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 …

Numerous studies suggest that communication may be a universal means to mitigate collective action problems. In this … study, we challenge this view and show that the communication structure crucially determines whether communication mitigates … or intensifies the problem of collective action. We observe the effect of different communication structures on …