We report on an experiment using video technology to manipulate pre-play communication protocols in the lab and to … study purely social effects of communication on donations and discrimination between potential receivers. The experimental … the latter decides on her gifts. Through the use of three communication setups (none, audio, and audio-visual) we show and …

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 …

We report on an experiment using video technology to study effects of communication on donations to and discrimination … communicate with an anonymous dictator before the latter decides on her gifts. Through the use of three communication setups (none …, audio, and audio-visual) we analyze purely social effects of communication. A silent video channel leads to discrimination …

We report on an experiment using video technology to manipulate pre-play communication protocols in the lab and to … study purely social effects of communication on donations and discrimination between potential receivers. The experimental … the latter decides on her gifts. Through the use of three communication setups (none, audio, and audio-visual) we show and …

-binding communication among responders can help coordinate their collective resistance against a leader who transgresses against them …. Contrary to the predictions of analysis based on purely self-regarding preferences, we find that non-binding communication …, we find that the incidence of no transgression increases from 7 percent with no communication up to 25-37 percent …

-binding communication among responders can help coordinate their collective resistance against a leader who transgresses against them …. Contrary to the predictions of analysis based on purely self-regarding preferences, we find that non-binding communication …, we find that the incidence of no transgression increases from 7 percent with no communication up to 25-37 percent …

To explain why pre-play communication increases cooperation in games, one refers to a) strategic causes such as … efficient communication or reputation effects, and b) changes in the utilities due to social processes. Hitherto experimental … focus on the effects of communication processes. We clearly find social effects, but none of revealed anonymity or salient …