Several online market sites, such as eBay, have implemented reputation management mechanisms in order to improve cooperation. In this article, we aim at investigating the emergence of trust and cooperation in presence of reputation mechanism. In a series of experiments based on the trust game...

The influence of relative wealth on fairness considerations is analyzed in an ultimatum game experiment in which participants receive large and widely unequal initial endowments. Subjects initially demonstrate a concern for fairness. With time however, behavior becomes at odds with both subgame...

Partant du constat que des préférences sociales très différentes peuvent conduire, assez paradoxalement, à des comportements assez similaires en jeu d’ultimatum, ce papier a pour ambition de proposer une méthode d’identification de ces préférences. Nous proposons une modélisation...

One reason cited for the limited effect of financial incentives on physician behaviour is the assumption of substituability of motivations. Extrinsic motivations crowd out intrinsic motivation (IM). We seek to highlight the theorical conditions for this "crowding out effect" (COE). At first time...