learning experiment. We find that virtual communication leads to a substantial deterioration of group rationality for a …-based organizations. To test the robustness of higher group rationality under conditions of virtual communication, we conduct a social … shown for face-toface decision making, which has ceased to be the prevalent form of communication in many IT …

before making a choice. There are two possible explanations for this "communication effect". One is that communication … enhances group identity, the other is that communication elicits social norms. I discuss both views and argue in favor of a …

equilibrium, retains equilibrium expectations but adds stochastic response (of which players are aware). Learning theories explain …) or foregone payoffs (model-directed learning). Finally, many studies reject the joint hypothesis of equilibrium …

deciding as a group member. We observe a strong dishonesty shift. This shift is mainly driven by communication within groups …