Migration decisions affect those left-behind in ways that are partly taken into account by market forces (e.g., wage effects on labour markets) and for the most part these can be seen as pure externalities. Diasporas are an example of such an externality. This paper reviews the recent economic...

International migration analysis often focuses on mass migration rather than on the international mobility of elites, which is the focus of this paper. The paper offers a three-fold classification of elites: (a) knowledge elites, (b) entrepreneurial elites and (c) political elites. We explore...