課程名稱︰經濟學二
課程性質︰選修兼A5通識
課程教師︰李曉雲
開課學院：社科院
開課系所︰經濟系
考試日期（年月日）︰103.1.10
考試時限（分鐘）：120 min.
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
※本份試題共八題(二面)，請同學於作答前務必檢查。
※請於答案卷上作答，無須抄題。
※滿分100分。
一、(13%)假設你在考慮中華電信的二種3G行動網際網路月租型方案，方案一，每月支付
450元，享1.5GB(1GB大約等於1000MB)免費傳輸量，超過1.5GB者每MB收費1.64元；
方案二，每月固定支付850元，國內無限瀏覽網際網路。你每月使用3G行動上網之需
求為QD=3500-1000P，其中P為每MB價格，Q為每月上網使用傳輸量(MB)。
(1)在這二種方案下，你每月各會上網使用多少傳輸量(MB)？(4%)
(2)在這兩種方案下，你的消費者剩餘各為多少？請繪圖說明並計算出數值。(6%)
(3)你會選擇哪一種方案，為什麼？(3%)
二、(11%)Suppose that the typical medical procedure has a cost of $570, yet a
health insurance pays only $150 out of pocket. Her insurance company pays
the remaining $420. If the market demand equations: QD=1000-P.
(1) Solve for the equilibrium price and the equilibrium quantity if each
procedure has a price of $570.(4%)
(2) If the government imposes a price ceiling of $450 and subsidizes $120
in this , then how much producer surplus will be in the market?(3%)
(3) Show the quantity of procedures demanded if consumers pay only $150
per procedure. If the cost of each procedure to society is truly $570,
and if individuals have health insurance as just described, will the
number of procedures performed maximize total surplus. How much total
surplus will be in the market?(4%)
三、(14%)為避免油價調漲致使公共運輸全面漲價，政府自100年5月起，提供營業車輛油
價補貼，包括公路與市區客運、計程車、載客小船、船舶運送業等，補助金額隨油
價浮動採價差補貼，價差補貼以每公升5元為上限，每月補貼400公升。假設政府以
稅收來支應補貼，而每輛車平均下來，政府油價補貼每公升為3元，在無每月補貼400
公升上限問題，且公共運輸之石油供需函數分別為QS=-150+3P，QD=300-2P下，其中P
為每公升石油價格，Q為每月石油交易量，
(1)請計算對公共運輸石油市場之消費者剩餘、生產者剩餘、及總剩餘的影響？(9%)
(2)請繪圖說明補貼是否會造成無謂損失。(5%)
四、(17%)Having rejected a tariff on textiles, the president of Isoland is now
considering the same-sized tax on textile consumption. Suppose that the
textile market is described by the following supply and demand equation:
QS=3P；QD=60-2P, and the world price of textiles is 10.
(1) Solve for the import quantity and the quantity produced by the producer
of Isoland before textile consumption tax.(4%)
(2) Compute the quantity consumed and thequantity produced in Isoland under
a textile consumption tax.(4%)
(3) Solve for tax revenue and deadweight loss of textile consumption tax.
(4%)
(4) Which raises more revenue for the government - the consumption tax or
the tariff? Which has a smaller deadweight loss?(5%)
五、(17%)假設某一小國國內蒜頭供需情形如下：QS=3P-22，QD=42-P，請問
(1)如果該小國可以用每單位12元的價格由世界市場進口任何數量的蒜頭，該小國的
蒜頭生產及消費各為多少？(4%)
(2)如果該國政府認為，每單位12元的進口價格太低，將對本國產業不利，於是課徵
20%的從價關稅，這時國內價格為多少？生產及消費各為多少？進口量又為多少？
關稅收入為多少？(10%)
(3)如果政府不用關稅方式，而以配額方式限制進口數量，配額應設定單位？(3%)
六、(12%)There are three industrial firms in Happy Valley. The government wants
to reduce pollution to 120 units, so it gives each firm 30 tradable
pollution permits.
┌──┬────────────┬──────────────────┐
│Firm│Initial Pollution Level │Cost of Reducing Pollution by 1 Unit│
├──┼────────────┼──────────────────┤
│ A │ 70 units │ $20 │
├──┼────────────┼──────────────────┤
│ B │ 80 units │ 25 │
├──┼────────────┼──────────────────┤
│ C │ 60 units │ 15 │
├──┼────────────┼──────────────────┤
│ D │ 50 units │ 10 │
└──┴────────────┴──────────────────┘
(1) Who sells permits and how many do they sell? Who buys permits and how
many do they buy? What is the total cost of pollution reduction to
this situation?(9%)
(2) How much higher would the costs of pollution reduction be if they
permits could not traded?(3%)
七、(6%)中國國防部2013年11月公告釣魚台列嶼劃入「東海防空識別區」範圍。過去釣
魚台列嶼是劃入日本防空識別區內，中國此次自行將釣魚台列嶼劃設到東海防空識
別區內，勢將拉高日本與中國之間的衝突與對立。請以公有資源所學說明應如何解
決釣魚台列嶼的主權問題？
八、(10%)Please answer the following quetions:
(1) Explain why the marginal-cost curve crosses the average-total-cost
curve at its minimum?(5%)
(2) If the city government implements a lump-sum tax of NT$5,000,000 on
each producer of cars. Which of the following curves- average fixed
cost, average variable cost, average total cost, and marginal cost-
would shift as a result of the lump-sum tax? Why? Show this in a graph.
(5%)
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