大学初级微观经济学Which of the following would occur if a single farm in perfect competition lowered its price below the long-run equilibrium market price?\x05A)\x05All other farms would lower their prices,too.\x05B)\x05It would not be maxim

大学初级微观经济学
Which of the following would occur if a single farm in perfect competition lowered its price below the long-run equilibrium market price?
\x05A)\x05All other farms would lower their prices,too.
\x05B)\x05It would not be maximizing profit.
\x05C)\x05It would get a larger share of the market,and this would be profitable for it.
\x05D)\x05Other farms would be driven out of the industry.
\x05E)\x05Other farms would enter the industry.

在我看来鉴于：
完美竞争条件
第1：市场上有大量的供货商.任何1个供货商都不能够影响市场 　　第2：产品一致,所有供货商提供的产品都是相同的.　　第3：完美信息,所有的供货商都知道其他公司的价格设定.　　第4：同样的使用权,所有的供货商都有全部产品技术的使用权 　　第5：自由进入和离开,所有的供货商都可以自由的进入和离开市场
在长期平衡中长期来说,完美竞争市场中公司的数目是有限制的,假如1个公司A在这个市场中获得了利润,当一个新的竞争者进入市场后,A公司不再能获得利润,所以有一些公司就会选择离开这个市场.在长期平衡中的完美市场,利润的比例是相同的.同时进入和离开市场的公司时间也是相同的.
所以我选B