In this article, we consider how important developments in game theory have contributed to the theory of industrial organization. Our goal is not to survey the theory of industrial organization; rather, we consider the contribution of game theory through a careful discussion of a small number of...

This paper builds a new model of financial exchange competition, tailored to the institutional details of the modern US stock market. In equilibrium, exchange trading fees are competitive but exchanges are able to earn economic profits from the sale of speed technology. We document stylized...

This book provides an updated overview of the recent progress in the theoretical study of third-degree price discrimination. It is a marketing tactic and is said to be present if the unit price is different across different groups of buyers. Its welfare evaluation is often difficult because it...

1. Monopoly -- 2. Simultaneous quantity competition -- 3. Simultaneous price competition -- 4. Sequential competition -- 5. Regulating imperfectly competitive markets -- 6. R&D incentives -- 7. Mergers and Collusion -- 8. Bundling incentives -- 9. Incomplete information, signaling, and...