略论"二分法"的发展和演变

是否承认货币经济与实物经济的"二分法",而今已成为划分宏观经济学派的重要标准之一.古典学派认为,货币经济对实物经济没有任何影响,二分法总是成立的.维克塞尔借助于价格变动说明二分法只有在货币利率与自然利率相等时才成立,而通常情形下是不成立的.凯恩斯直接利用产量与就业的决定及其变化彻底破除了二分法.弗里德曼则依据永久性收入假说在长期分析中复活了二分法.

On the Evolution of "the Dichotomy between Monetary Economy and Real Economy"

Nowadays whether one accept the dichotomy between monetary economy and real economy or not, has been taken as one of the important standards of classifying macroeconomic schools. The classical school held that monetary economy can't affect real economy and therefore the dichotomy is always tenable. J.G.Knut Wicksell however proved that the dichotomy is generally untenable unless monetary rate of interest is just equal to natural rate. J.M.Keynes denied the dichotomy by direct analyses of product and employment, whereas M.Friedman revived the dichotomy in a long run analysis according to his permanent income hypothesis.