試題詳解

14. Which of the following is false?
(A) In the short run, policymakers face a tradeoff between inflation and unemployment.
(B) The decrease in output associated with reducing inflation is less if the policy change is announced ahead of time and is credible.
(C) Unemployment can be changed only by the use of government policy.
(D) Events that shifts the loag-run Phillips curve right, shift the long-run aggregate supply curve left.