Document Type



Forthcoming in University of Chicago L Rev.


In stark contrast to areas such as trade and investment, international cooperation on migration is scant. The lack of cooperation is puzzling given the important international externalities associated with national immigration policies. This paper identifies the relevant externalities, and suggests why cooperation is nevertheless difficult to achieve. It also offers an explanation for the one form of cooperation that we do observe with some regularity, namely, international agreements permitting the temporary movement of certain classes of workers.

Date of Authorship for this Version