choose with whom within their group they want to play a trust game. Participants observe of each other age, gender …. Participants tend to trust those they trusted before and who trusted them. We do not find evidence of regional discrimination per …

implement a control strategy, which consists of low effort discretion and little or no rent-sharing, or they implement a trust … control strategy prevails, while the possibility of screening renders the trust strategy profitable. The introduction of … competition substantially fosters the trust strategy, reduces market segmentation, and leads to large welfare gains for both …

anonymous, such markets perform poorly: sellers are not trustworthy, and buyers do not trust sellers. If sellers are …, we find that competition, coupled with some minimal information, eliminates the trust problem almost completely. …