张同学2019-06-28 23:19:47

Following a sharp increase in the price of energy, the overall price level is most likely to rise in the short run: A and remain elevated indefinitely unless the central bank tightens. B but be unchanged in the long run unless the money supply is increased. C and continue to rise until all prices have increased by the same proportion. 请老师解释一下B答案的后半句。