Exploiting a novel geo-referenced data set of population diversity across ethnic groups, this research advances the hypothesis and empirically establishes that variation in population diversity across human societies, as determined in the course of the exodus of humans from Africa tens of...

Security sector reform (SSR) is central to the democratic transitions currently unfolding across the globe, as a diverse range of countries grapple with how to transform militias, tribal forces, and dominant military, police, and intelligence agencies into democratically controlled and...

Coups and regime transitions are events that typically are intended to change the basic institutional framework of a country. Which specific policies change and the consequences of these changes nevertheless remains largely unknown. Change after a coup or transition implies that some form of...