focus on migration. The fact that knowledge diffusion requires direct human interaction implies that the international … diffusion of knowledge should follow the pattern of international migration. This is what this paper documents. Our main finding … is that migration, and particularly skilled immigration, is a strong and robust driver of productive knowledge diffusion …

focus on migration. The fact that knowledge diffusion requires direct human interaction implies that the international … diffusion of knowledge should follow the pattern of international migration. This is what this paper documents. Our main finding … is that migration, and particularly skilled immigration, is a strong and robust driver of productive knowledge diffusion …

recent US data on migration rates by education levels (Carrington and Detragiache, 1998), we find empirical support for the … countries combining low levels of human capital and low migration rates of skilled workers tend to be positively affected by the … brain drain. By contrast, the brain drain appears to have negative growth effects in countries where the migration rate of …