I study the optimal audit mechanism when the principal cannot commit to an audit strategy. Invoking a relevation principle, the agent reports her type to a mediator whi assigns contracts and recommends the principla whether to audit. For each reported type the mediator randomizes over a...

This paper provides new analytical tools for studying principal-agent problems with adverse selection and limited commitment. By allowing the principal to use general communication devices we overcome the literature's common, but overly restrictive focus on one-shot, direct communication. In...

A unilateral policy intervention by a country (such as the introduction of an emission price) can induce firms to relocate to other countries. We analyze a dynamic game where a regulator offers contracts to avert relocation of a firm in each of two periods. The firm can undertake a...

In a globalized economy, firms move production to other countries without turning a hair. A local policy maker who seeks to avert relocation faces a dynamic problem - incentivizing the firm to remain in its home country today does not guarantee that the firm also stays in the future. We...

The unilateral introduction of an emissions price can induce firms to relocate to other countries with less stringent environmental regulation. However, firms may be able to reduce the emissions costs in their home country by investing into low-carbon technologies or equipment (abatement...