課程名稱：個體經濟學 課程性質：必修 課程範圍：課本第4章+上課筆記 開課教師：鄭鴻章 開課學院：商學院 開課系級：國貿系 考試日期(年月日)：2012/1/6 考試時限(Mins)：100分 試題本文： 一、請建立所得-休間模型詳細推導後彎之勞動供繪曲線，並解釋其經濟意義 (15%) 二、在某一財貨消費組合中，若X財之需求函數為X = 5 + I/5P，其中I為消費者所得，P為 X財之價格，另一財貨Y之價格固定；假設現在令I0 = 100，且X財之價格由最初之P0 = 5上升至P1 = 6，則請建立一消費模型據以推導Slutsky Equation，並計算其替代效果 與所得效果分別為何？並解釋為何替代效果必定為負，但所得效果卻不一定？最後說 明何以季芬財必為劣等財，但劣等財不一定為季芬財？ (30%) 三、攻府為得到某特定稅額，可以採取課徵所得稅或貨物稅的方式，請請利用經濟分析工 具說明何種課徵方式較優？(Hint:課徵貨物稅方式廠商可以完全轉嫁繪消費者負擔) (15%) 四、Connie has a monthly income of $200 that she allocates among two goods: meat and potatoes. a.Suppose meat costs $4 per pound and potatoes $2 per pound. Draw her budget constraint. b.Suppose also that her utility function is given by the equaion U(M,P) = 2M + P. What combination of meat and potatoes should she buy to maximize her utility? (Hint:Meat and potaoes are perfect substitutes.) c.Connie's supermarket has a special promotion. If she buys 20 pounds of potatoes (at $2 per pound), she gets the next 10 pounds for free. This offer applies only to the first 20 pounds she buys. All potatoes in excess of the first 20 pounds (excluding bonus potatoes) are still $2 per pound. Draw her budget constraint. d.An outbreak of potato rot raises the price of potatoes to $4 per pound. The supermarket ends its promotion. What does her budget constraint look like now? What combination of meat and potatoes maximizes her utility? (20%) 五、Maurice has the following utility function: U(X,Y) = 20X + 80Y - X^2 - 2Y^2 where X is his consumption of CDs with a price of $ and Y is his consumption of movie videos, with a rental price of $2. He plans to spend $41 on both forms of entertainment. Determine the number of CDs and video rentals that will maximize Maurice's utility. (20%) Happy New Year! and Good luck! --

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