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Concentration Ratio (AS Micro)

AQA, Edexcel, OCR, IB, Eduqas, WJEC

Last updated 21 Mar 2021

The concentration ratio measures the combined market share of a leading cluster of businesses in a clearly defined market. In the case of retail grocery in the UK for April 2016, the top five firms had 78% of the market and the leading eight firms took 93% of the total value of sales.

Concentration Ratio (AS Micro)

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