We experimentally study how group identity and social influence affect proposers and recipients in Ultimatum and Impunity Games. To induce group identity and social effects, we assign individuals to different color groups and inform them about the median choice of their own group. When testing the relevance of this social signal for intentions and decisions we distinguish uni- and bi-dimensional behavior, the latter to let individuals select on which rule of conduct of the others to condition own behavior. When disagreement and conflicting views are possible, coordinating with group behavior may be less important and individuals may prefer self-serving. The bi-dimensional design apparently allows for more variety: tracking both group medians, only one or none. Social influence significantly affects behavior in Ultimatum but has much weaker impact in Impunity experiments. Social information seems to act in two ways: as a coordination device and as a learning device. However, the marginal impact of the signal and the direction of its influence is strongly role dependent.
We present laboratory experiments showing how induced group identity and social effects influence proposers and recipients in Ultimatum and Impunity games. To induce group identity and social effects, we assign individuals to different color groups and inform them about median choices in their own group. When testing the relevance of this social signal for intentions and decisions we distinguish uni- and bi-dimensional medians, the latter letting individuals select whether to condition own behavior on others’ proposer or response attitude. When disagreement and conflicting views are possible, aligning with group behavior may be less important and individuals may become self-serving. Bi-dimensional medians allow for more variety: tracking both group medians, only one or none. Social influence significantly affects strategic behavior in Ultimatum but has much weaker impact in Impunity, which elicits how intrinsic intentions are influenced. Social information seems to enhance conforming with others and learning. However, the marginal influence of the signal its direction is strongly role dependent.
Group Influence in Sharing Experiments
Patrizia Sbriglia
2017
Abstract
We present laboratory experiments showing how induced group identity and social effects influence proposers and recipients in Ultimatum and Impunity games. To induce group identity and social effects, we assign individuals to different color groups and inform them about median choices in their own group. When testing the relevance of this social signal for intentions and decisions we distinguish uni- and bi-dimensional medians, the latter letting individuals select whether to condition own behavior on others’ proposer or response attitude. When disagreement and conflicting views are possible, aligning with group behavior may be less important and individuals may become self-serving. Bi-dimensional medians allow for more variety: tracking both group medians, only one or none. Social influence significantly affects strategic behavior in Ultimatum but has much weaker impact in Impunity, which elicits how intrinsic intentions are influenced. Social information seems to enhance conforming with others and learning. However, the marginal influence of the signal its direction is strongly role dependent.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
