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...

Experimental studies of the WTP-WTA gap avoid social trading by implementing an incentive compatible mechanism for each individual trader. We compare a traditional random price mechanism and a novel elicitation mechanism preserving social trading, without sacrificing mutual incentive...

Experimental studies of the WTP-WTA gap avoid social trading by implementing an incentive compatible mechanism for each individual trader. We compare a traditional random price mechanism and a novel elicitation mechanism preserving social trading, without sacrificing mutual incentive...

In a modified dictator game experiment, we study how distributional justice, measured by the proportionality between effort exerted and rewards obtained, and guilt feelings triggered by others’ expectations affect dictator’s choices. We consider these two sources of behavior in isolation and...

This paper experimentally investigates a well-known anomaly in portfolio management, i.e. the fact that paper losses are realized less than paper gains (disposition effect). The existence of the disposition effect is documented in a simple risk task which demonstrates that the anomaly is most...

We experimentally investigate social effects in a principal-agent setting with incomplete contracts. The strategic interaction scheme is based on the Investment Game (Berg et al., 1995). In our setting four trustees and one trustor are interacting and the access to choices of peers in the group...

Group membership increases cooperation in social dilemma games, altruistic donation in dictator games, and fair offers in ultimatum games. While the empirical study of group action has grown rapidly over the years, there is little agreement at the theoretical level on exactly why and how group...

We experimentally investigate imitation in investment choices and focus on cognitive aspects of decision making. At this aim, we manipulate three main dimensions of choice: time pressure, normative content of social information, and uncertainty of the investment. We document the existence of...

Group membership increases cooperation in social dilemma games, altruistic donation in dictator games, and fair offers in ultimatum games. While the empirical study of group action has grown rapidly over the years, there is little agreement at the theoretical level on exactly why and how group...