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A Panel Project on Purchasing Power Parity: Mean Reversion Within and Between Countries

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Author Info
Frankel, Jeffrey A
Rose, Andrew K

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Abstract

Previous time-series studies have shown evidence of mean-reversion in real exchange rates. Deviations from purchasing power parity (PPP) appear to have half-lives of approximately four years. The long samples required for statistical significance are unavailable for most currencies, however, and may be inappropriate because of regime changes. In this study, we re-examine deviations from PPP using a panel of 150 countries and 45 annual observations. Our panel shows strong evidence of mean-reversion that is similar to that from long time-series. PPP deviations are eroded at a rate of approximately 15% annually, i.e. their half-life is around four years. Such findings can be masked in time-series data, but are relatively easy to find in cross-sections.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 1128.

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Date of creation: Feb 1995
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Handle: RePEc:cpr:ceprdp:1128

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Related research
Keywords: Cross-Section; Exchange Rate; Inflation; Long-Run; Real; Time-Series; Variation;

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Find related papers by JEL classification:
F30 - International Economics - - International Finance - - - General

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

  1. Shang-Jin Wei & David C. Parsley, 1995. "Purchasing Power Disparity During the Floating Rate Period: Exchange Rate Volatility, Trade Barriers and Other Culprits," NBER Working Papers 5032, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  2. Danny Quah, 1993. "Exploiting Cross Section Variation for Unit Root Inference in Dynamic Data," FMG Discussion Papers dp171, Financial Markets Group. [Downloadable!] (restricted)
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  3. Edison, Hali J. & Gagnon, Joseph E. & Melick, William R., 1997. "Understanding the empirical literature on purchasing power parity: the post-Bretton Woods era," Journal of International Money and Finance, Elsevier, vol. 16(1), pages 1-17, February. [Downloadable!] (restricted)
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  4. Kenneth A. Froot & Kenneth Rogoff, 1996. "Perspectives on PPP and Long-Run Real Exchange Rates," NBER Working Papers 4952, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  5. Abuaf, Niso & Jorion, Philippe, 1990. " Purchasing Power Parity in the Long Run," Journal of Finance, American Finance Association, vol. 45(1), pages 157-74, March. [Downloadable!] (restricted)
  6. Mishkin, Frederic S, 1984. " Are Real Interest Rates Equal across Countries? An Empirical Investigation of International Parity Conditions," Journal of Finance, American Finance Association, vol. 39(5), pages 1345-57, December. [Downloadable!] (restricted)
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  7. Adler, Michael & Lehmann, Bruce, 1983. " Deviations from Purchasing Power Parity in the Long Run," Journal of Finance, American Finance Association, vol. 38(5), pages 1471-87, December. [Downloadable!] (restricted)
  8. Lothian, James R., 1997. "Multi-country evidence on the behavior of purchasing power parity under the current float," Journal of International Money and Finance, Elsevier, vol. 16(1), pages 19-35, February. [Downloadable!] (restricted)
  9. Kim, Yoonbai, 1990. "Purchasing Power Parity in the Long Run: A Cointegration Approach," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 22(4), pages 491-503, November. [Downloadable!] (restricted)
  10. Lothian, James R. & Taylor, Mark P., 1997. "Real exchange rate behavior," Journal of International Money and Finance, Elsevier, vol. 16(6), pages 945-954, December. [Downloadable!] (restricted)
  11. Krugman, Paul R., 1978. "Purchasing power parity and exchange rates : Another look at the evidence," Journal of International Economics, Elsevier, vol. 8(3), pages 397-407, August. [Downloadable!] (restricted)
  12. Michael R. Darby, 1981. "Does purchasing power parity work?," Proceedings, Federal Reserve Bank of San Francisco, pages 136-173.
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