Multiple Choice
Firms in monopolistic competition make zero economic profit in the long run because
A) their costs rise over time.
B) the demand they face decreases as rival firms offer slightly differentiated products for sale in the same market.
C) their marginal cost curves slope upward.
D) the market eventually becomes perfectly competitive.
E) the four-firm concentration ratio gradually shrinks.
Correct Answer:
Verified
Correct Answer:
Verified
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