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 …

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 … recently developed theories of fairness, which also offer interesting new insights into the interaction of contract choices …