來源: 研究所考試-中山經濟 科目:經濟 問題:Assume that the supply curve of any firm in industry X is S(P)=P/4.if a f irm has 30 units of output, what is its total variable cost? 答案是1800 我的想法當要素產量30,市價為120, 那麼我應該要求出Px,才能以Px *X算出tvc 而用p*MPL=PL,我無法求出MPL, 請問這題是這樣算的嗎,還是沒有這麼複雜~~~