, and show that a monopolist platform's incentive to bundle and its optimal pricing strategy are determined by simple … platform may want to bundle the services it provides to two sides. I develop a general model for such "mixed" two-sided markets … network externalities, which incorporate "two-sidedness". The optimal pricing rule in such markets generalizes the familiar …

has two effects: On the one hand, it makes finding the optimal pricing more difficult so that, on average, we find prices …