"Building on a new data set which is constructed from a combination of national micro-data bases, we highlight differences in the structure of migrants to four countries – namely, France, Germany, the UK and the US – which receive a substantial share of all immigrants to the OECD world. Looking at immigrants by source country, we illustrate the important role of distance, both geographical and cultural, immigration policies and migrant networks. Differentiating immigrants by their educational attainments, we observe interesting patterns in the skill composition, employment opportunities and wages of migrants to the different destination countries. Focusing on migration between the four countries in our data set, we find that migration within western Europe is small and rather balanced in terms of skill structures, while there appears to be a brain drain from Europe to the US."

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