Now showing 1 - 3 of 3
- PublicationSchool tenure and student achievement(University College Dublin. School of Economics, 2011-11)While much empirical work concerns job tenure, this paper introduces the concept of school tenure -- the length of time one student has been in a given school. I examine whether and how school tenure impacts students’ output using rich cohort data on England’s secondary schools. Ordinary Least Squares (OLS) estimates suggest that, on average, students benefit from longer own school tenure but suffer from that of their peers. Using the number of times the student moved school during the academic year as an instrument for school tenure to deal with potential endogeneity, the resulting Two-Stage Least Squares (TSLS) estimates suggest the effects of school tenure are positive and heterogeneous across students. While advantaged students are more likely to gain from own longer school tenure, disadvantaged ones are benefit if their peers have longer tenure.
- PublicationEstimating the return to college in Britain using regression and propensity score matching(University College Dublin. School of Economics, 2011-09)College graduates tend to earn more than non-graduates but it is difficult to ascertain how much of this empirical association between wages and college degree is due to the causal effect of a college degree and how much is due to unobserved factors that influence both wages and education (e.g. ability). In this paper, I use the 1970 British Cohort Study to examine the college premium for people who have a similar ability level by using a restricted sample of people who are all college eligible but some never attend. Compared to using the full sample, restricting the sample to college-eligible reduces the return to college significantly using both regression and propensity score matching (PSM) estimates. The finding suggests the importance of comparing individuals of similar ability levels when estimating the return to college.
- PublicationEstimating the External Returns to Education: Evidence from ChinaGood understanding on the human capital externalities is important for both policy makers and social science researchers. Economists have speculated for at least a century that the social returns to education may exceed the private returns. In this paper, using the longitudinal data from China Health and Nutrition Survey (CHNS), we examine how individual wage changes associated with the share of college graduates in the same province across years for a person who has never moved by implementing individual fixed effects estimates. The individual fixed effect model shows that the external returns to education in China appear to be negative and on the order of -2%, which might be biased by potential endogeneity. Concerned with this problem, we then implement the IV fixed effect estimates and find positive external returns to education at about 10%. We also find this returns differ across individual heterogeneity.