几道宏观经济学的题目 求解

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1.In the context of the money market equilibrium explain the short run effects of a decrease of money supply on the price of bonds. What should happen in the long run instead? Use a diagram to support your answer.

2.Suppose the economy is populated by two groups of people, the rich group and the poor group. The two groups are equal in size. There is evidence that the poor group has a higher propensity to consume than the rich group. In the context of the goods market equilibrium explain the overall effect on output of an increase in taxes on the rich group and a decrease in taxes on the poor such that total tax revenues stay constant. Use a diagram to support your answer. In your view, is the policy proposed a “good” policy? Explain.

3.Suppose that the government decreases government expenditure.  However the central bank wants to keep fixed the level of output in the economy. In the context of the IS-LM model explain what the central bank should do in order to achieve its objective. Use a diagram to illustrate your answer.

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关键词：宏观经济学 宏观经济 经济学 equilibrium expenditure decrease evidence instead support 经济学

第三题，ZF支出G减少了，IS曲线左移，这样带来的结果是收入（或产出）Y降低，利率·（r）下降，为了保住产出，那么，应该让LM曲线右移，那么ZF应该用扩张性货币政策来达到