Carpenter, Jeffrey P.; Matthews, Peter Hans - 2004
altruism. Instead, we posit that social reciprocity is a triggered normative response. Our experiment confirms the existence of …We define social reciprocity as the act of demonstrating one's disapproval, at some personal cost, for the violation of … widely-held norms (e.g., don't free ride). Social reciprocity differs from standard notions of reciprocity because social …