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| 10. | Market definition makes it possible to calculate market shares, which the Commission may use, among other elements, to assess an undertaking’s competitive strength for the purposes of the competitive assessment. When analysing market power, the Commission may also look at trends which are likely to continue or foreseeable developments in relation to such market shares, as well as at constraints that may not be evident from market shares alone, as further explained in paragraphs 106 and 113. The Commission may also use market shares as a first screening tool to assess whether competition concerns may arise. Market share thresholds are one of the parameters used to determine the scope of the block exemption regulations applying Article 101(3) TFEU to certain categories of agreements (21); to assess whether there may be an effect on trade under Articles 101 and 102 TFEU (22), and to identify concentrations deemed from the outset not to raise competition concerns under the Merger Regulation with respect to any markets or with respect to certain markets (23).

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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.