Same process, different outcomes: group performance in an acquiring a company experiment

Publication Type:
Journal Article
Citation:
Experimental Economics, 2016, 19 pp. 764 - 791
Issue Date:
2016
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© 2015 Economic Science Association It is still an open question when groups perform better than individuals in intellective tasks. We report that in an Acquiring a Company game, what prevailed when there was disagreement among group members was the median proposal and not the best proposal. This aggregation rule explains why groups underperformed with respect to a “truth wins” benchmark and why they performed better than individuals deciding in isolation in a simple version of the task but worse in the more difficult version. Implications are drawn on when to employ groups rather than individuals in decision making.
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