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 …

deviation of 135. We deal with endogeneity concerns by using historical migration networks to instrument for stocks of migrant …

. We find that the elasticity of exports to return migration is between 0.1 to 0.24 in industries where migrants were …

The paper reviews recent literature on the economics of migration and diasporas, focusing on economic gains and …