Does market interaction influence morality? We study a particular angle of this classic question theoretically and experimentally. The novelty of our approach is to posit that people are motivated by reciprocity; an urge many argued affects humans. We scrutinize how this shapes interaction in...

In a game with pre-play bilateral communication, messages may trigger moral incentives to honor promises or agreements. We hypothesize that individuals’ inclination to keep a promise is highest if the counterpart requited the promise. We interpret this as an inclination to honor agreements. We...