This paper analyzes the generalized quality differentiation model in multi-sided markets with positive externalities, which leads to new insights into the optimal pricing structure of the firm. We find that quality differentiation for users on one side affects not only the side involving...

We analyze the welfare effects of price discrimination by a monopolistic platform that mediates between two sides of a market. Discrimination is based on asymmetric costs on one side of the market and may be allowed on either or both sides. We show that unconstrained discrimination on both sides...

We analyze the welfare effects of price discrimination by a monopolistic platform that mediates between two sides of a market. Discrimination is based on asymmetric costs on one side of the market and may be allowed on either or both sides. We show that unconstrained discrimination on both sides...