We study the behavior of employers and employees in a gift exchange game and find that employers offer lower wages when there is the risk of losing money. This, however, does not lead to lower effort level choices. In fact, effort per wage unit is significantly higher in the treatment with...

We introduce the give-or-destroy game that allows us to fully elicit an individual's social preference schedule. We find that about one third of the population exhibits both pro-social and anti-social preferences that are independent of payoff comparisons with those who are affected. We call...