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 …

We experimentally study the effect of the mode of digital communication on the emergence of trust in a principal …-agent relationship. We consider three modes of communication that differ in the capacity to transmit nonverbal content: plain text, audio …, and video. Communication is pre-play, one-way, and unrestricted, but its verbal content is homogenized across treatments …