推 yamitigo:大概懂了 感謝各位~~ 01/11 01:10
※ 引述《yamitigo (鴨米鐵劍)》之銘言:
: 學校:FCU
: 教師:吳朝欽
: 科目:經濟學
: 題目:
: Marginal cost equals:
: (i) change in total cost divided by change in quantity produced
△TC
MC = ------ ,在微量變動時, MC = dTC/dQ
△Q
: (ii) change in variable cost divided by change in quantity produced
TC = TVC + TFC
dTC/dQ = d(TVC+TFC)/dQ
= dTVC/dQ + dTFC/dQ
然後dTFC/dQ 會等於0
所以 dTC/dQ = dTVC/dQ
: (iii) the avarege fixed cost of th current unit
: (A) (i) and (ii)
: (B) (ii) and (iii)
: (C) (i) only
: (D) All of the above are correct.
: 我的想法:
: 我個人覺得是(C)
: 但是答案卻是(A)
: 因為邊際成本的話
: 不是應該△Total Costs/△Quantity才對嗎??
: 還有請各位了.....
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