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 design eliminates strategic factors by allowing two...

The privately informed seller of a company sends a value message to the uninformed potential buyer who then proposes a price for the company. “Make-up” is measured by how much the true value is overstated, “Suspicion” by how much the price offer differs from the value message. Treatments...

In three party ultimatum games the proposer can first decide whether to exclude one responder, what increases the available pie. The experiments control for intentionality of exclusion and veto power of the third party. We do not find evidence for indirect reciprocity of the remaining responder...

In three-party ultimatum games, the proposer can first decide whether to exclude one responder, which increases the available pie. The experiments control for intentionality of exclusion and veto power of the third party. We do not find evidence for indirect reciprocity of the remaining...