The Political Economy of Heterogeneity and Conflict
We present a conceptual framework linking cultural heterogeneity to inter-group conflict.
When conflict is about control of public goods, more heterogeneous groups are expected to fight
more with each other. In contrast, when conflict is about rival goods, more similar groups are
more likely to engage in war with each other. We formalize these ideas within an analytical
model and discuss recent empirical studies that are consistent with the model’s implications.