The paper reviews recent literature on the economics of migration and diasporas, focusing on economic gains and opportunities that these diasporas could represent for home countries. In addition, the paper discusses policies aimed at leveraging this "diaspora capital".

We argue that donors could improve the effectiveness of foreign aid by pursuing complementary and coherent non-aid policies. In particular, we hypothesize that aid from donors that are open to immigration has stronger growth effects than aid from closed donors. We estimate the aid-growth nexus...