We analyze optimal contracts in a hierarchy consisting of a principal, a supervisor and an agent. The supervisor is either neutral or altruistic towards the agent, but his preferences are private information. In a model with two supervisor types, we find that the optimal contract may be very...

We study a relational contracting model with two agents where each agent faces multiple tasks: effort toward the agent's own project and helping effort toward another agent's project. We first propose the two-step approach, which is useful for characterizing the equilibrium of relational...

We consider a situation where an agent's effort is monitored by a supervisor who cares for the agent's well being. This is modeled by incorporating the agent's utility into the utility function of the supervisor. The first best solution can be implemented even if the supervisor's preferences are...

We study a principal-agent setting in which both sides learn about future profitability from output, and the project can be abandoned/terminated if profitability is too low. With learning, shirking by the agent both reduces output and lowers the principal's estimate of future profitability. The...

We study a dynamic contracting problem in which the principal can allocate his limited capacity between seeking evidence that confirms or that contradicts the agent's effort, as the basis for reward or punishment. Such flexibility calls for jointly designed monitoring and compensation schemes...

We consider relational contracts for teams in which the agents monitor each other. We demonstrate that providing rents to the agents strengthens peer sanction endowed within the agents' ongoing relationship, which may have a negative effect to induce unproductive collusion as well as a positive...

Previous literature documents that mutual funds' flows increase more than linearly with realized performance. I show this convex flow-performance relationship is consistent with a dynamic contracting model in which investors learn about the fund manager's skill. My model predicts that flows...

This paper is an extensive review of agency theory applied to labour incentives. It introduces a generalised principal-agent model that goes through a certain degree of critical assessment. The analysis of the optimality within the trade-off of insurance against incentives is enriched by...

We introduce a tractable dynamic monitoring technology into a continuous-time moral-hazard problem and study the optimal long-term contract between principal and agent. Monitoring adds value by allowing the principal to reduce the intensity of performance-based incentives, reducing the...

I study a continuous-time principal-agent model in which the principal is ambiguity averse about the agent's effort cost. The robust contract generates a seemingly excessive pay-performance sensitivity. The worst-case effort cost is high after good performance, but low after bad performance,...