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Difference-in-differences (DID) is a method to evaluate the effect of a treatment. In its basic version, a “control group” is untreated at two dates, whereas a “treatment group” becomes fully treated at the second date. However, in many applications of the DID method, the treatment rate only increases more in the treatment group. In such fuzzy designs, a popular estimator of the treatment effect is the DID of the outcome divided by the DID of the treatment. We show that this ratio identifies a local average treatment effect only if the effect of the treatment is stable over time, and if the effect of the treatment is the same in the treatment and in the control group. We then propose two alternative estimands that do not rely on any assumption on treatment effects, and that can be used when the treatment rate does not change over time in the control group. We prove that the corresponding estimators are asymptotically normal. Finally, we use our results to reassess the returns to schooling in Indonesia.

We study how high school majors affect adult earnings using a regression discontinuity design. In Sweden students are admitted to majors in tenth grade based on their preference rankings and ninth grade GPA. We find engineering, natural science, and business majors yield higher earnings than social science and humanities, with major-specific returns also varying based on next-best alternatives. There is either a zero or a negative return to completing an academic program for students with a second-best nonacademic major. Most of the differences in adult earnings can be attributed to differences in occupation, and to a lesser extent, college major.

This paper uses an unusual pay reform to test the responsiveness of investment in schooling to changes in redistribution schemes that increase the rate of return to education. We exploit an episode where different Israeli kibbutzim shifted from equal sharing to productivity-based wages in different years and find that students in kibbutzim that reformed earlier invested more in high school education and, in the long run, also in post-secondary schooling. We further show that the effect is mainly driven by students in kibbutzim that reformed to a larger degree. Our findings support the prediction that education is highly responsive to changes in the redistribution policy.

The expan sion of women’s educational attainment may seem to be a promising path toward achieving economic equality between men and women, given the consistent rise in the economic value of higher education. Using yearly data from 1980 to 2017, we provide an updated and comprehensive examination of the gender gap in education premiums, showing that it is not as promising as it could and should be. Women receive lower rewards to their higher education across the entire wage distribution, and this gender gap increases at the very top education premiums—the top quarter and, even more so, the top decile. Moreover, insufficient theoretical and methodological attention to this top premium effect has left gender inequality concealed in the extensive empirical studies on the topic. Specifically, when we artificially censor the top at the 80th wage percentile, the gender gaps in education premium reverse. Lastly, the growth in earnings inequality in the United States, which is greatly affected by the expansion of top earnings, is associated with the growing gender gap in education premiums over time. We discuss the meaning and implications of this structural disadvantage at a time when women’s educational advantage keeps growing and higher education remains the most important factor for economic attainment.

Pandemic shocks disrupt human capital accumulation through schooling and work experience. This study quantifies the range of the long-term economic impact of these disruptions in the case of the COVID-19 pandemic, focusing on countries at different levels of development and using returns to education and experience by college status that are globally estimated using 1084 household surveys across 145 countries. We find that: (1) Both lost schooling and experience can contribute to significant losses in global learning and output; and (2) Developed countries incur greater losses than developing countries, because they have more schooling to start with and higher returns to experience. In addition, the returns to education and experience are separately estimated for men and women, to explore the differential effects by gender of the COVID-19 pandemic. While we uncover gender differences in returns to education and experience, gender differences in the impact of COVID-19 through human capital accumulation are small. The methodology employed in this study is easily implementable for future pandemics.

We document and analyse the wage gap between vocational and general secondary education in Portugal between 1994 and 2013. As Portuguese workers have been educated in different school systems, we have to distinguish between birth cohorts. Analysing the wage gaps within cohorts, we find no support for either the human capital prediction of crossing wage profiles or the hypothesis that general graduates increasingly outperform vocational graduates in late career.We discover that the lifecycle wage profiles have shifted over time. We link the pattern of shifting cohort profiles to changes in the school system and in the structure of labour demand. We conclude that assessing the relative value of vocational education requires assessing how the vocational curriculum responds to changes in economic structure and technology. We show that the decline in assortative matching between workers and firms has benefited vocationally educated workers.

Using a national level sample survey on labour market in India, we analyze the role of education–occupation (mis-)match (EOM) in explaining within-group dispersion in returns to education. Applying a double sample selection bias correction and Mincerian quantile wage regression estimation, the analysis reveals interesting findings. First, on average, overeducated workers suffer a wage penalty of 7% and undereducated workers do not receive a wage reward as compared to their adequately educated counterparts. Second, the inclusion of match status reduces within-education group dispersion in returns. The finding highlights that ignoring EOM and thus, adopting a restrictive view of similarity across workers may lead to overestimation of the within-education group dispersion in returns. This study argues for focusing on EOM to increase both pecuniary and social benefits of education in terms of productivity gains and wages as well as to reduce wage dispersion.

We show that grit, a skill that has been shown to be highly predictive of achievement, is malleable in childhood and can be fostered in the classroom environment. We evaluate a randomized educational intervention implemented in two independent elementary school samples. Outcomes are measured via a novel incentivized real-effort task and performance in standardized tests. We find that treated students are more likely to exert effort to accumulate task-specific ability and hence more likely to succeed. In a follow up 2.5 years after the intervention, we estimate an effect of about 0.2 standard deviations on a standardized math test.

For decades, prominent members of the accounting community have argued that the quality of accounting education is falling. Support for this claim is limited because of a scarcity of data characterizing the constructs of interest. This study is a comparative evaluation of the quality of accounting education from the 1970s to the 2000s using unique data to quantify education quality for accounting and many comparison disciplines. I find that, compared to most other types of college education, accounting education quality has been steady or increasing over the sample period. However, relative to other business degree programs, the evidence is mixed. The quality of students self-selecting non-accounting business degrees has increased while the quality of accounting students has not. The disparity in student quality is not reflected in the pay received by accounting graduates, which has remained stable relative to the pay received by graduates with other business degrees, although this result is likely influenced by regulatory changes during the 2000s, including Sarbanes-Oxley (SOX). Together, the evidence suggests that the quality of accounting education has not declined rapidly over the last four decades, but in the competition among business degree programs for high-quality students, accounting has underperformed.

In the four decades since 1980, US colleges and universities have seen the number of students from abroad quadruple. This rise in enrollment and degree attainment affects the global supply of highly educated workers, the flow of talent to the US labor market, and the financing of US higher education. Yet, the impacts are far from uniform, with significant differences evident by level of study and type of institution. The determinants of foreign flows to US colleges and universities reflect both changes in student demand from abroad and the variation in market circumstances of colleges and universities, with visa policies serving a mediating role. The consequences of these market mechanisms impact global talent development, the resources of colleges and universities, and labor markets in the United States and countries sending students.