Implicit vs. Explicit Incentives: Theory and a Case Study

Abstract

We derive the optimal contract between a principal and a liquidity-constrained agent in a stochastically repeated environment. The contract comprises a court-enforceable explicit bonus rule and an implicit fixed salary promise that must be self-enforcing. Since the agent’s rent increases with bonus pay, the principal implements the maximum credible salary promise. Thus, the bonus increases while the salary promise and the agent’s effort decrease with a higher probability of premature contract termination. We subject this mechanism to econometric testing using personnel data of an insurance company. The empirical results strongly support our theoretical predictions.implicit contract, explicit bonus pay, premature contract termination, compensation and productivity estimates