My new book on The International Law of Economic Migration has just been published by the Upjohn Institute. For more information, see http://www.upjohninst.org/publications/titles/ilem.html
Here is the short description:
The gains from total trade liberalization, according to a recent World Bank study, are estimated at $155 billion annually while the gains from a 3 percent increase in the stock of migrants is $175 billion. Furthermore, these gains would be distributed more greatly to developing countries. No wonder thoughtful observers ask why liberalization of economic migration is not on the global agenda.
If a multilateral framework agreement existed within which states could negotiate specific liberalization commitments regarding immigration, it is likely that states could more easily unlock these welfare increases. It is also possible that enough additional welfare could be generated to compensate any workers in the destination state who are hurt, or to compensate the home state for any brain drain.
This volume examines the welfare economics, political economy, and legal experience in international economic migration, and on the basis of its analysis, suggests the structure of a multilateral framework agreement on international economic migration.