communication, we also find systematic deviations from optimal behavior in how the communicated information is used. Specifically …

) private information with sequential, two-way communication. In the first stage, the buyer communicates her private preferences …

and statements, and we investigate whether communication improves information aggregation and the accuracy of group … decisions. Our findings suggest that the effect of communication depends on the underlying accuracy of individual judgments …. Communication improves accuracy when individuals tend to be incorrect, but diminishes it when individuals are likely to be correct …