-known commitment problem by introducing communication. Allowing the upstream firm to chat privately with each downstream firm reduces … total offered quantity from near the Cournot level (observed in the absence of communication) halfway toward the monopoly … bargaining advantage from open communication that all of the gains from monopolizing the market accrue to them. A simple …

experiment. We find no differences between treatments. This suggests that those dictators who give are purely internally … motivated, as asserted by models of other-regarding preferences. -- dictator game ; altruism ; social preferences …

experiment. We find no differences between treatments. This suggests that those dictators who give are purely internally …

We explore whether lawful cooperation in buyer groups facilitates collusion in the product market. Buyer groups … firms. Communication is often abused for explicit agreements and this strongly reduces competition. …

experiments with written cheap-talk communication between players and we compare them to treatments without the possibility to … tacitly but that the number of firms does not significantly affect outcomes with communication. As a result, the payoff gain … from communication increases with the number of firms, at a decreasing rate. …