evidence that they also encourage reciprocity. Keyword(s): Reciprocity; Retribution; Fairness; Non-binding contracts …-shot experiments were conducted with and without the possibility of making non-binding contracts beforehand. We find that retribution … is much more compelling than reciprocity. Although contracts are not binding they increase trust, but we do not find …

incompleteness and relational nature of most employment contracts and (b) the existence of reference-dependent fairness concerns … among a substantial share of the population into account. Theory shows and experiments confirm that, even if fairness … fairness on effort, derive predictions from our approach for entry-level wages and incumbent workers’ wages, confront these …

usually have incomplete information about fairness norms held by the other party - fairness norms that affect the other party …'s willingness to pay (WTP) or willingness to accept (WTA). Importantly, these fairness norms may depend on how strongly the … participants can be divided into three groups corresponding to three different fairness norms: negative types whose WTP and WTA are …

usually have incomplete information about fairness norms held by the other party - fairness norms that affect the other party …'s willingness to pay (WTP) or willingness to accept (WTA). Importantly, these fairness norms may depend on how strongly the … participants can be divided into three groups corresponding to three different fairness norms: negative types whose WTP and WTA are …

exclusively based on preferences over the distribution of material payoffs. Models that take into account players' fairness …