Duty-orientation implies a warm glow of giving as well as a cold shiver of not giving enough. If duty-oriented consumers learn their moral responsibility by observing others' behavior, social interaction in contribution behavior arises. However, since moral responsibility is a burden,...

This paper explores cooperation incentives in the absence of public reputation information, using an infinite-horizon Prisoners' Dilemma model of sequential relationships. We examine a strategy which we call Quit-for-Tat (QFT). In this model, individuals initially are paired randomly. In the...