Humans often mate with those resembling themselves, a phenomenon described as positive
assortative mating (PAM). The causes of this attract broad interest, but there is little …

Emigration first increases and then decreases as a country experiences economic
development. This inverted U-shaped, cross-sectional relationship between emigration and …

We use de-identified data from Facebook to construct a new and publicly available measure
of the pairwise social connectedness between 170 countries and 332 European regions. We …

Composing Peace: Mission Composition in UN Peacekeeping is about mission composition
in peacekeeping operations and asks how diversity of mission composition influences the …

We build a new database documenting the evolution of physician migration over a period of
25 years (1990–2014), and use it to empirically shed light on its determinants. In relative …

We revisit the relationship between ancestral distance and barriers to the diffusion of
development by replicating previous results with a new genomic dataset on human …

We study the relationship between ethnicity, occupational choice, and entrepreneurship.
Immigrant groups in the United States cluster in specific business sectors. For example …

This paper empirically investigates the impact of birthplace diversity on economic growth.
We use panel data on US states over the 1960–2010 period. This rich data set allows us to …

This article empirically investigates whether emigrants from MENA (Middle East and North
Africa) countries self-select along two cultural traits: religiosity and gender-egalitarian …

The present paper evaluates the effect of the cultural trait “individualism” on opportunity
entrepreneurship, using cross-country data from the Global Entrepreneurship Index (GEI) …