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 …

group of people who make a decision by voting on a proposal. An outside expert who observes the qualities of a proposal … sends a cheap talk message to decision makers with limited information. A simple cheap talk strategy of the expert can be … surprisingly effective in persuading decision makers by polarizing or unifying their opinions. When there is a significant …

We develop a model of strategic information transmission from an expert with informational superiority to decision … persuading decision makers by polarizing or unifying their opinions. After observing the expert's cheap talk message, decision … her own bias. In other words, the expert's cheap talk prevents a voting procedure from aggregating decision makers …