[开课学院]: 商学院 [开课系所]: 经济系 [课程名称]: 个体经济学(一) [老师名称]: 利菊秀 老师 [开课学期]: 学年 [类型]: 98-1期末考 利菊秀可以说很好过的老师啊 考的几乎都是上课说过的 考基本而已 看到英文不要怕 因为可以带字典跟计算机 1. Assume that there are two goods, x and y, Px and Py are corresponding to their prices.Please show thw substitution effect(SE),income effect(IE),and total effect(TE) when the prices of x goods decreases,if x is a inferior goods but NOT a Giffen goods (Please explain your analysis in diagram). 2. John has the following utility function for x and y based on the following utility: U(x,y)=2x^2y (1)Derive John's MRS for x and y (2)Derive John's optimum consumption of x and y if her income I=100 with price Px=4 and Py=2 (3)Derive John's demand function for x and y 3. Consider a production function of two inputs, labor and capital given by Q=10L^1/4K^3/4 . Let the price of labor w=1, the price capital r=4 (1)Please derive the MRTS for this production function. (2)Please show the cost-minimizing quantity of labor(L*) and capital(K*) if Q=1000 (3)Find the long-run total cost function (4)Find the expansion line. (5)If capital is fixed,where K=5,please find the short-run total cost function 4. Please calculate the MRTS for following production function: (a) Q=2L+K (b)Q=min(16L,4K) (c)Q=10LK 5. A firm has the following short-run cost function TC(Q)=Q^3-8Q^2+30Q+5 Please derive (1)marginal cost function (MC) (2)the average variable cost (AVC) (3)average fixed cost (AFC) (4)average total cost (ATC) (5)the Q corresponding to minimum AVC 6. Please explain the following economic terms: (1)economic of Scope (2) Isoquant (3)bandwagon effect (4) short run --

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