This article focuses on the debate about the developmental impact of migration on the sending countries. Throughout the post-World War II period, temporary labour migration has been promoted as a path to development. Remittances have grown to rival or surpass official development assistance and have increased living standards in the sending countries. However, the evidence over time is that the remittances do not lead to development or even to higher incomes that are sustainable without further migration. Some determinedly temporary labour migration schemes offer promise.