This study uses a model of comparative advantage to model the choice of workers into three broad occupations. The pursuit of comparative advantage is shown to reduce the level of inequality from what would occur in a random assignment of workers into occupations. However, after pricing the...

Most research on the relationship between teacher characteristics and pupil achievement focuses on salaries, experience, and education. The effect of in-service training has received less attention. We estimate the effect of in-service teacher training on achievements in Jerusalem elementary...

This study evaluates the short-term effects of a remedial education program that provided additional instruction to underperforming high school students in Israel. The intervention prepared students for the matriculation exams. Using a comparison group of schools that enrolled in the program...

Until 1983, the language of instruction for most subjects in grades six and above in Moroccan public schools was French. Beginning in 1983, the language of instruction for new cohorts of Moroccan sixth graders was switched to Arabic. The authors use this policy change to estimate the effect of...

We study ability peer effects in English secondary schools using data on four cohorts of students taking age-14 national tests and measuring peers’ ability by prior achievements at age 11. Our identification is based on within-pupil regressions exploiting variation in achievements across three...

This article presents evidence on the child-quantity/child-quality trade-off using quasi-experimental variation due to twin births and preferences for a mixed sibling sex composition, as well as ethnic differences in the effects of these variables. Our sample includes groups with very high...