Suppose that total sales in an industry in a particular year are $600 million and sales by the top four sellers are $200 million, $150 million, $100 million, and $50 million, respectively. We can conclude that:
A. price leadership exists in this industry.
B. the concentration ratio is more than 80 percent.
C. this industry is a differentiated oligopoly.
D. the firms in this industry face a kinked demand curve.
Answer: B
Economics
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Economics