Bullying is a behavioral phenomenon that has received increasing attention in recent times. This paper uses a structural model with latent skills and longitudinal information from Korean youths to identify the determinants and effects of bullying. We find that, unlike cognitive skills,...

Gender disparities in academic performance may be driven in part by the interaction of teacher and student gender, but systematic sorting of students into classrooms makes it difficult to identify causal effects. We use the random assignment of students to Korean middle school classrooms and...

Are workers in modern economies working "too hard"--would they be better off if an equilibrium with fewer work hours were achieved? We examine changes in life satisfaction of Japanese and Koreans over a period when hours of work were cut exogenously because employers suddenly faced an overtime...