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...

This paper investigates the factors that make teams successful in competitive environments. In collaboration with a medium-sized Latin-American bank, we designed a series of contests among the branches of the bank, in which we varied the prize structure of the tournaments (in some tournaments,...

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...

We investigate a multi-agent moral-hazard model where agents have expectation-based reference-dependent preferences a la Koszegi and Rabin (2006, 2007). We show that even when each agent's probability of success in a project is independent, team incentives can be optimal. Because the agents are...

This paper analyzes the impact of heterogeneous (social) preferences on the weighting and combination of performance measures as well as on a firm's profitability. We consider rivalry, egoism and altruism as extreme forms within the continuum of possible preferences and show that the principal...

This paper addresses the question, what metrics should be used for performance evaluation and in particular how they should be weighted and combined in the presence of technological interdependencies when the agents exhibit variedly strong developed rivalry. We find that the principal reacts to...

We analyze the optimal combination of promotion tournaments and linear individual performance pay in an employment relationship. An agent's effort is non-observable and he has private information about his suitability for promotion. Thus, the two incentive schemes need to be combined to serve...

In many workplaces co-workers have the best information about each other's effort. Managers may attempt to exploit this information through peer evaluation. I study peer evaluation in a pure moral hazard model of production by two limitedly liable agents. Agents receive a signal about their...

We investigate whether and how social ties affect performance in teams by implementing a field experiment in which a sample of undergraduate students are randomly assigned to either teams composed by friends or teams composed by individuals not linked by friendship relationships. Students...

We investigate whether and how social ties affect performance in teams by implementing a field experiment in which a sample of undergraduate students are randomly assigned to either teams composed by friends or teams composed by individuals not linked by friendship relationships. Students...