proposer's choice of the "pie" size. This has been shown to induce pie choices which are either efficiency or equality seeking … bias of competitive auctions. We find that entitlement crowds out equality seeking and strengthens efficiency seeking … ; Game ; Efficiency Seeking ; Inequity Aversion ; Satisficing …

Fairness is a strong concern as shown by the robust results of dictator giving and ultimatum experiments. Efficiency … provision games. In our experiment participants can increase efficiency by gift giving at the cost of reducing their own … for mutual gift giving. In both cases decisions can be conditioned on whether there is or there is not an efficiency gain …