Existing indices of ethnic diversity are generally based on pre-defined groups, disregarding the (dis)similarities between them. This paper proposes an index that includes the dissimilarity in language, ethno-racial characteristcs and religion between groups. The resulting distance-adjusted...

We use recent immigration data from 195 countries and propose an index of population diversity based on people's birthplaces. This new index is then decomposed into a size (share of foreign born) and a variety (diversity of immigrants) component and is available for 1990 and 2000 disaggregated...