, fairness and incentives. …We show experimentally that fairness concerns may have a decisive impact on both the actual and the optimal choice of … inferior when some agents value fairness. Conversely, implicit bonus contracts that are doomed to fail among purely selfish …

We show that concerns for fairness may have dramatic consequences for the optimal provision of incentives in a moral … concerned about fairness. Conversely, contracts that are doomed to fail when there are only selfish actors provide powerful … incentives and become superior when there are also fair-minded players. These predictions are strongly supported by the results …

. Such behavior may call for high-powered incentives, so that increased effort by the worker little increases the income of … various assumptions about the object and generality of envy. Envy amplifies the effect of incentives on effort and, therefore …

systematically refutes the self-interest hypothesis and suggests that many people are strongly motivated by concerns for fairness and … insights into the nature of preferences and into the relative performance of competing theories of fairness. The purpose of …

term poverty, and that the possibility of using work requirements weakens the incentives to exert effort to escape poverty …