This paper theoretically and experimentally studies decision-making in risky and social environments. We explore the interdependence of individual risk attitudes and social preferences in form of inequality aversion as two decisive behavioral determinants in such contexts. Our model and the data...

We study in a sample of 1,070 primary school children, aged seven to eleven years, how altruism in a donation experiment is related to children’s risk attitudes and intertemporal choices. Examining such a relationship is motivated by theories of reciprocal altruism that provide a cornerstone...

We conduct an experiment on the impact of feedback in the Trust Game. In our treatment group, the Trustee has the opportunity to give feedback to the Investor (free in choice of wording and contents). The feedback option is found to reduce the share of Investors who sent no resources to the...

We experimentally show that current models of reciprocity are incomplete in a systematic way using a new variant of the ultimatum game that provides second-movers with a marginal-cost-free punishment option. For a substantial proportion of the population, the degree of first-mover unkindness...

We show with a laboratory experiment that individuals adjust their moral principles to the situation and to their actions, just as much as they adjust their actions to their principles. We first elicit the individuals' principles regarding the fairness and unfairness of allocations in three...

We study how individuals adjust their judgment of fairness and unfairness when they are in the position of spectators before and after making real decisions, and how this adjustment depends on the actions they take in the game. We find that norms that appear universal instead take into account...

We design an experiment to examine whether egalitarian preferences, and in particular, behindness aversion as well as preference for favorable inequality affect competitive choices differently among males and females. We find that selection into competitive environments is: (a) negatively...

We compare inequality aversion in individuals and teams by means of both within- and between-subject experimental designs, and we investigate how teams aggregate individual preferences. We find that team decisions reveal less inequality aversion than individual initial proposals in team...