問題詳情
17. Once people believe the Fed's commitment to keep unemployment at the natural rate, the Fedcan reduce unemployment below the natural rate
(A)in both the short run and the long run.
(B) in both the short run and the long run, but only after changing peoples' expectations.
(C) in the long run, but not the short run.
(D)in the short run, but not in the long run.
(E) none of the above
參考答案