课程名称：个体经济学 课程性质：选修 课程范围：个经课本ch4 ch6 开课教师：郑鸿章 开课学院：商学院 开课系级：国贸二 考试日期(年月日)：2009/01/08 考试时限(Mins)：120 试题本文： 一、若某甲对X、Y财之效用函数为： u(X,Y) = ln (X^2 乘以 Y^2) 则(1)试求出此人普通需求曲线。 _ 　_　　 _ (2)若Px=4，Py=6，M(所得)=120时，此人会消费多少X及Y？ 　(3)试求出此人Y财受所得补偿之需求曲线。 二、请建立income-leisure model导出後弯形之劳动供给曲线， 　　并解释此曲线型状之意义。 三、给定以下生产函数：Q=1.4L^(0.7)k^(0.35)， 请分别求出劳动与资本的需求弹性， 并说明其经济意涵。 四、suppose you are in charge of a toll bridge that costs essentially nothing to operate. the demand for bridge crossings Q is given by p=15-(1/2)Q a.draw the demand curve for bridge crossings. b.how many people would cross the bridge if there were no toll? c.what is the loss of consumer surplus associated with a bridge toll of $5 d.the toll-bridge operator is considering an increase in the toll to $7. at this higher price, how many people would cross the bridge? would the toll- bridge revenue increase or decrease? what does your answer tell you about the elasticity of demand? e.find the lost consumer surplus associated with the increase in the price of the toll from $5 to $7 五、the production function for the personal computers of DISK, Inc., us given by q=10K^(0.5)L^(0.4) where q is the number of computers produced per day, K is hours of machine time, and L is hours of labor input. DISK's competitor, FLOPPY, Inc., is using the production function q=10K^(0.6)L^(0.4) a.if both companies use the same amounts of capital and labor, which will generate more output? b.assume that capital is limited to 9 machines hours, but labor is unlimited in supply. in which company is the marginal product of labor greater? explain. --

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