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发表于 2013-8-18 12:08
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| 是这个题目吗？ 19. If a industry’s Herfindahl ratio=0.14, which means that the industry A. Is a perfect competition market B. Is a monopoly market C. Has Some concentration Correct answer: C HHI is low in a highly competitive industry. HHI小于0.1，代表low concentration；0.1-0.18是Some concentration，或者是moderate concentration；大于0.18是high concentration。这个题目是0.14，在0.1-0.18这个区间，所以答案是C |
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