doc__table__146

| 106. | Market shares reflect the relative position of suppliers on the market and, as such, can be very useful in assessing market power. However, market shares are not the sole indicator of an undertaking’s strength in the market (144). Other factors, such as barriers to entry or expansion, including those derived from scale or network effects, access to specific assets and inputs, as well as product differentiation and degree of substitutability, may also be relevant, depending on the specific facts of the case. The Commission’s guidelines on substantive assessments in competition cases explain this further (145).

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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.