, 261-281) and Malawski (2002, Int J Game Theory 31:47-67). In particular, we show that the collusion properties employed by … them are equivalent. Combined with the dummy player axiom, any of the collusion properties has strong symmetry implications …-redundantly characterized by the dummy player axiom and any of the collusion properties, provided that the player set is as above. -- Banzhaf …

This paper generalizes the classical duopoly collusion model by first deriving a new marginal cost curve. It then … have higher incentive to collude. It also distinguishes free collusion from centralized collusion, competition from …

The collusion incentive constraint is an important economic measure of cartel stability. It weighs the profits of being …