武汉大学经济与管理学院《西方经济学》试题(A卷)月日.doc

武汉大学经济与管理学院 《西方经济学》试题(A卷) 2007年7月6日 主讲：陈忠斌　　　　　　　　审核： 姓名: 学号: 分数:　　　 1、What is the difference between the aggregate supply and aggregate demand model used in macroeconomics and microeconomics？（15） 2、Suppose an economy’s real GDP is $30,000 in year 1 and $31,200 in year 2. What is the growth rate of its real GDP? Assume that population was 100 in year 1 and 102 in year 2. What is the growth rate of GDP per capita?（15） 3、Assume the consumption schedule for a private open economy is such that C = 50 + 0.8Y. Assume further that planned investment and net exports are independent of the level of income and constant at Ig= 30 and Xn = 10. Recall also that in equilibrium the real output produced (Y) is equal to the aggregate expenditures: Y = C + Ig + Xn. (a) Calculate the equilibrium level of income for this economy. (b)What will happen to equilibrium Y if Ig changes to 10? What does this tell you about the size of the multiplier?　 （Score:15） 4、Why is each of the following incorrect? State the correct proposition. （15） Marginal revenue product is calculated as total revenue earned per worker. Under competition, workers get paid the total output produced minus the costs of raw materials. 5、Draw the supply and demand curves for the oil market.. Now suppose that a workable electric car shifts demand away from oil. Draw the new demand curve and the new equilibrium. Describe the outcome in terms of the price of oil, the quantity consumed, and the total income of the oil producers. 6.. Using the supply and demand analysis of interest, explain how each of the following would affect interest rates in capital theory: （15）households. c. A 50 percent tax on the return on capital (in the short run) 7、Suppose thatTom produce half kilogram beef and two kilogram potatoes per hour. Jerry produces 1.5 kilogram beef and 3 kilogram potatoes per hour. Who should produce beef? Who should produce potato? （10）武汉大学经济与管理学院 《西方经济学》(A卷)参考答案 2007年7月6日 1. 宏观