IDEAS home Printed from https://ideas.repec.org/p/bok/wpaper/1205.html

The Yen Real Exchange Rate May Not be Stationary After All: New Evidence from Non-linear Unit-Root Tests

Author

Listed:
  • Hyeongwoo Kim

    (Department of Economics, Auburn University, Auburn)

  • Young-Kyu Moh

    (Department of Economics, Sookmyung Women's University)

Abstract

Researchers have encountered difficulties in finding empirical evidence of Purchasing Power Parity (PPP) especially when conventional linear unit root tests are employed for the Japanese yen real exchange rate. Chortareas and Kapetanios (2004), however, report strong evidence in favor of a Balassa-Samuelson type model of PPP by applying a nonlinear unit root test by Kapetanios et al. (2003) for the other G7 and Asian currencies relative to the Japanese yen, claiming that the yen real exchange rate may be (trend) stationary. We question the validity of this remark. First, we note that their claim is upset when we extend the data until 2008 even when the same nonlinear unit root test is used. Second, we apply the inf- ? test by Park and Shintani (2005, 2010) which does not require the Taylor approximation, and find strong evidence against nonstationarity for most yen real exchange rates. Our results also corroborate the findings of Kim and Moh (2010) who report a possibility of misspecification problems with the use of Taylor-approximation based tests.

Suggested Citation

  • Hyeongwoo Kim & Young-Kyu Moh, 2012. "The Yen Real Exchange Rate May Not be Stationary After All: New Evidence from Non-linear Unit-Root Tests," Working Papers 2012-5, Economic Research Institute, Bank of Korea.
    • Handle: RePEc:bok:wpaper:1205
    as

    Download full text from publisher

    File URL: http://imer.bok.or.kr/attach/imer_kor/1229/2012/05/1338427716201.pdf
    File Function: Working Paper, 2012
    Download Restriction: no
    ---><---

    Other versions of this item:

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • F31 - International Economics - - International Finance - - - Foreign Exchange

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:bok:wpaper:1205. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Economic Research Institute (email available below). General contact details of provider: https://edirc.repec.org/data/imbokkr.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.