Economics has not widely investigated the role of group identity in defining social norms. The present experiment considers the interplay between choices having social dimension and a notion of group affiliation based on shared intrinsic characteristics. More specifically, a triadic game setting...

The bias generated by the subjective perception of scarcity on the consumer's choice is discussed from a theoretical perspective. The core idea here discussed is that scarcity is an Lancasterian attribute of the goods which is not endogenously built in the goods, like many physical attributes,...

We present an axiomatic model of choice involving two agents, motivated by the experimental evidence on non-selfish preferences. We distinguish two classes of social preferences, depending on whether they are or not separable. Altruism and spite (Andreoni & Miller, 2002; Cox et al., 2007) are...