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 …

in quantity and quality of output. We use data from a controlled field experiment that changed the communication of the …

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 …

in quantity and quality of output. We use data from a controlled field experiment that changed the communication of the …