Dennis Carlton, Sam Peltzman, Nov 05, 2010
This article introduces the reprint of George Stigler’s A Theory of Oligopoly, first published in 1964. Stigler’s article was a landmark in the theory of industrial organization and in the practice of antitrust. For industrial organization economists it focused attention on the sorry state of oligopoly theory and, using information theory, proposed a theory that could explain the deviations of oligopoly pricing from competitive pricing. For antitrust practitioners the article came to have an important impact on the application of antitrust law, especially in the merger area. Indeed, it is not an understatement to say that Stigler’s theory of oligopoly remains a central pillar in merger policy in most, if not all, antitrust regimes around the world
Featured News
Publishers Ask US Court to Let Them Join Google AI Copyright Fight
Jan 18, 2026 by
CPI
California Investigates xAI for Role in Deepfake Image Generation
Jan 18, 2026 by
CPI
Google Asks Judge to Pause Data-Sharing Order While Appealing Antitrust Ruling
Jan 18, 2026 by
CPI
FTC Signals Closer Look at Big Tech Acqui-Hires as Antitrust Concerns Grow
Jan 18, 2026 by
CPI
Italian Authority Probes Monetization Practices in Popular Mobile Games
Jan 18, 2026 by
CPI
Antitrust Mix by CPI
Antitrust Chronicle® – CRESSE Insights
Dec 16, 2025 by
CPI
Learning from Divergence: The Role of Cross-Country Comparisons in the Evaluation of the DMA
Dec 16, 2025 by
Federico Bruni
New Regulatory Tools for the EU Foreign Direct Investment Screening and Foreign Subsidies Regulation
Dec 16, 2025 by
Ioannis Kokkoris
“Suite Dreams”: Market Definition and Complementarity in the Digital Age
Dec 16, 2025 by
Romain Bizet & Matteo Foschi
The Interaction Between Competition Policy and Consumer Protection: Institutional Design, Behavioral Insights, and Emerging Challenges in Digital Markets
Dec 16, 2025 by
Alessandra Tonazzi