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Risky Investment Decisions: How Are Individuals Influenced By Their Groups?, W. Kip Viscusi, Owen R. Phillips, Stephan Kroll
Risky Investment Decisions: How Are Individuals Influenced By Their Groups?, W. Kip Viscusi, Owen R. Phillips, Stephan Kroll
Vanderbilt Law School Faculty Publications
We investigate the effect of group versus individual decision-making in the context of risky investment decisions in which all subjects are fully informed of the probabilities and payoffs. Although there is full information, the lottery choices pose cognitive challenges so that people may not be sure of their expected utility-maximizing choice. Making such decisions in a group context provides real-time information in which group members can observe others’ choices and revise their own decisions. Our experimental results show that simply observing what others in the group do has a significant impact on behavior. Coupling real-time information with group decisions based …