I consider transactions involving asymmetric prisoners dilemmas between pairs of players selected chosen from two large populations. Games are played repeatedly, but information about cheating is not adequate to sustain cooperation, and there is no official legal system of contract enforcement....

We consider the political economy of a monetary union wheremember governments attempt to influence the policy of the commoncentral bank. Modeling this as a common agency with incentivecontracts, we show that if incentives are all that matters for the bank,the equilibrium implements a weighted...

Failures of government policies often provoke opposite reactions from citizens; some call for a reversal of the policy while others favor its continuation in stronger form. We offer an explanation of such polarization, based on a natural bimodality of preferences in political and economic...

In any non-trivial state, policies decided at the top levels of government are administered by middle-level bureaucrats. I examine whether this agency problem can contribute to explaining state failure in matters of provision of public goods. I find some theoretical arguments to support the view...

The paper argues that to achieve compliance of firms with regulations such as product quality or environmental or health standards it is better to have industries with a few large corporations than numerous small firms. A model is constructed to show that limited liability constraints bind more...

We develop a model of common agency with complete information and general preferences with nontransferable utility, and we prove that the principals' Nash equilibrium in truthful strategies implements an efficient action. We apply this theory to the construction of a positive model of public...

This paper analyses optimal irreversible investment policy when profits are subject to a multiplicative geometric Brownian motion shock. The marginal product of capital is increasing initially and decreasing thereafter. In the latter range, optimal policy is familiar: capacity is added gradually...