Key points are not available for this paper at this time.
In one-shot social dilemma experiments, cooperation rates dramatically increase if subjects are allowed to communicate 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 norm-based explanation.
Cristina Bicchieri (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: