In contrast to guilt based reciprocity, which hypothesizes that reciprocity is an increasing function of the 2nd order expectation of the trustors’ 1st order expectations for reciprocation, we tested for reciprocity that is a decreasing function of the trustees’ 2nd order expectations, i.e.,...

Evidence for positive reciprocity, where subjects give more than dictators with the same endowment, has always been rare. We investigate the significant positive reciprocity in a prior experiment which broke a trust game into a 2-stage dictator game. There, the 2nd dictator knew that the 1st...