Most large-scale economic experiments use a between-subjects random incentive system-BRIS-which selects a subset of the participants at random and offers real payment only to the selected participants. We evaluate the relative impact of nominal payoffs and the selection probability on the...

This paper revisits and extends the experiment on the solidarity game by Selten and Ockenfels (1998). We replicate the basic design of the solidarity game and extend it in order to t test the robustness of the ‘fixed total sacrifice’ effect and the applied strategy method. Our results only...

We discuss several issues of organizing economic laboratory experiments like subject pool, recruitment, scheduling and show how we solved them with the help of the Online Recruitment System for Economic Experiments (ORSEE). This paper may serve as a manual for the system. A test system has been...