In this paper we show that if a very small, exogenously given probability of terminating the exchange is introduced in an elementary investment game, reciprocators play more often the defection strategy. Everything happens as if they hide behind probabilities in order to break the trust...

We study experimentally the impact of pre-play social interactions on negotiations. These interactions are often complex. Thus, we attempt to isolate the impact of several of its more common components: conversations, food, and beverages, which could be alcoholic or nonalcoholic. To do this, our...