The effects of feelings of guilt on the behaviour of uncooperative individuals in repeated social bargaining games: An affect-as-information interpretation of the role of emotion in social interaction.

In two studies we found that feelings of guilt provoke individuals to cooperate in repeated social bargaining games (a prisoner's dilemma in Study 1 and an ultimatum game in Study 2). Feelings of guilt were either experimentally manipulated (Study 1) or assessed via self-report (Study 2) after participants had played one round of a social bargaining game. As predicted, individuals who experienced feelings of guilt (compared to individuals who felt no guilt) after pursuing a non-cooperative strategy in the first round of play, displayed higher levels of cooperation in the subsequent round of play (even one week later). Results are discussed in terms of an "affect-as-information" model, which suggests that non-cooperating individuals who experience the negative affective state associated with guilt in a social bargaining game may be using this feeling state as "information" about the future costs of pursuing an uncooperative strategy. Because in guilt the focus is on the specific, individuals are capable of ridding themselves of this emotional state through action (Lewis, 1993, p. 570).