guarantee reciprocity, we see that there is still significant evidence of altruism, which we then confirm using laboratory …

Results are reported of the first natural field experiment on the dictator game, where subjects are unaware that they … participate in an experiment. In contrast to predictions of the standard economic model, dictators show a large degree of pro … participate in an experiment or not. …

I ran an experiment in order to evaluate the relationship, if any, between power, or the search for power, and the … degree of altruism. In particular I experimentally tested whether an organization structured in a strictly hierarchical way … was able to reduce the degree of altruism of a group of experimental subjects. The subjects were divided into groups and …

A central question in the study of altruism has been whether there is a systematic gender difference in giving behavior …

heterogeneity. As is well known, heterogeneity in time preference results in substantial inequality. This paper shows that, even if …―sacrifice and altruism, and interventions by the authority are justified. Sustainable heterogeneity indicates that globalization … heterogeneity may more correctly measure people’s “happiness.” However, it also indicates that inequality is necessary for …

experiment, however, indicates that a tertiary personality variable, sometimes called psychological well-being, is the primary …

This paper presents theoretical and empirical analyses of experiments that test competing theories of altruism …, including pure altruism (a preference for the well-being of others), warm glow (a good feeling from giving) and impure altruism … (a combination of pure altruism and warm glow). These theories produce different predictions regarding crowding out, i …