I study the trade-off between private and verifiable interim performance evaluations under uncertainty. More uncertainty leads to higher agency costs if the interim evaluation is public and verifiable but lower agency costs if the interim evaluation is private and unverifiable.

A growing literature analyzes revenue-maximizing contracts for situations in which agents can acquire private information before they decide whether to join the contract. It is conjectured that the results also apply to the more natural scenario where information can be acquired either before or...