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Are Asian-Pacific Real Exchange Rates Mean-Reverting?

机译:亚太地区实际汇率是否在回落?

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1.IntroductionVariations in the real exchange rate (RER) represent deviations from the purchasing power parity (PPP),a cornerstone in most of the open-economy macro models.The stationarity of RER has been tested to check whether PPP holds in the long run.Early studies using the conventional tests based on linear models failed to reject the null of unit root in the RER during the recent floats,implying the absence of any long-run tendency toward PPP (see,Froot and Rogoff,1996;Sarno,2005 for surveys).This was viewed as a result of low power of the statistical tests employed in rejecting a false null hypothesis.Failure to reject the null of unit root in the RER potentially poses troubles in building models of explaining many macro phenomena in the open economy context.
机译:1引言实际汇率(RER)的变化代表与购买力平价(PPP)的偏差,购买力平价(PPP)是大多数开放经济宏观模型的基石。早期使用基于线性模型的常规测试进行的研究未能拒绝最近一次浮动期间RER中单位根的零值,这意味着长期没有购买力平价的趋势(见Froot和Rogoff,1996; Sarno,2005)。这被认为是拒绝假的虚假假设所使用的统计检验能力低的结果。未能拒绝RER中单位根的虚假可能会给建立解释公开的许多宏观现象的模型带来麻烦经济背景。

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