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Economics (AS & A Level) · May / June 2024 · Paper 11 · Question 7

9708Demand and supply curves

Four firms supply the market. The market supply is 50 units at $20 and 100 units at $40. The table shows the market share of each firm at the two prices. Which firm does not have a normal upward-sloping supply curve?

  1. A10 at $20, 10 at $40
  2. B20 at $20, 50 at $40
  3. C30 at $20, 20 at $40
  4. D40 at $20, 20 at $40

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Correct answer: D. 40 at $20, 20 at $40

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