As firms enter a monopolistically petitive market in the long run:When a second firm enters a monopolist's market,the monopolist's marginal revenue curve will:A) shift to the left as its initial demand curve shifts to the left.B) shift to the right as its initial demand curve shifts to the right.C) remain the same.D) none of the above 13) Which of the following is not a characteristic of a monopolistically petitive market?A) Firms hold patents on their products.B) The products that firms sell are slightly different.C) Firms have some control over price.D) There are no artificial barriers to entry.Answer: 英语
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【答案】 随着企业开始进入长期垄断型的竞争市场