Posted Content•
The causal effect of education on earnings
TL;DR: This paper surveys the recent literature on the causal relationship between education and earnings and concludes that the average (or average marginal) return to education is not much below the estimate that emerges from a standard human capital earnings function fit by OLS.
Abstract: This paper surveys the recent literature on the causal relationship between education and earnings. I focus on four areas of work: theoretical and econometric advances in modelling the causal effect of education in the presence of heterogeneous returns to schooling; recent studies that use institutional aspects of the education system to form instrumental variables estimates of the return to schooling; recent studies of the earnings and schooling of twins; and recent attempts to explicitly model sources of heterogeneity in the returns to education. Consistent with earlier surveys of the literature, I conclude that the average (or average marginal) return to education is not much below the estimate that emerges from a standard human capital earnings function fit by OLS. Evidence from the latest studies of identical twins suggests a small upward "ability" bias -- on the order of 10%. A consistent finding among studies using instrumental variables based on institutional changes in the education system is that the estimated returns to schooling are 20-40% above the corresponding OLS estimates. Part of the explanation for this finding may be that marginal returns to schooling for certain subgroups -- particularly relatively disadvantaged groups with low education outcomes -- are higher than the average marginal returns to education in the population as a whole.
Citations
More filters
Posted Content•
TL;DR: Wage-differentials by education of men and women are examined from African household surveys to suggest private wage returns to schooling as discussed by the authors, and it is commonly asserted that returns are highest at primary school levels and decrease at secondary and postsecondary levels.
Abstract: Wage-differentials by education of men and women are examined from African household surveys to suggest private wage returns to schooling. It is commonly asserted that returns are highest at primary school levels and decrease at secondary and postsecondary levels, whereas private returns in six African countries are today highest at the secondary and post secondary levels, and rates are similar for women as for men. The large public subsidies for postsecondary education in Africa, therefore, are not needed to motivate students to enroll, and those who have in the past enrolled in these levels of education are disproportionately from the better-educated families. Higher education in Africa could be more efficient and more equitably distributed if the children of well-educated parents paid the public costs of their schooling, and these tuition revenues facilitated the expansion of higher education and financed fellowships for children of the poor and less educated parents.
176Â citations
TL;DR: The authors overview the use of field experiments in labor economics and highlight the central advantages of using economic theory to design the null and alternative hypotheses; engineering exogenous variation in real world economic environments to establish causal relations and learn about the underlying mechanisms; and engaging in primary data collection and often working closely with practitioners.
Abstract: We overview the use of field experiments in labor economics. We showcase studies that highlight the central advantages of this methodology, which include: (i) using economic theory to design the null and alternative hypotheses; (ii) engineering exogenous variation in real world economic environments to establish causal relations and learn about the underlying mechanisms; and (iii) engaging in primary data collection and often working closely with practitioners. To highlight the potential for field experiments to inform issues in labor economics, we organize our discussion around the individual life cycle. We therefore consider field experiments related to the accumulation of human capital, the demand and supply of labor, and behavior within firms, and close with a brief discussion of the nascent literature of field experiments related to household decision making.
174Â citations
TL;DR: In this paper, the impact of child labor on academic achievement was investigated using data on third and fourth graders in nine Latin American countries. But, the results showed that children working 1 standard deviation above the mean have average scores that are 16 percent lower on mathematics examinations and 11 percent higher on language examinations.
Abstract: Child labors effect on academic achievement is estimated using unique data on third and fourth graders in nine Latin American countries. Cross country variation in truancy regulations provides an exogenous shift in the ages of children normally in these grades, providing exogenous variation in the opportunity cost of children's time. Least squares estimates suggest that child labor lowers test scores, but those estimates are biased toward zero. Corrected estimates are still negative and statistically significant. Children working 1 standard deviation above the mean have average scores that are 16 percent lower on mathematics examinations and 11 percent lower on language examinations, consistent with the estimates of the adverse impact of child labor on returns to schooling.
173Â citations
TL;DR: In this paper, the authors propose an alternative test based on changes in education incentives caused by changes in the minimum school leaving age in the 1970s, and find that UK data appear to strongly support the human capital explanation.
Abstract: Education has an important effect on wages but it not clear whether this is because education raises productivity or because education is simply a signal of ability. We implement a number of existing tests for discriminating between these two explanations and find that they do not support the signalling hypothesis. However, we have severe reservations about these results and we propose an alternative test based on changes in education incentives caused by changes in the minimum school leaving age in the 1970s. Using this idea we find that UK data appear to strongly support the human capital explanation.
169Â citations
TL;DR: In this paper, the authors show that the length of compulsory education has a causal impact on regional labour mobility and conclude that part of the US-Europe difference in labour mobility is likely to be due to differences in levels of education in the respective regions.
Abstract: We show that the length of compulsory education has a causal impact on regional labour mobility. The analysis is based on a quasi-exogenous staged Norwegian school reform, and register data on the whole population. Based on the results, we conclude that part of the US-Europe difference, as well as the European North-South difference in labour mobility, is likely to be due to differences in levels of education in the respective regions.
169Â citations