than firms favouring different workers differently.
A role for the state in furthering the efficiency of training systems might lie in improving
information about training opportunities, setting appropriate legal frameworks and ensuring
portability of skills (Bassanini et al. 2005). State regulation could also help by monitoring the
quality of training programmes and certifying skills, which could facilitate contracting
between firms and employees at the individual level. However, in theory such measures can
also be counter-productive, and detailed empirical evidence on the efficiency effects of state
regulation of training programmes is still missing (cf. Acemoglu and Pischke 1999).
In contrast to employer-provided workplace training, the track record of the efficiency of
public sector training programmes, usually devised as part of active labour market policies, is
far bleaker (cf. Heckman et al. 1999 for a general survey of US evidence and Heckman 2000
for a survey of failed training programmes in the United States). Evaluation studies of public
training programmes in European countries, including France, Germany, Ireland, Norway,
Poland, the Slovak Republic, Sweden and the United Kingdom, tend to report very low or
even negative returns, in the sense that the costs of the programmes are significantly higher
than the benefits in terms of increased earnings or employment probabilities (cf., e.g., the
surveys by Martin and Grubb 2001 and Kluve and Schmidt 2002). Often, it is hard to identify
any significant positive effect of public training programmes on earnings and employability
(cf. Fitzenberger and Prey 2000 and Lechner 2000 for examples from East Germany). There
are even cases where significant negative effects of public sector sponsored training on
earnings and employability of participants have been found, at least in the short run, although
more recent evidence suggests that effects in the longer run may be not as bleak, albeit
probably far from being cost effective (cf. Lechner et al. 2004 and the references therein for
evidence from West Germany).
Thus, training schemes devised by the state seem to be mostly ineffective and remote from
cost effectiveness. Still, effects can vary substantially between different groups. Broadly
speaking, public sector training programmes have been found to be more effective for adult
women than for adult men and youth (cf. Heckman 2000; Kluve and Schmidt 2002). But quite
generally, evidence from the United Kingdom suggests that adult learning has very little
directly measurable labour-market effects (cf. Machin and Vignoles 2005), although there
may be some effects for the most disadvantaged (Jenkins et al. 2002).
Together, the discussed evidence suggests that programmes of continuing training and adult
learning should be related to and thus produced on the job. Therefore, encouraging the private
sector, which is better aware of market demands, to produce additional training seems better
policy than direct public production of training (cf. Heckman 2000; Kluve and Schmidt
2002).
29
Equity:
In terms of equity, publicly provided training programmes often target the unemployed, which
would seem highly welcome from an equity perspective. However, the evidence just
discussed that these programmes are not effective in most cases suggests that they in effect do
not strongly advance the cause of equity. Among targeted public sector training programmes,
US evidence suggests that results for programmes aimed at displaced workers are often
discouraging (cf. Heckman 2000). But there is some European evidence suggesting that
programmes targeted at the disadvantaged can help to improve their labour-market outcomes
(cf. Kluve and Schmidt 2002).
The fact that firm-provided workplace training tends to be confined to the high-skilled
suggests that this kind of training tends to hinder rather than advance equity causes. In terms
of equality of opportunity, public interventions might be justified if circumstances out of the
reach of individuals, such as their family background, prevent them from obtaining additional
training. While in the United States, the provision of company training is negatively
associated with family background once education and ability are controlled for (cf. Carneiro
and Heckman 2003), Bassanini et al. (2005) find that training outcomes in Europe are
significantly affected by parental background even after controlling for education, in
particular in Southern European Member States. Given data restrictions, the extent to which
this result is robust, and the extent to which public policies might be able to affect it, remains
an open question. Because equality of opportunity is not necessarily a goal of private firms,
Bassanini et al. (2005) stress that public training policies that try to address equity issues
should be targeted at individuals rather than firms.
There are two features that move this relatively negative assessment of training programmes
from an equity point of view towards a more positive assessment. First, the perspective taken
in this document, recommending that skill deficiencies of the disadvantaged should be
remedied as early as possible, is very long-run. In particular, this perspective misses those
who currently have already left the phase of compulsory education with a low level of skills.
Especially when taking the view that equity is not just about money transfers but also about
social inclusion, which may mean that working carries intrinsic individual dignity that should
be valued as a means against a culture of dependence, the relative preference for targeted
training policies over other equity policies increases. In many cases, it may still be more cost
effective to subsidize jobs rather than to spend the money on investments in adult learning.
But in this perspective, it is particularly noteworthy that among the different active labour
market policies, training programmes seem to be more effective than subsidy-type
programmes (Kluve and Schmidt 2002). Thus, policies that encourage training may in many
instances still be the best available option to increase the fates of currently low-qualified
adults, helping them find work and earn income. In terms of implementation, for such policies
to be successful it seems important that they aim at encouraging the private sector to provide
training, while the government can help through certification and quality monitoring, rather
than at direct training provision by the public sector (cf. Acemoglu 2001; Heckman 2000).
Second, when combining the life cycle perspective with the fact that family background is a
crucial input into early learning and child development, adult learning activities aimed at
young parents may carry the additional benefit of improving the early educational
environments for children from otherwise disadvantaged backgrounds. Educational
involvement of low-educated parents during adulthood can reap the intergenerational gains of
improved early learning of their children, with all its subsequent dynamic effects (cf. Section
3.1 above), by improving the educational background of families. Unfortunately, empirical
knowledge about the extent to which such educational interventions at the parental level, like
30
the national plan targeted at illiterate parents in Italy in the 1970s, can be effective in an
intertemporal sense is largely missing.
Complementarity or trade-off:
Despite these countervailing features, the basic facts remain that returns to training seem
highest for the well-educated and that public training schemes aimed at low-skilled workers
have proven to be quite ineffective. Therefore, in general there seems to be a trade-off
between efficiency and equity at this late stage of the life cycle of education. At the level of
continuing training and adult learning, it seems that returns are highest for those who have
already obtained high degrees of education. By contrast, policies that try to target
programmes of continuing training and adult learning at disadvantaged people run into the
problem that the returns to these late investments may be particularly low among the
disadvantaged, so that alternative redistributive policies may be more efficient (cf., e.g.,
Bassanini et al. 2005). Therefore, it seems crucial that policies targeted at equity set in much
earlier, trying to improve the access to high-quality early childhood and school education for
students from disadvantaged families.
4. Conclusion
Ideally, a sound assessment of investment priorities at the margin would have to be
established on the basis of country-specific empirical assessments. Lacking encompassing
assessments for most Member States, it is still possible based on the available empirical
evidence to arrive at a broad pattern of priorities for educational investments as depicted in
Figure 1. The overall assessment of efficiency and equity in European education and training
systems suggests that there seem to be strong complementarities between efficiency and
equality of opportunity in policies that act at early stages of the education process. However,
these seem to turn into trade-offs between efficiency and equity at late stages of the education
life cycle. Thus, the earlier equity- and efficiency-enhancing policies set in, the better. If
Member States focus their public investments early on, improving the fates of disadvantaged
students in early childhood and at the school level, then they do not necessarily have to
choose between efficiency and equity. Only if they wait until students reach the age to enter
higher education or even continuing training and adult learning, their attempts to foster equity
sometimes end up being both inefficient and unfair.
Within the different stages of the education and training system, the evidence suggests that
the technical efficiency in educating both the disadvantaged and the student population at
large can best be promoted by leaving behind a simple input orientation in favour of an output
orientation. Such an output orientation can be achieved through institutional reforms that
focus incentives on the performance of students. By setting clear standards and monitoring
their achievement, while at the same time using the forces of choice and competition to find
the best ways of how to achieve the output goals, public policies can best ensure that every
person gets decent education and training.
Of course, as this paper has discussed in detail, the specific implementation of such policy
features will be different for each stage of the education cycle. At the stage of early childhood
education, an implementation aimed at educational intensity and accountability seems
advisable. In schools, combining accountability with autonomy and competition with public
funding, as well as setting performance-related rewards for teachers and de-tracking schools,
seem well-suited to advance efficiency and equity, especially when designed to target
disadvantaged students. Private competition coupled with tuition fees and income-contingent
loans designed also to help the most disadvantaged are recommendable features in higher
31
education, while competitive private provision on the job oriented towards market needs,
combined with public certification and quality monitoring, seem key in vocational education,
training and adult learning. In each case, policymakers have to take caution in designing and
implementing such output-oriented reforms in ways that induce proper and fair incentives for
all agents. By doing so, public policies can establish education and training systems that can
get very far in being both efficient and equitable at the same time. Given the importance of
education and training for the long-run economic and social well-being of individuals and
societies alike, such policies could also go a long way towards reaching goals of future
economic and social prosperity in Europe.
However, an important caveat is in order about these overall assessments of education and
training policies in Europe. Currently, far too little is known on the specifics of equity and
efficiency of different European programmes because of severe lacks of appropriate data and
rigorous empirical evaluation studies. This is particularly true for the details on how to best
advance learning in early childhood and how early advancements are sustained through the
life cycle, but also more generally at other stages of education and training. The particularly
positive assessment of early interventions may be based on too little and specific empirical
evidence which may not translate into very general findings in the end. Analyses that confront
the benefits of specific interventions with their costs are mostly missing in Europe.
To be able to implement better-informed policies to foster equity and efficiency in education
and training, Member States will have to design policy interventions in ways that are
amenable to rigorous empirical evaluation, collect the necessary data on inputs and outcomes
and implement independent evaluation studies that create knowledge on what works and what
does not. Such country-specific empirical assessments will be able to provide particularly
useful and robust findings if evaluators are involved in designing the policy ex ante, in order
to set up a convincing evaluation design. There could also be scope for ensuring that countryspecific
assessments are done in as standardised a way as possible to facilitate learning across
European systems, in particular when European institutions set up Europe-wide research
projects on international comparisons. Such an improved management of policy innovations
would enable a process of continuous learning and adaptation in European education and
training that could ultimately contribute much more to the causes of equity and efficiency
than many policy interventions have done in the past.
32
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