In recent years a large number of experimental studies have documented the existence of strong reciprocity among humans …. Strong reciprocity means that people willingly repay gifts and punish the violation of cooperation and fairness norms even in … that ultimate theories of kin selection, reciprocal altruism, costly signalling and indirect reciprocity do not provide …

punishment of induction” (inducing somebody to desire to do something wrong) and the second, called ''respecting reciprocity'' is …

We study indirect reciprocity and strategic reputation building in an experimental helping game. At any time only half … of the subjects can build a reputation. This allows us to study both pure indirect reciprocity that is not contaminated … find that while pure indirect reciprocity appears to be important, the helping choice seems to be influenced at least as …

they can expect reciprocation in the form of future loans for themselves or for their children (reciprocity). The … reciprocity effects are incorporated in an overlapping generations repayment game with endogenous matching between lenders and …

fairly, and to punish non-cooperators. We call this behavioral propensity ‘strong reciprocity’ and show empirically that it … person or who defected in a Prisoner’s Dilemma game with a third person. This suggests that strong reciprocity is a powerful … device for the enforcement of social norms like, e.g., food-sharing norms or collective action norms. Strong Reciprocity …