I show that stochastic contracts generate powerful incentives when agents suffer from probability distortion. When … implementing these contracts, the principal can target probability distortions in order to inflate the agent's perceived benefits … of exerting high levels of effort. This novel source of motivation is absent in contracts traditionally regarded as …

We show experimentally that fairness concerns may have a decisive impact on the actual and optimal choice of contracts … in a moral hazard context. Bonus contracts that offer a voluntary and unenforceable bonus for satisfactory performance … provide powerful incentives and are superior to explicit incentive contracts when there are some fair-minded players. But …