In a principal–agent model with moral hazard, a signal about the principalʼs technology — the stochastic mapping from the agentʼs action to the outcome — is observed before the contract is offered. The signal is either uninformative (null information), informative and observed only by...

We consider the problem of mechanism design by a principal who has private information. We point out a simple condition under which the privacy of the principal's information is irrelevant in the sense that the mechanism implemented by the principal coincides with the mechanism that would be...

We examine a principal-agent model with moral hazard in which the technology – the vector of probability distributions from the agent’s actions to the possible outcomes – is initially unknown. A signal correlated with the technology is observed after the principal and agent agree to the...

In a principal-agent environment with moral hazard and symmetric information, having or acquiring a more informative technology lowers the cost to implement a given action. Contracting may occur after or before the principal learns her technology. We show that when the principal has or will...