Choosing Whom to Trust: Agency Risks and Cabinet Partisanship in Presidential Democracies.

Presidential cabinets include on average more nonparty ministers than governments in any other form of democracy, and critics of presidentialism have argued that this compromises representativeness, accountability, and governability. Yet cabinet partisanship in presidential democracies remains poorly understood. Existing studies argue that the partisan composition of cabinets reflects the degree to which presidents prioritize building legislative support. We demonstrate that a better understanding of government formation requires attention to a second dimension of choice: agency risks. Focusing on the relationship between presidents and their own parties, which is at the core of every presidential government, we show that party-affiliated ministers are not always reliable agents for presidents and that presidents appoint nonpartisan ministers to limit agency loss. We test this argument using original data on the partisanship of single-party cabinets in 12 Latin American countries and find support for the key claims. [ABSTRACT FROM AUTHOR]