Costless pre-play communication has been shown to effectively facilitate within-group coordination. However, in … costly efforts. We find that allowing within-group communication makes groups compete more aggressively. When only one group …. However, the communicating group earns payoffs that are not different from the baseline contest without any communication …

equally in groups of optimal size and there is no communication. The assignment of individuals to groups as either strangers … or partners does not significantly affect this outcome. In this paper we investigate whether communication changes these … results. Communication reduces shirking, increases aggregate effort and reduces aggregate rents, but only when communication …

equally in groups of optimal size and there is no communication. In this paper we investigate the impact of introducing … communication groups that may or may not be linked to output sharing groups. Communication reduces shirking, increases aggregate … effort and reduces aggregate rents, but only when communication groups and output-sharing groups are linked. The effect is …

equally in groups of optimal size and there is no communication. In this paper we investigate the impact of introducing … communication in groups that may or may not be linked to output sharing groups. Communication reduces shirking, increases aggregate … effort and reduces aggregate rents, but only when communication groups and output-sharing groups are linked. The effect is …