Our main method are economical (laboratory) experiments.
In particular, we investigate how people behave in the presence of third parties. The introduction of third parties into a situation has three potential effects: it can change the behavioral norms; it can introduce a dilemma between competing behavioral norms; or it can help subjects to behave according to a particular behavioral norm.
Our findings can be applied to different fields within economics, law, and psychology. This research can, for example, help to better understand cartel formation, the role of judges, or tax compliance.