但是，近年来均值回归理论对随机漫步理论提出了挑战。
But, in recent years, Average Value Return Theory gave a challenge to the Random Walk Theory.
本章简要总结了学者们关于均值回归理论的实证研究方法。
This chapter briefly summarizes the average return of the scholars on the theory of empirical research methods.
均值回归理论就是长期趋势可预测理论与方法的主要代表。
The theory is that the mean reversion to long-term trends can be predicted with the methods of the major representative.
均值回归理论认为，从长期来看，股票收益率呈均值回归，即长期收益率呈负自相关。
According to the mean reversion theory, in the long term, the yield rate of stock price appears to follow the rule of mean reversion and negative autocorrelation.
许多学者发现股票市场具有均值回归特性，但是，也有一些学者找到了反对均值回归理论的证据。
Many scholars have found that the stock market average return of property; However, there are some scholars find mean reversion theory against the evidence.
本章简要分析了实证研究的结果，并提出市盈率均值回归的广义层面，最后，总结了均值回归理论的不足之处。
This chapter provides a brief analysis of the results of empirical research and proposes that the Price-earnings ratio will return to its average value in the generalized dimension.
购买力平价假说之谜的实证表象是均值回归时间较长，致使购买力平价理论在短期内不成立。
The empirical data of PPP enigma are that time for mean conversion is long and PPP theory is untenable in short time.
购买力平价假说之谜的实证表象是均值回归时间较长，致使购买力平价理论在短期内不成立。
The empirical data of PPP enigma are that time for mean conversion is long and PPP theory is untenable in short time.
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