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    Economics A-Level

    Concentration ratios

    What Concentration ratios means in Economics A-Level, as defined for AQA.

    Definitions of Concentration ratios

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    Reference: AQA

    Measures of the degree of concentration, such as the five-firm concentration ratio, showing that a few large firms dominate total market output.
    AQA · Oligopoly
    A measure used to define oligopoly structurally, where a few large firms control a large percentage of the market share.
    AQA · Oligopoly

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