购买力平价之谜理论的新进展及其实证检验

购买力平价作为其他汇率学说的理论基础和现实中汇率决定的重要依据,仍然备受关注。特别是伴随着计量技术和数理经济的进步与发展,大量的实证研究文献不断累积。购买力平价之谜便是其中的重要命题之一。文章首先简要回顾了购买力平价的理论脉络和购买力平价之谜的内涵,然后采用中国、日本和美国三国的数据,利用最小二乘法、单位根、协整和Granger因果关系检验等计量技术多角度验证了购买力平价之谜和购买力平价的有效性,并对购买力平价对我国的适用性进行了解释。

The New Development and Empirical Study of PPP Puzzle Theory

As the foundation of other exchange rate determination theories and standard rule to adjust the level of exchange rate, Purchasing Power Parity has received special attention, especially with the company of rapid technical progress of Econometric and development of mathematics economics and the accumulation of documentations. The PPP puzzle is one of the most important issues. This article firstly reviews the development of PPP theory and its implications. Then the writer carries out test on the its Viability by making use of such tools as OLS, Unit roots, Cointegration and Granger cause - effect test. And lastly, a conclusion of the empirical study has been drawn and its applicability in China is demonstrated.