We study the contribution of foreign science and engineering talent to the creation of new knowledge in the U.S. economy using panel data on 2300 science and engineering (S&E) departments at 100 large American universities from 1973 to 1998. We use macroeconomic shocks and policy changes in...

We discuss the policy questions and debate surrounding the role of international (foreign-born) graduate students in the productivity of universities, particularly in the United States. Concerns about national security have induced U.S. immigration authorities to limit the number of foreign...