Journal of Conflict Resolution, Vol. 50, page(s): 3-27
A growing number of international relations scholars argue that intergovernmental organizations (IGOs) promote peace. Existing approaches emphasize IGO membership as an important causal attribute of individual states, much like economic development and regime type. The authors use social network analysis to show that IGO memberships also create a disparate distribution of social power, significantly shaping conflicts between states. Membership partitions states into structurally equivalent clusters and establishes hierarchies of prestige in the international system.