This article analyzes the relationship between partisan heterogeneity and cooperation in international organizations. We argue that partisan heterogeneity increases distributional conflict among states during intergovernmental negotiations, thereby increasing the costs of cooperation. This...

Donors often condition foreign aid to recipients on policy adjustments. How do domestic interest groups influence a donor’s ability to credibly commit to implementing threats and promises? In our model, domestic interest groups in the donor country can mobilize to support the...

The conventional wisdom emphasizes agency slack or bias as the central problem of international delegation. I show that the possibility of a unilateral influence contest is equally problematic. States can exert unilateral influence on autonomous international bureaucrats, either through rewards...

Powerful states often accept unanimity voting on accession to international institutions, even though this enables weak states to blackmail powerful states into providing costly side payments. Whereas the literature attributes this choice mainly to efforts to bolster the legitimacy of...