Economics 9708 · AS & A Level · 7.6

7.6 — practice question

What does a four-firm concentration ratio of 25% mean?

  • AThe largest four firms’ market share totals 25%.
  • BThe largest four firms have a market share of 25% each.
  • CThere are only four firms in the industry.
  • DThe largest firm has a 25% market share.

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