Birthplace Diversity and Economic Prosperity. Alberto Alesina, February 2015, Paper. “We propose an index of population diversity based on people’s birthplaces and decompose it into a size (share of foreign-born) and a variety (diversity of immigrants) component. We show that birthplace diversity is largely uncorrelated with ethnic, linguistic or genetic diversity and that the diversity of immigration relates positively to measures of economic prosperity. This holds especially for skilled immigrants in richer countries at intermediate levels of cultural proximity. We partly address endogeneity by specifying a pseudo-gravity model predicting…” Link