We consider the cost of providing incentives through tournaments when workers are inequity averse and performance evaluation is costly. The principal never benefits from empathy between the workers, by he may benefit from their propensity for envy depending on the costs of assessing performance....

We consider physicians with fixed capacity levels. If a physician's capacity exceeds demand, she may have an incentive to overtreat, i.e., she may provide unnecessary treatments to use up idle capacity. By contrast, with excess demand she may undertreat, i.e., she may not provide necessary...

This paper analyses multi-period regulation or procurement policies under asymmetric information between the regulator and regulated firms. As well known in the literature, some degree of separation is always optimal under any form of commitment. In contrast, we show that full pooling is optimal...

We consider the cost of providing incentives through tournaments when workers are inequity averse and performance evaluation is costly. The principal never benefits from empathy between the workers, but he may benefit from their propensity for envy depending on the costs of assessing...

We compare the wage costs of providing incentives through group versus individual bonus schemes. When workers are envious, either scheme may be the least cost one owing to the trade-off between the dissatisfaction with the prospect of unequal pay and the incentives it generates Nous comparons...

We consider physicians with fixed capacity levels. If a physician's capacity exceeds demand, she may have an incentive to overtreat, i.e., she may provide unnecessary treatments to use up idle capacity. By contrast, with excess demand she may undertreat, i.e., she may not provide necessary...