This review article summarises the literature on the relations between states and their diaspora. Policy-makers are struggling to know how best to respond to and possibly harness the potential of kindred communities abroad. The article outlines a wide spectrum of policy initiatives and categorises them into three groups: economic, political and socio-cultural. Five economic, four political and two socio-cultural factors are discussed as are a wide variety of implementation strategies evident in different jurisdictions. Though the focus is on Asia, examples have been chosen from locations worldwide. Academically, the article identifies the empirical and conceptual deficiencies in studies on diaspora strategies.