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Question
Suppose a ten firm industry has total sales of $35 million per year. The largest firm have sales of $10 million, the third largest firm has sales of $4 million, and the fourth largest firm has sales of $2 million. If fifth through tenth largest firms combined have annual sales of $12 million, the four-firm concentration ratio for this industry is
A) 45.7 percent.
B) 80 percent.
C) 65.7 percent.
D) none fo the above.
Answer
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