“Potential” Downstream Markets in European Antitrust Law: A Concept in Need of Limiting Principles
John Temple Lang, Dec 22, 2011
Under European Union competition law, a dominant company has a duty to provide important inputs to its competitors. The leading cases involved vertically integrated dominant companies, which operated both harbors and car ferry companies. They were ordered to give access to their downsteam competitors, the other car ferry companies that needed access to the harbors. In these cases it was clear that there were two markets: a market for the supply of harbor services to ferry companies, and a separate market for the supply of ferry services to travelers. If all the other conditions for a duty to contract are fulfilled, the dominant company cannot avoid the duty merely by arguing that it has never granted access before. This led to the statement that it is enough if there is a “potential market” for the supply of the input in question by the dominant company, if the other conditions are fulfilled.
Featured News
Federal Judge Lays Out Rules for States Challenging HPE–Juniper Deal
Jan 2, 2026 by
CPI
Federal Antitrust Suit Targeting Aircraft Engine Sales Practices Is Settled
Dec 31, 2025 by
CPI
CFTC Withdraws Guidance on ‘Actual Delivery’ in Crypto Transactions, Leaving Regulatory Void
Dec 31, 2025 by
CPI
Coalition of State AGs Push Back Against FCC Proposal Seeking to Preempt State AI Laws
Dec 31, 2025 by
CPI
Apple Seeks to Overturn £1.5 Billion UK App Store Antitrust Ruling
Dec 31, 2025 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