to the employer before a contract is offered (ex ante communication) and in which the employer can send negative or … positive feedback to the worker after the worker has chosen effort (ex post communication). The results indicate that feedback …

This paper investigates the effect of different communication channels on promise-making and promise-keeping in a … helping situation. Four treatments differ with respect to the communication channel employed to solicit unincentivized … cooperation, i.e., face-to-face, phone call and two different sorts of computer-mediated communication. The less anonymous (face …

This paper investigates the effect of different communication channels on promise-making and promise-keeping in a … helping situation. Four treatments differ with respect to the communication channel employed to solicit unincentivized … cooperation, i.e., face-to-face, phone call and two different sorts of computer-mediated communication. The less anonymous (face …