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GLOSSARY

Collective dominance definition

What does Collective dominance mean?

article 102 TFEU and section 18 of the Competition Act 1998 prohibits the abuse of a dominant position 'by one or more undertakings' giving rise to the possibility that distinct undertakings may together hold a collectively dominant market position as a result of close economic links between them, or if the market structure enables the undertakings to present themselves or act together on the market as a collective entity.

Oligopolistic markets can have certain characteristics enabling separate undertakings to act as one through tacit collusion. A collectively dominant position is achieved when each member of the dominant entity has the ability to know how other members are behaving in order to monitor compliance with the common policy (i.e. market transparency), there must be incentives against departing from the common policy so that tacit coordination is sustainable, and the foreseeable reaction of other market participants cannot jeopardise the results expected from the common policy. See the ruling of the General Court (formerly CFI) in Case T-193/02 Laurent Piau v. Commission [2005] ECR II-209.


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