This study analyzes the collusive behavior of firms in markets characterized by horizontal product differentiation. The special features are that product choice is endogenized and that firms may redesign their products intertemporally at a fixed cost. The main objective is to examine the...

This article examines endogenous cartel formation in the presence of a competition authority. Competition policy is shown to make the most inclusive stable cartels less inclusive. In particular, small firms that might have been cartel members in the absence of a competition authority are no...

The dynamic behavior of a price-fixing cartel is explored when it is concerned about creating suspicions that a cartel has formed. Consistent with preceding static theories, the cartel's steady-state price is decreasing in the damage multiple and the probability of detection. However, contrary...