This is a collection of research papers, directed by Ninna Nyberg Sorensen. The aim of this collection is to show through selected case studies, the diversity of potential contributions of diasporas to the development of both their home and destination countries. The research presented in this volume shows how the conditions of migration and integration in the host societies can impact on diasporas’ contributions to development and thus more globally how conditions under which migration takes place determine the development impact of migration.