Nicklisch, Andreas; Wolff, Irenaeus - Thurgauer Wirtschaftsinstitut an der Universität Konstanz - 2011
We experimentally show that current models of reciprocity are in- complete in a systematic way using a new variant of the ultimatum game that provides second-movers with a marginal-cost-free punish- ment option. For a substantial proportion of the population, the de- gree of rst-mover unkindness...