This paper analyzes the effects of tying arrangements on market competition and social welfare in two-sided markets …

Partly motivated by the recent antitrust investigations concerning Google, we develop a leverage theory of tying in two …

Partly motivated by the recent antitrust investigations concerning Google, we develop a leverage theory of tying in two …

support. By bundling, the A-monopolist provides previously non-existent competition with the B-monopolist in the latter … barrier because competition reduces profits. Were bundling harmful, the per se proscription against market allocation should …

-sided with paid products. In some cases, market competition is asymmetric with a single firm dominating the one-sided market … competition between the multi-product firms. Incorporating the platform market structure yields several interesting results. It is …

We analyze duopoly Bertrand competition under network effects. We consider both incompatible and compatible products …

We consider dynamic competition among platforms in a market with network externalities. A platform that dominated the … the focal platform whenever such equilibrium exists. Yet when faced with higher-quality competition, can a low …

of multi-homing on both sides is mostly ignored in the literature on competition between two-sided platforms. We help … fill this gap by developing a model for platform competition in a differentiated setting (a Hoteling line), which is …