This book reviews recent progress in the theory of oligopoly and market leadership and provides new results on the theory of Stackelberg competition and Nash competition with strategic investment under endogenous entry. These theories are applied to models of competition in quantities, prices and to patent races. The results are used to propose a new approach to competition policy and, in particular, to issues of the abuse of dominance, which goes beyond the post-Chicago approach, and to analyze such antitrust cases as the Microsoft case.

Klappentext

Competition, Innovation, and Antitrust develops a theory of market leadership in the presence of endogenous entry of firms and applies it to models of competition in the market and for the market. On this basis, the author provides a new approach to antitrust policy which is in support of the Chicago school but founded on a solid game-theoretic framework. The analysis is applied to the study of market leadership in the New Economy and of the recent antitrust cases involving Microsoft.

Federico Etro is Associate Professor of Economics at the University of Milan, Bicocca, and President of the International Think-tank on Innovation and Competition. He has publications on leading international journals as The American Economic Review, The RAND Journal of Economics, The Economic Journal and others, and is a consultant for international organizations and companies on industrial and antitrust policy.

This book explores the role of leadership in the economic theory of oligopoly, both for static oligopoly and for dynamic patent races. I thoroughly enjoyed its refreshing perspective.
Simon Anderson, University of Virginia

The simple but fundamental result on aggressive pricing by leaders facing endogenous entry, which has eluded researchers on the foundations of industrial organization so far, is bound to have a significant impact on the way people think about market entry, the role of potential competition, and issues of timing, strategic commitment and incumbency.
Rabah Amir, University of Arizona

In this innovative and thoughtful book, Etro provides a novel approach to competition policy in innovative industries. Building on the notion of Stackelberg equilibrium with endogenous entry, which he has himself contributed to develop, he highlights the crucial role of potential competition in determining market performance. It will be of great value to scholars and visionary practitioners, and may hopefully have a large impact on competition policy.
Vincenzo Denicolò, University of Bologna

Zusammenfassung
In 1934 Springer published a book by Heinrich von Stackelberg, Market and Equilibrium, which contained pathbreaking studies on oligopolistic markets. In particular, it analyzed the behavior of a ?rm acting as a leader with a ?rst mover advantage in the choice of its production level over another ?rm acting as a follower. That analysis became the foundation of the economic theory of market leaders and is the starting point of my book. In the following pages I develop a generalization of Stackelberg's idea, with a focus on the und- standing of the behavior of market leaders under di ?erent entry conditions, particularly when entry in the market is endogenous. Rather than limiting the analysis to the e ?ects of the market structure on the behavior of the market leaders, I also study the e ?ects of the behavior of market leaders on the market structure. In other words, this book can be seen as an attempt to describe - dogenous market structures where the strategies, the expectations on the strategies of the others, and also the entry decisions are the fruit of rational behavior. In the last few decades, economic theory has put a lot of emphasis on the rational behavior in the choice of actions and strategies and on the rational expectations on these choices. Most ?elds of economic theory have embraced both these elements adopting the rational expectations approach in models with perfect competition ?rst and imperfect competition later.

Inhalt
Competition, Leadership and Entry.- Strategic Commitments and Endogenous Entry.- Stackelberg Competition and Endogenous Entry.- Dynamic Competition and Endogenous Entry.- Antitrust and Abuse of Dominance.- Microsoft Economics.- Epilogue.- References.