The standard procedure in experimental economics maintains anonymity among participants. Yet, many field interactions are conducted with neither complete anonymity nor complete familiarity. How will people respond to varying degrees of anonymity and social distance? We consider the effect of one...

The gift-exchange game is a form of sequential prisoner's dilemma, developed by Fehr, Kirchsteiger, and Riedl (1993), and popularized in a series of papers by Ernst Fehr and co-authors. While the European studies typically feature a high degree of gift exchange, the few U.S. studies provide some...