This paper presents results from a modified dictator experiment aimed at distinguishing and quantifying the two … intrinsic motivations for giving: warm glow and pure altruism. In particular, we implemented a within-subject experimental … third one, T3, with a charity recipient and no crowding out, which elicits both types of altruism. We use T1 to assess to …

We conduct an experiment in which subjects make a series of decisions of allocating an endowment of £10 between … by altruism toward the recipient. We argue that opting out indicates that giving is also motivated by self-image concerns …