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Antitrust Chronicle® – Market Definition

Antitrust Chronicle® – Market Definition

Antitrust Chronicle® September 2025 Volume 1

Dear Readers, Market definition is perhaps the most important part of any antitrust analysis. It is the necessary starting point in all merger reviews and abuse of dominance cases. Yet its role is increasingly questioned. This CPI Antitrust Chronicle takes a clear-eyed look at those questions. Herbert Hovenkamp opens with a...

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In this issue

Antitrust Chronicle® – Market Definition
CPI
Sep 17, 2025
Finding Monopoly: Antitrust Market Definition
Herbert Hovenkamp
Sep 17, 2025
Drawing Boundaries, Building Legitimacy: A Revamped View of Market Definition
Magali Eben
Sep 17, 2025
The Business Revolution and Antitrust Market Definition: The Role of Time
Daniel F. Spulber
Sep 17, 2025
All We Have Is All We Need: A Blueprint to Defining and Using Ecosystems in Antitrust
Konstantinos Stylianou, Nicolo Zingales
Sep 17, 2025
Do We Have a Framework for Defining Labor Antitrust Markets? Guidance And Case Studies in the U.S., UK, and EU
Motaz Al-Chanati, Johannes Böken, J. P. Bruno, Elisa Mariscal
Sep 17, 2025
Brick-and-Mortar Transaction Review in the Age of E-Commerce
Elizabeth Suarez, Kara King, Gabriella Small, Ioana-Virginia Motoc, Sam Bellet
Sep 17, 2025
Revisiting the Brown Shoe Indicia for Defining Markets
Roger Blair, Kamal Sodhi
Sep 17, 2025

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