Kim (1995) provides a sufficient condition to rank information systems when the first-order approach is valid. The basis for the condition is the comparison of the likelihood ratio distributions. I show, first, that Kim’s criterion is not necessary when the limited liability of the agent...

In an agency model with moral hazard and limited liability, we show that the provision of perks can be inefficient, even if perks are contractible. Interestingly, there can be over- as well as underinvestment in perks. We also demonstrate that perks may actually harm the agent, although perks...

In a principal–agent model, we find that firms may not always benefit from the relative concerns of agents if such concerns are heterogeneous. Further, accounting for the influence of the environment on such concerns, profits are reduced relative to the no-comparisons benchmark.

We investigate the relationship between tournament prices and effort choices in the presence of favoritism. High tournament prizes can decrease agents’ effort supply when the choice of the winner is not perfectly objective but affected to some extent by personal preferences of an evaluator.

When penalties for first-time offenders are restricted, it is typically optimal for the lawmaker to overdeter repeat offenders. First-time offenders are then deterred not only by the (restricted) fine for a first offense, but also by the prospect of a large fine for a subsequent offense. Now...

When an employee in a gift exchange game earns significantly less than the employer, the source of employer income does not affect effort choices. However, to induce one unit of effort, the employer has to pay higher wages than in a game without payoff inequality.

I study the trade-off between private and verifiable interim performance evaluations under uncertainty. More uncertainty leads to higher agency costs if the interim evaluation is public and verifiable but lower agency costs if the interim evaluation is private and unverifiable.

When employers can incur losses from the labor relationship in a gift exchange game, they offer lower wages on average than in a no-loss relationship. Taking employers’ risk of losing money into account, employees exert more effort per wage unit.

We analyze a task-assignment model in which a principal assigns a task to one of two agents depending on future states. If the agents have concave utility, the principal assigns the task to them contingent on the state. We show that if the agents are loss averse, a state-independent...