We examine collaboration patterns of foreign scientists working in one of 16 countries in 2011 and compare them to the collaboration patterns of nonmigrant scientists and scientists with some international experience who have returned. Data come from the GlobSci survey. Major findings are that...

Migrant scientists outperform domestic scientists. The result persists after instrumenting migration for reasons of work or study with migration in childhood to minimize the effect of selection. The results are consistent with theories of knowledge recombination and specialty matching.

We investigate performance differentials associated with mobility for research active scientists residing in a broad spectrum of countries and working in a broad spectrum of fields using data from the GlobSci survey. We distinguish between two categories of mobile scientists: (1) those studying...

We analyze the decisions of foreign-born PhD and postdoctoral trainees to come to the United States vs. go to another country for training. Data are drawn from the GlobSci survey of scientists in sixteen countries working in four fields. We find that individuals come to the U.S. to train because...