The H-1B program allows firms in the United States to temporarily hire high-skilled foreign citizens. H-1B workers are highly concentrated among a small number of firms. We develop a theoretical model demonstrating that this phenomenon is an artifact of policy design: When the government...

We document a new finding regarding changes in labor market outcomes for men and women in the US. Since 1980, conditional on being a college-educated man, the probability of working in a cognitive/high-wage occupation has fallen. This contrasts starkly with the experience for college-educated...

In this paper it is shown that by explicitly considering the existence of unemployed trained workers, some of the results shown by Acemoglu and Pischke regarding the effect of unemployment on the firms' training decisions become ambiguous. In fact, two contrasting effects have to be considered:...