Large international differences in the price of labor can be sustained by differences between workers, or by natural and policy barriers to worker mobility. We use migrant selection theory and evidence to place lower bounds on the ad valorem equivalent of labor mobility barriers to the United...

For decades, migration economics has stressed the effects of migration restrictions on income distribution in the host country. Recently the literature has taken a new direction by estimating the costs of migration restrictions to global economic efficiency. In contrast, a new strand of research...

The incredibly low levels of learning and the generally dysfunctional public sector schooling systems in many (though not all) developing countries are the result of a capability trap (Pritchett et al. 2010). Two phenomena reinforce persistent failure of schooling systems to produce adequate...