conducted a real effort fairness experiment where people in two of the world's richest countries, Norway and Germany, interacted … directly with people in Uganda and Tanzania, two of the world's poorest countries. In this experiment, the participants were …. First, entitlement considerations are crucial in explaining the distributive behavior of rich people in the experiment …

interaction. We constructed an experiment where participants chose the group size, either a low-value partnership or a high …

Norms of cooperation and punishment differ across societies, but also within a single society. In an experiment with … increase cooperation among students but not in the general population. In previous studies, punishment magnified the … differences across societies in peoples ability to cooperate. Here, punishment reversed the order: with punishment, students …

independently of many other factors and whence these differences emerge. Through an experiment in four Italian cities, we study the …