[考題] 經濟學
假設一獨占廠商的需求曲線為P=60-2Q,成本函數為TC=100+Q^2,
在利潤枉大化下,下列何者正確?
A)均衡價格為50 B)均衡產量為10
C)總收益為500 D)利潤為150
答案是B
光是第一行那兩個式子,我實在不知道怎麼下手
還好這題剛好有說明,我就看了一下
MR=60-4Q , MC=2Q
有這兩句就能解出答案了,但我一直不知道,這兩個是怎麼得出來的
找了一下課本,不知道是寫得太簡略還是什麼的,總之我找不到相關的說明
所以想請問一下版友,這兩句是根據什麼觀念?還是怎麼推出來的?
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