Eleanor Fox, Apr 24, 2008
This article examines Microsoft´s offense in withholding full information to its workgroup server operating systems rivals so that they could not interoperate with Microsoft´s systems as seamlessly as Microsoft could. This article agrees with John Vicker´s observation that the Court stretched each of the Magill/IMS criteria defining circumstances so exceptional that they warrant a duty to deal, and thus created confusion as to the limits of exceptionality. It argues that the Court should have resorted to concept rather than factors (principles rather than rules) to define exceptionality, and that, doing so, it might have reached the same outcome, but in a more principled way. The article concludes, however, that the duty-to-deal outcome in Microsoft is not the only logical one; indeed, where a court ends is a function of where it begins.
Featured News
American Express Loses Appeal Seeking Arbitration of Merchants’ Antitrust Claims
Aug 20, 2026 by
CPI
Portugal Rail Market Faces Competition Push as Regulator Targets Barriers
Aug 20, 2026 by
CPI
France Fines Boohoo €2.3 Million as Scrutiny of Fast-Fashion Pricing Intensifies
Aug 20, 2026 by
CPI
California AG Seeks Structural Fixes in Paramount-Warner Antitrust Fight
Aug 20, 2026 by
CPI
Australia Targets Big Tech With New Levy to Fund Local News
Aug 20, 2026 by
CPI
Antitrust Mix by CPI
Antitrust Chronicle® – Antitrust Compliance
Jul 20, 2026 by
CPI
Your Antitrust Compliance Program: A Strong Voice in Your Defense
Jul 20, 2026 by
Joe Murphy
Antitrust Compliance for the AI Pricing Era
Jul 20, 2026 by
Alejandra Uria & Andre Geverola
Race to Report: Antitrust Leniency in the Whistleblower Era
Jul 20, 2026 by
Brian R. Faerstein & Nicole H. Sprinzen
Antitrust-By-Design: Competition Compliance in Digital Markets
Jul 20, 2026 by
Marcos Drummond Malvar, Gabriela Costa Carvalho Forsman & Luciana Mendes