We study a duopoly model where each firm chooses personalized prices for its targeted consumers, who can be active or passive in identity management. Active consumers can bypass price discrimination and have access to the price offered to non-targeted consumers, which passive consumers cannot....

We consider two-sided markets in which consumers and firms endogenously determine whether they single-home (patronize only one platform), or multi-home (join competing platforms). We find that the standard competitive bottleneck allocation in which all consumers single-home and all firms...

We develop a model for two-sided markets with consumers and producers, who interact through a platform. Typical settings for the model are the market for smartphones with phone users, app producers, and smartphone operating systems; or the video game market with game players, video game...

Firms in traditional markets often compete in output à la Cournot. In this paper, we consider Cournot competition between platforms in a two-sided market. We find that the markup and markdown terms are distorted toward zero for greater levels of platform competition and for greater levels of...

This paper considers intra-platform technologies that allow a consumer's content and preferences to carryover across platform generations. In many platform industries content consumed on a platform's previous generation can be used on the platform's new generation. Naturally, a consumer with...

Under a simple Cournot model with vertical relations, when downstream firms engage in process R&D, the profits of input suppliers for which upstream competition exists may be larger than those in which each input supplier has a bilateral monopoly relation with its buyer (downstream firm). This...