This paper provides an overview of the literature on four key issues surrounding the international mobility of skilled workers, while identifying potential directions for future research.
Geography
Link
http://ideas.repec.org/cgi-bin/get_doc.pl?urn=RePEc:wpa:wuwpit:0507004&url=http://econwpa.wustl.edu:8089/eps/it/papers/0507/0507004.pdf