Jarrell (1978) found that electricity prices rose in states that adopted state regulation before 1917, suggesting that regulators were "captured" by the interests of the regulated electric utilities. An alternative explanation is that state regulation more credibly protected specialized utility...

When an individual’s health status is observable, but evolving over time, the key to maintaining a successful health insurance arrangement is to have the healthier members of the group cross-subsidize those who experience adverse health outcomes. We argue that impediments to worker mobility...

Hart & Moore (1999) construct a model to show that contracts perform poorly when the state of the world is unverifiable and renegotiation cannot be ruled out. They implicitly assume that one player can extort payment from another by threatening to take an inefficient action which hurts both of...