Güth, Werner (contributor); Ploner, Matteo (contributor); … - 2008
investigate what causes the in-group bias: is it due to mere group affiliation or, alternatively, is guilt-aversion a possible … beliefs. We find that mere group affiliation affects beliefs and explains a substantial part of the bias, but we also find … evidence in favor of guilt-aversion as a source of motivation. -- Social preferences ; experiments ; social dilemma ; group …