A.绝对购买力平价对汇率的预测比相对购买力平价更准确
B.绝对购买力平价不成立时,相对购买力平价仍可能成立
C.绝对购买力平价成立可以推出相对购买力平价成立
D.以上说法都不正确
Large-scale wars typically bring a suspension of international trading and financial activities.Exchange rates lose much of their relevance under these conditions,hut once the war is over governments wishing to fix exchange rates face the problem of deciding what the new rates should be.The PPP theory has often been applied to this problem of postwar exchange rate realignment.Imagine that you are a British Chancellor of the Exchequer and World War I has just ended.Explain how you would figure out the dollar/pound exchange rate implied by PPP.When might it be a bad idea to use the PPP theory in this way?