We study a common agency model with informed principals consisting of two capacity-constrained suppliers and a single retailer. The capacity of each supplier is her private information. Conditioned on their capacities, the suppliers simultaneously and non-cooperatively offer quantity-price...

While there are suggestions in applied cartel studies that price dispersion changes when cartelization of a market occurs, there are few theoretical or empirical analyses of this effect. This paper surveys the thin economic literature on the link between overt collusion and price dispersion....

In this paper we extend the model of vertical product differentiation to also consider information disparities about the extent of quality differences. Equilibrium prices turn out to depend not only on the share of informed consumers but also on uninformed consumers beliefs about quality...