The brain drain

"This paper uses U.S. Census data from 1990 and 2000 to provide evidence on the labor market characteristics of European-born workers living in the US. It is found that there is a positive wage premium associated with these workers, and that the highly skilled are over-represented compared with the source country, more so when one moves up the skill ladder"--Forschungsinstitut zur Zukunft der Arbeit web site.