Participants in a public goods experiment receive private or common signals regarding the so-called "point of no return", meaning that if the group's total contribution falls below this point, all payoffs are reduced. An individual faces the usual conflict between private and collective...

nnovative behavior is mostly studied theoretically, e.g., in models of patent races, and empirically, e.g., by using R&D or patent data. This research, however, is only poorly informed about the psychological tradition of creativity research. Our study is an attempt to experimentally collect...

In the experimental scenario several agents repeatedly invest in n (n = 2) state-speciïfic assets. The evolutionarily stable and equilibrium (Blume and Easley, 1992) portfolio for this situation requires to distribute funds according to the constant probabilities of the various states. The...

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...