189****66162024-01-24 15:19:41
在完全竞争市场中,长期无法获得超额利润的原因是什么
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Johnny2024-01-25 14:59:08
同学你好,教材原文如下:Firms that are operating in a competitive environment with no barriers to entry from other competitors can expect, in the long run, to be unable to earn a positive economic profit; the excess rate of return would attract entrants who would produce more output and ultimately drive the market price down to the level at which each firm is, at best, just earning a normal profit.
在完全竞争市场中,如果一旦能够获取超额利润,由于进入门槛很低,就会新的厂家不断涌入这个市场,导致整个市场的供给上升,使得市场上的产品价格下降,最终P=MR=ATC=SMC,把超额利润都给抹掉了,此时整个市场达到均衡
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