This paper examines effects of the U.S. Immigration Act of 1990 on STEM (science, technology, engineering, and mathematics) degree completion and labor market outcomes for native-born Americans. The Act increased the in-flow and stock of foreign STEM workers in the U.S., both by increasing green...

This paper provides new evidence on the nature of occupational differences in unemployment dynamics, which is relevant for the debate between the structural or hysteresis hypotheses. We develop a procedure that permits us to test for the presence of a structural break at unknown date. Our...

This study provides the first nation-wide analysis of the labor market implications of occupational licensing for the U.S. labor market, using data from a specially designed Gallup survey. We find that in 2006, 29 percent of the workforce was required to hold an occupational license from a...