We use a two-person public goods experiment to distinguish betweene±ciency and fairness as possible motivations for cooperative behavior.Asymmetric marginal per capita returns allow only the high-productivityplayer to increase group payo®s when contributing positive amounts....

Contrary to the models of deterministic life cycle saving, we take itfor granted that uncertainty of one's future is the essential problem ofsaving decisions. However, unlike the stochastic life cycle models, we capturethis crucial uncertainty by a non-Bayesian scenario-based...

We study an ultimatum experiment in which the responder does not know the offer when accepting or rejecting. Unconditional veto power leads to acceptances, although proposers are significantly greedier than in standard ultimatum games, and this is anticipated by responders.

Direct transfers allow heirs to freely use what has been passed on to them. Bequeathers who do not trust their descendants to make proper use of the fortune may prefer investing it in a safe foundation, thereby limiting their descendants’ autonomy. In our study we compare experimentally these...

We report on an experiment designed to explore the interrelation of otherregardingconcerns with attitudes towards risk and delay when the latterhave a social dimension, i.e., pertain to one's own and another person'spayos. For this sake, we compare evaluations of several prospects, eachof which...

Idiosyncratic risk attitudes are usually assumed to be commonly knownand restricted to own payos. However, the alternatives faced by a decisionmaker often involve risks for others' payos as well. Motivated by theimportance of other-regarding preferences in social interactions, this paperexplores...

In one-shot investment game experiments where each player's payo is a convexcombination of own and other's prot, trust remains unaected by the extent of interdependencewhereas trustworthiness reacts positively to it.

We study the effects of leadership on the private provision of a public good when group members are heterogeneously endowed. Leadership is implemented as a sequential public goods game where one group member contributes first and all the others follow. Our results show that the presence of a...

A cyclical network of indirect reciprocity is derived organizing 3- or6-person groups into rings of social interaction where the first individualcan help the second, the second the third, and so on till the last, who inreturn can help the first. Mutual cooperation is triggered by assuming...

The present research experimentally examines the ininfluence of groupidentity on trust behavior in an investment game. In one treatment,group identity is manipulated only through the creation of artificial(minimal) groups. In other treatments group members are additionallyrelated by outcome...