本题目来源于试卷: IB Economics Unit 3.4: Macroeconomics - Monetary Policy & Fiscal Policy，类别为 IB经济学
[单选题]
Suppose an economy is in short-run equilibrium at $Y_1$ and $PL_1$ as shown in the figure above, select which of the statements from the choices below is true:
I.an inflationary gap exists
II.the inflationary gap can be reduced by implementing contractionary monetary policy, that shifts $AD_1$ to $AD_2$
III. a contractionary monetary policy will lower the equilibrium price level
IV.implementing contractionary monetary policy can transform the inflationary gap into a recessionary gap
A. I only
B. I and II only
C. I, II, and III only
D. I, II, III, and IV
参考答案: D
本题详细解析:
Statement I is true: when the short-run mwut) ln331lk-: ptbr real GDP equilibrium level is greater than the full employment level of wn1:mpktr3llt -3)ub GDP, the economy is said to be experiencing an inflationary gap.
Statement II is true: to address an inflationary gap, contractionary policy is required to decrease aggregate demand, which involves shifting the AD curve to the left.
Statement III is true: shifting AD leftward reduces the aggregate price level.
Statement IV is true albeit unusual: sometimes contractionary policy measures such as rapid interest rate hikes can overshoot the desired target, potentially leading to a recession.
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