Fiona Scott Morton, Dec 20, 2013
This article lays out the economics of competition between branded and generic pharmaceuticals and its welfare consequences. I explain the logic behind so-called “pay-for-delay” or “reverse payments” in the context of the current IP environment where weak (probabilistic) patents are frequently granted by the PTO. The article goes on to relate the Supreme Court decision in Activis to these concepts. I argue that the “scope of a patent” is closely related to its probability of being valid. !e Supreme Court dissenting opinion states that IP owners should be allowed to operate within the scope of the patent. For a very weak patent, that might be a very limited scope and bring the dissent into agreement with the majority opinion that a weak patent owner should not be allowed to create market power where the patent did not grant it. However, the dissenting opinion closes with a rejection of using the concept of probabilistic patents in legal analysis.
Featured News
FTC Asks Appeals Court to Reinstate Expanded Merger Disclosure Rule
Feb 19, 2026 by
CPI
Lawmakers Seek GAO Review of State and Federal AI Regulations
Feb 19, 2026 by
CPI
UK Flags Editorial Content Concerns in Getty-Shutterstock Merger
Feb 19, 2026 by
CPI
DOJ Examines Warner Bros. Sale as Theater Chains Voice Concerns
Feb 19, 2026 by
CPI
Australia Court Fines Mobil A$16 Million Over Misleading Fuel Claims
Feb 19, 2026 by
CPI
Antitrust Mix by CPI
Antitrust Chronicle® – The Gig Economy
Feb 19, 2026 by
CPI
Market Power and Governance Power: New Tools for Antitrust Enforcement in the Decentralized Gig Economy
Feb 19, 2026 by
Seth C. Oranburg
10 Years of Labor Antitrust Guidance: Lessons for Workers and the Gig Economy
Feb 19, 2026 by
Richard Powers & Michael Swerdlow
Antitrust & Gig Workers: Labor Exemption As Protection
Feb 19, 2026 by
Marina Lao
Beyond Non Competes: Platform Tethered Non Circumvention Clauses for Digital Platforms
Feb 19, 2026 by
Scott Nelson, Hugh Hollman & John Baker