“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.
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