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COMMUNICATION FROM THE COMMISSION Commission Notice on the definition of the relevant market for the purposes of Union competition law · European Union

The Commission may use evidence of past substitution not only to define markets but also to carry out its competitive assessment, in particular to determine whether the undertaking(s) involved compete closely with each other or for the quantitative assessment of likely effects. See, for example, case M.8792 T-Mobile NL/Tele2 NL, paragraphs 704-720 and 798-823.

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Source: EUR-Lex (Cellar) · retrieved 2026-09-07 · Text as adopted (Official Journal); later amendments are not incorporated in this text.