The figure below depicts the short-run market equilibrium in a perfectly competitive market and the cost curves for a representative firm in that market. Assume that all firms in this market have identical cost curves.
In the long run equilibrium in this market:
A. price will equal $5, and there will be 20 firms in the industry.
B. price will equal $5, and there will be 10 firms in the industry.
C. price will equal $5 and total output will equal 500 units, but there is not enough information to determine how many firms will be in the industry.
D. price will equal $8, and there will be 20 firms in the industry.
Answer: A
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