未知题型 一个政策模型应该对公共政策具有解释的功能。

单项选择题 Assume that the money demand function is (M/P)d = 2,200 – 200r, where r is the interest rate in percent. The money supply M is 2,000 and the price level P is 2. If the price level is fixed and the Fed wants to fix the interest rate at 7 percent, it should set the money supply at: A、1600B、1700C、2000D、2200

单项选择题 fuzzy