On the Effectiveness of Liability Rules when Agents Are Not Identical.

This paper is about accidents involving two risk-neutral parties. Both parties engage in actions that are profitable but affect the magnitude of possible bilateral accidents. The authors analyze how the action choices can be decentralized by liability rules that assign the accident costs. If the authors allow for punitive damages, they can implement the first-best actions by a liability rule even if agents are not identical. Under this liability rule, some individuals may be in expectation better off in the event of an accident than in the event of no accident. The authors provide conditions under which this problem does not arise. Copyright 1991 by The Review of Economic Studies Limited.