Gaudeul, Alexia; Keser, Claudia; Müller, Stephan - 2019
cost-benefit ratio (CBR). There are indeed only two stable sets of equilibria enabling cooperation, one for low CBRs …-order discriminators which highlights the necessity for higher-order information to sustain cooperation through indirect reciprocity. In a … laboratory experiment, we find that more than 75% of subjects play strategies that belong to the predicted equilibrium set …