This paper introduces a model of social preferences featuring a single parameter representing an individual's disposition to share resources with others. The parameter reacts to observed behavior of others in a clearly defined manner. Therefore, the model allows the numerical analysis of...

This study investigates whether individuals engage in prosocial behavior when it requires their time but not money. In a lab experiment with rigorous anonymity arrangements, subjects receive their payoff beforehand and can engage in a tedious task to increase the earnings of a passive recipient....