We study how licensing, certification and unionisation affect the wages of natives and migrants and their representation among licensed, certified, and unionized workers. We provide evidence of a dual role of labor market institutions, which both screen workers based on unobservable...

Twelve U.S. states, plus the District of Columbia, have recently enacted measures granting undocumented immigrants access to driving licenses. We exploit the state and temporal variation in the issuing of state driving licenses to undocumented immigrants to estimate its impact on these...