@techreport{NBERw12125, title = "On the Theory of Ethnic Conflict", author = "Francesco Caselli and Wilbur John Coleman II", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "12125", year = "2006", month = "March", URL = "http://www.nber.org/papers/w12125", abstract = {We present a theory of ethnic conflict in which coalitions formed along ethnic lines compete for the economy%u2019s resources. The role of ethnicity is to enforce coalition membership: in ethnically homogeneous societies members of the losing coalition can defect to the winners at low cost, and this rules out conflict as an equilibrium outcome. We derive a number of implications of the model relating social, political, and economic indicators such as the incidence of conflict, the distance among ethnic groups, group sizes, income inequality, and expropriable resources.}, }