This paper provides the first evidence that value-added education accountability schemes induce dynamic distortions. Extending earlier dynamic moral hazard models, I propose a new test for ratchet effects, showing that classroom inputs are distorted less when schools face a shorter horizon over...

Disputes over penalties for breach of contract are often solved in court. A simple model shows how inefficient courts may induce public buyers to refrain from enforcing penalties for late delivery to avoid litigation, inducing sellers to delay. Using a large dataset on Italian public...

The law often lays down mandatory rules, from which the parties may deviate in favor of one party but not the other. Examples include the invalidation of high liquidated damages and the unenforceability of excessive non-compete clauses in employment contracts. In these cases, the law may...