This volume draws on a rich set of data and institutional analysis to present findings on the impact of migration on the economies of both migrant-sending and migrant-receiving countries in the East Asia and Pacific region. The papers point out that due to demographic trends in the region, managing migration is not a matter of choice but one of necessity, and that while migration has significant and positive impact there are also important policy issues that need to be addressed to enhance migration's development impact and realize its full potential. This book comprises background papers written for a companion World Bank volume, International Migration and Development in East Asia and the Pacific. The authors are leading researchers on migration and development from different countries of the region.