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Smooth structural breaks and the stationarity of the yen real exchange rates

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  • Su Zhou
  • Ali M. Kutan

Abstract

This article examines and solves an interesting paradox in the literature that the tests for purchasing power parity (PPP) based on the yen real exchange rates (RERs) refute the PPP hypothesis more often than those with other major currency-based RERs, and the evidence is sensitive to the sample period used. Using a new empirical methodology accounting for both nonlinearity and multiple smooth temporary breaks in the data, we show that the puzzling finding is due to the failure to take into account the long but temporary large rise and fall in the yen RERs. The results illustrate that the yen RERs in the post-Bretton Woods period are likely mean reverting with linear or nonlinear adjustment toward large, long swing type of infrequent smooth temporary changes around constant equilibrium values, supporting the validity of PPP and resolving the paradox.

Suggested Citation

  • Su Zhou & Ali M. Kutan, 2014. "Smooth structural breaks and the stationarity of the yen real exchange rates," Applied Economics, Taylor & Francis Journals, vol. 46(10), pages 1150-1159, April.
    • Handle: RePEc:taf:applec:v:46:y:2014:i:10:p:1150-1159
    DOI: 10.1080/00036846.2013.868587
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    Cited by:

    1. Emmanuel Numapau Gyamfi & Adam Anokye Mohammed, 2017. "Validity of Purchasing Power Parity in BRICS under a DFA Approach," Acta Universitatis Danubius. OEconomica, Danubius University of Galati, issue 13(1), pages 17-28, February.
    2. Hyein Shim & Hyeyoen Kim & Sunghyun Kim & Doojin Ryu, 2016. "Testing the relative purchasing power parity hypothesis: the case of Korea," Applied Economics, Taylor & Francis Journals, vol. 48(25), pages 2383-2395, May.
    3. Zixiong Xie & Shyh-Wei Chen & An-Chi Wu, 2023. "Real interest rate parity in the Pacific Rim countries: new empirical evidence," Empirical Economics, Springer, vol. 64(3), pages 1471-1515, March.
    4. Tristan D. Skolrud, 2017. "Reducing Approximation Error in the Fourier Flexible Functional Form," Econometrics, MDPI, vol. 5(4), pages 1-16, December.
    5. Meng, Xiangcai & Huang, Chia-Hsing, 2016. "Nonlinear models for the sources of real effective exchange rate fluctuations: Evidence from the Republic of Korea," Japan and the World Economy, Elsevier, vol. 40(C), pages 21-30.
    6. Xie, Zixiong & Chen, Shyh-Wei & Hsieh, Chun-Kuei, 2021. "Facing up to the polysemy of purchasing power parity: New international evidence," Economic Modelling, Elsevier, vol. 98(C), pages 247-265.

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