I. Theoretical Models.- A Microeconomic Model of Migration.- Migration and International Factor Price Equalization.- II. Performance of Migrants.- Savings and Remittances: Guestworkers in West Germany.- III. Effects of Emigration on the Sending Country.- The Impact of International Labor Migration for Turkey.- IV. Migration Within Developing Countries.- Rural -Urban Migration. On the Allocation of Risks in Developing Countries.- Place of Birth and Past Place of Residence in South Korea: Methodological Considerations for Migration Research.- V. Immigration Policy.- Migration Pressure in Germany: Past and Future.- The Economic Consequences of Selective Immigration Policies.- List of Contributors.