We investigate experimentally the underlying motivations and individual dierences with regard to the participation in between-group conflict in nested social dilemmas. In our nested social dilemmas, the collective is divided into two groups, and individuals allocate tokens between a private, a...

A natural field experiment is conducted on the determinants of consumer’s willingness to pay for “fair trade” (FT) products. In four treatments, subjects are offered different choices in connection with a coffee purchase, such as buying regular coffee or FT coffee at a premium, regular...

We analyze the effect of “milestones” on reaching a long-term target, which if missed implies dramatic payoff risks. In our experiment, a cumulative threshold public goods game, milestones are captured by intermediate contribution targets on the way to the final target. Missing the final...

We analyze the effect of investments in corporate social responsibility (CSR) on workers’ motivation. In our experiment, a gift exchange game variant, CSR is captured by donating a certain share of a firm’s profit to charity. We are testing for CSR effects by varying the possible share of...

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,...

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...

In reality, it is often groups rather than individuals that make decisions. In previous experiments, groups have frequently been shown to act differently from individuals in several ways. It has been claimed that inter-group interactions may be (1) more competitive, (2) more rational, or (3)...