The aim of this experiment is twofold. First of all, I want to compare the human tendency to punish unfair behavior to the desire to help victims of that unfairness, in presence of a budget constraint and without the expectation of a long-run pecuniary gain. Secondly, I want to check whether...

The model by Fehr and Schmidt introduces envy and altruism in the utility function of a representative agent. The aim of this paper is to provide two extensions - non linearity and non self-centredness - to this model. This extension turns out to be more consistent with experimental evidence...

A real-effort experiment is conducted in order to detect preferences for one out of three different models of the Welfare State characterized by different tax-and-transfer schemes. We reproduce a small society in the lab where: Subjects are grouped in three stylized classes (the rich, the middle...