This paper develops a game-theoretic model of lobbying in which a politician sells access to interest groups. The politician sets an access fee, or the minimum contribution necessary to secure access, and an interest group that pays this fee can share verifiable evidence in favor of its...

This paper develops a model of political contributions in which a politician can either sell policy favors, or sell access. Access allows interest groups to share hard information with the politician in support of their preferred policy. Here selling access maximizes policy utility, while...

A principal must decide whether to implement each of two independent proposals (e.g., earmark requests, policy reforms, grant funding) of unknown quality. Each proposal is represented by an agent who advocates by producing evidence about quality. Although the principal prefers the...