Lab evidence on trust games involves more cooperation than conventional economic theory predicts. We explore whether this pattern extends to a field setting where (much like in a lab) we are able to control for (lack of) repeat-play and reputation: cab drivers in Mexico City. We find a...

Lab evidence on trust games involves more cooperation than conventional economic theory predicts. We explore whether this pattern extends to a field setting where we are able to control for (lack of) repeat-play and reputation: the taxi market in Mexico City. We find a remarkably high degree of...

We develop, and experimentally test, models of informal agreements. Agents are assumed to be honest but suffer costs of overcoming temptations. We extend two classical bargaining solutions -- split-the-difference and deal-me-out -- to this informal agreement setting. For each solution there are...