The capacity for such adjustments is the hallmark of the flexible exchange-rate system; indeed, for more than four decades, it has proved time and again to be the key to global macroeconomic stability. As long ago as the period following World War I, countries that adopted an independent monetary policy recovered faster than those that remained locked into the gold standard.
能做出这样的调整是浮动汇率制度的特点；事实上，四十多年来，这一再证明是全球宏观经济稳定的关键。在一战后的岁月中，采取独立货币政策的国家复苏速度要快于仍采取金本位的国家。