Fig. 1

Graphic representation of the corruption game. Created by authors based on Abbink et al. (2002). Numbers refer to payments in experimental currency units (ECU). F refers to a firm and PO to a public official. The firm moves first and then the public official. N refers to the situation where a public official accepts a bribe and there is a probability of getting caught; if caught, both players receive zero payment (probability 5 % in low-monitoring scenario and 25 % in high-monitoring scenario)