While most papers_new on team decision-making find teams to behave more selfish, less trusting and less altruistic than …-subjects design we re-examine group polarization by letting subjects make individual as well as team decisions in an experimental … dictator game. In our experiment teams are more selfish than individuals, and the most selfish team member has the strongest …

We study a model of collective decision making with endogenous information collection.Agents collect information about … decision is made. The reason for this result is that communicationmay aggravate the free-rider problem associated with …

This paper provides experimental evidence showing that indirectreciprocity may important in economic decision making … against a certain cost or not tohelp, enduring no costs. We observe that many decision makers respondto the information we …