經濟學的問題 - 考試

By Quanna
at 2013-10-16T14:04
at 2013-10-16T14:04
Table of Contents
99年鐵路高員三級
題目:已知某獨占者的邊際生產成本為10元,其商品定價為20元。
現政府對該廠商課徵從量稅6元,若需求線是一條雙曲線,
則課稅後商品價格會增加多少元?
答案:12元(蔡老師的課本的解答)
我的想法:課徵6元的稅讓MC線垂值上升6單位,而對應的AR線斜率
為MR線的0.5倍,因此相同的Q變化量為使商品價格上升6*0.5=3元
可是答案卻是12元,讓我覺得很奇怪,煩請高手解答,謝謝。
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