We study the evolution of imitation behaviour in a differentiated market where firms are located equidistantly on a Salop circle. Firms choose price and quantity simultaneously, leaving open the possibility for non-market clearing outcomes. The strategy of the most successful firm is imitated....

In the recent past there have been numerous scandals around bad practices in the food industry. Although it can be easily rationalized why these bad practices have not been reported by the inflictors themselves, it is more difficult to understand why the non-inflicting competitors did not report...

This article contributes to the analysis of tacit collusion in quantity-setting supergames involving cost-asymmetric firms. Asymmetry is dealt with by assuming that firms have a different share of a specific asset that affects marginal costs. The model extends optimal punishment schemes in the...