假设货币需求函数是：(M/P) d =1000-100r。式中，r为用百分比表示的利率。货币供给M是1,000，而物价水平P是2。 a．画出实际货币余额的供给与需求。 b．均衡利率是多少? c．假设物价水平是固定的。如果货币供给从1000增加到1200，均衡利率会发生什么变动? d．如果美联储希望利率提高到7%，应该确定多少货币供给? Suppose that the money demand function is (M/P) d =1000-100r, where r is the interest rate in percent. The money supply M is 1,000 and the price level P is 2. a．Graph the supply and demand for real money balances. b．What 1S the equilibrium interest rate? c．Assume that the price level is fixed. What happens to the equilibrium interest rate if the supply of money is raised from 1,000 to 1,200? d．If the Fed wishes to raise the interest rate to 7 percent, what money supply should it set?