İriş, Doruk; Santos-Pinto, Luís - In: Games 4 (2013) 1, pp. 50-65
with unkind actions (negative reciprocity), while at the same time, it responds to kind behavior of rivals with kind … actions (positive reciprocity). We find that collusion is easier to sustain when firms have a concern for reciprocity towards … competing firms provided that they consider collusive prices to be kind and punishment prices to be unkind. Thus, reciprocity …