It is commonly accepted that face-to-face communication inducescooperation. The experiment disentangles communication and socialeffect (replication of Roth, 1995) and examines the components of thesocial effect with the help of unilateral communication. Results suggestthat separate processes,...

We study ultimatum and dictator experiments where the first mover chooses the amount of money to be distributed between the players within a given interval, knowing that her own share is fixed. Thus, the first mover is faced with scarcity, but not with the typical trade-off between her own and...