The recent literature on externalities of schooling in the U.S. is rather mixed: positive external effects of average education are hardly found at all, while often positive externalities from the share of college graduates are identified. This paper proposes a simple model to explain this fact...

"This paper estimates the effects of immigration on wages of native workers at the national U.S. level. Following Borjas (2003) we focus on national labor markets for workers of different skills and we enrich his methodology and refine previous estimates. We emphasize that a production function...

A series of recent influential papers has emphasized that in order to identify the wage effects of immigration one needs to consider national effects by skill level. The criticism to the so called ʺarea approachʺ is based on the fact that native workers are mobile and would eliminate, in the...

I show that a CES production-function-based approach with skill differentiation and integrated national labor markets has predictions for the employment effect of immigrants at the local level. The model predicts that if I look at the employment (rather than wage) response by skill to...

This paper uses census and survey data to identify the wage earning ability and the selection of recent Romanian migrants and returnees. We construct measures of selection across skill groups and estimate the average and the skill-specific premium for migration and return for three typical...