Are monetary and non-monetary incentives used as substitutes in motivating effort? I address this question in a laboratory experiment in which the choice of the job characteristics (i.e., the mission) is part of the compensation package that principals can use to influence the agents' effort....

This paper models two key roles of subjective performance evaluations: their incentive role and their feedback role. The paper shows that the feedback role makes subjective pay feasible even without repeated interaction, as long as there exists some verifiable measure of performance. It also...