This book contributes to the current debate on migration policy, focusing on three main elements in the standard migration policy dialogue: the regulation of flows, the integration of immigrants and the impact of labour mobility on development. In particular it argues that the current governance of international migration is both insufficient and inefficient. Restrictive and non-cooperative migration policies not only affect development in sending countries but also have counterproductive effects in the countries that implement them. Likewise, the lack of integration policies generates costs for society. In this respect, the book focuses on South-South migration and highlights the specific risks of neglecting integration in developing countries. It also analyses the effects of emigration on origin-country labour markets and underlines the externalities of immigration policies in migrant-sending countries. The book explores the feasibility of implementing a coherent governance framework centred on three complementary objectives: i) a more flexible regulation of international migration flows; ii) a better integration of immigrants in developing countries; and iii) a higher impact of labour mobility on development.