We model a contest between two groups of equal population size over the division of a group-specific public good. Each …-group population. Any unilateral increase in fragmentation within a group reduces conflict and makes its opponent better off. The …

In this paper we present a conceptual framework linking cultural heterogeneity to inter-group conflict. When conflict … conflict is about rival goods, more similar groups are more likely to engage in war with each other. We formalize these ideas …

can promote cooperation through a combination of sorting and opportunistic signaling, with late period defections by … remains unclear. In each of six treatments that vary the cooperation premium and the informational basis for reputation …, that with a high cooperation premium and good information, investment in reputation grows across sets of finitely …

democratization, international openness, and conflict. It also reviews studies of political integration and disintegration that focus … discusses recent empirical studies that shed light on the relations among heterogeneity, conflict, and borders. This line of …

conflict. We model conflict using an inter-group Tullock contest, and measure its effects upon cooperation using a multi …-level public good game. We demonstrate that conflict increases cooperation within groups, while decreasing cooperation between …We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have …

conflict. We model conflict using an inter-group Tullock contest, and measure its effects upon cooperation using a multi …-level public good game. We demonstrate that conflict increases cooperation within groups, while decreasing cooperation between …We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have …