課程名稱︰經濟學甲
課程性質︰必修
課程教師︰李顯峰
開課學院：管理學院
開課系所︰國企一雙班
考試時間︰2006.11.20
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :1.Suppose the president of a manufacturing firm,which sells an
industrial good in a competitive market.Further an economist of that firm gives
the president following supply and demand functions:
Demand function: Qd=60-2p
Qs=-15+p
Where P is the unit price of that good,Find:
(1)what is the consumer surplus in this market?What is the producer surplus?
Now suppose the government has given a subsidy on this good,and imposed a price
floor of $27.0 per unit.Identify the following:(2)the deadweight loss;(3)the
transfer of producer surplus to consumers surplus or the transfer of consumer
surplus to producers(4)the remaining producer surplus;(5)the remaining consumer
surplus.
2.（1）試繪圖說明為何農產品（如稻米、麥、水果等）價格的長期趨勢呈現下跌現象？
（提示：應用價格彈性及所得彈性說明）
（2）自古以來常感嘆曰：『谷賤傷農』，與上述（1）的現象是否相同？理由為何？
3.(1)If the price elasticity of demand for one of Books Co.博客來書店
（www.books.com.tw)books is inelastic(0.45),then as its price rises,what will
the firm's total revenues increase or decrease from sale of the book?(hint 提示
：請先列出總收益與價格彈性關係的公式，在回答。)What implication does this have
for Books Co.'s pricing strategy(定價策略)and for the total revenue Books Co.
receives from sales of the book as the book's price gets higher and higher?
(2)Over time,more and more of Books Co.'s competitors have gone online.What
implication does this have for the price elasticity of demand for Books Co's
products ?Explain.
4.假若台灣內部市場上，對木材的需求與供給函數分別如下：
需求函數 P=10-0.5Qd
供給函數 P=-2+Qs
假若國際市場上，木材的單位價格為$3，且木材能自由進口。試求：
（2）政府的關稅稅收，（3）課徵$1關稅後的消費者剩餘，（4）課徵$1關稅後的生產者
剩餘，（5）課徵$1關稅後的社會福利無謂損失（deadweight loss）。
5.某種食品的需求與供給函數分別如下：
需求函數 Qd=30-2p
供給函數 Qs=-3+p
若政府對生產者課徵定額稅$1。試求：
（1）課稅後的均衡價格及交易量為何？
（2）政府的稅收為何？
（3）社會福利的無謂損失。
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