Since the end of World War II, occupational licensing has been one of the fastest growing labor market institutions in the developed world. The economics literature suggests that licensing can influence wage determination, the speed at which workers find employment, pension and health benefits,...

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...