Much of the recent literature on civil war treats explanations rooted in political and economic grievances with considerable suspicion, and many empirical studies conclude that there is no relationship between ethnic diversity or measures of inequality and political violence to support such...

This paper introduces the Non-State Actors in Armed Conflict Dataset (NSA), which contains detailed information on the state–rebel group dyads included in the Uppsala Conflict Data Project Dyadic Dataset. Existing quantitative studies generally focus on characteristics of countries and...