Over the second half of the 20th century, conflicts within national boundaries became
increasingly dominant. One-third of all countries experienced civil conflict. Many (if not most) …

The empirical evidence on the economic impacts of diversity is mixed. Many studies in the
literature present context‐dependent and data‐driven results which are challenging to …

This article studies the global variation in economic preferences. For this purpose, we
present the Global Preference Survey (GPS), an experimentally validated survey data set of …

We construct new series for common native language and common spoken language for
195 countries, which we use together with series for common official language and linguistic …

We use a population resettlement program in Indonesia to identify long-run effects of
intergroup contact on national integration. In the 1980s, the government relocated two …

We examine empirically the impact of ethnic divisions on conflict, by using a specification
based on Esteban and Ray (2011). That theory links conflict intensity to three indices of …

We examine the relationship between immigration and preferences for redistribution in
Europe using a newly assembled dataset of immigrant stocks for 140 regions in 16 Western …

We investigate the empirical relationship between ethnicity and culture, defined as a vector
of traits reflecting norms, values, and attitudes. Using survey data for 76 countries, we find …

We construct a matrix showing the share of the year 2000 population in every country that is
descended from people in different source countries in the year 1500. Using the matrix to …

Arguments about how ethnic diversity affects governance typically posit that groups differ
from each other in substantively important ways and that these differences make effective …