In-group favoritism in social dilemma situations is one of the main findings of studies in Social Identity Theory. We investigate what causes the in-group bias: is it due to mere group affiliation or, alternatively, is guilt-aversion a possible explanation? We induce group membership in a...

We analyse pricing, effort and tipping decisions in the online service Google Answers. While users set a price for the answer to their question ex ante, they can additionally give a tip to the researcher ex post. In line with the related experimental literature we find evidence that tipping is...

We apply the property rights theory of Grossman-Hart-Moore in the music industry and study the optimal allocation of copyright between the artists who create music and the labels who promote and distribute it. Digital technology opens up a role for new intermediaries. We find that entry of...

In experimental economics there exists a lively debate about the independence of observations. Although opinions on the issue differ widely, all concerns regard the independence of subjects' behavior within one session or experiment. This paper attempts to shed some light on the independence of...

In a recently published article, Bruni and Stanca (2008) suggest that television viewing has a negative impact on life satisfaction. In this note we argue that the empirical approach they use (an approach that omits the main effect of TV viewing in life satisfaction) is problematic. We estimate...

Motivated agents are characterized by increasing their effort if their work generates not only a monetary return for them but also a benefit for a mission they support. While their motivation may stem from working for their preferred (i.e., the `right') mission, it may also be the principal's...

Receiving equal wages for work of equal value is a legal right in many countries. However, it remains unknown to what degree the neglect of this principle yields differences in pay between social and other occupations. The results of a task-based analysis with survey data confirm a notable wage...

We conduct a real-effort task experiment where subjects' performance translates into a donation to a charity. In a within-subjects design we vary the visibility of the donation (no/private/public feedback). Confirming previous studies, we find that subjects' performance increases, that is, they...

This study investigates experimentally whether people in retrospective are self-aware that they engage in status-seeking behavior. Subjects participated in a real-effort task where effort translated into a donation to a charity. Within-subjects we varied the visibility of their performance...

In our experiment, a dictator game variant, the reported outcome of a die roll determines the endowment (low/high) in a subsequent dictator game. In one treatment the experimenter is present and no cheating is possible, while in another subjects can enter the result of the roll themselves. Moral...