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

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  • Jeffrey A. Frankel and Andrew K. Rose.

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. However, the long samples required for statistical significance are unavailable for most currencies, and are potentially inappropriate because of regime changes. In this study, we re-examine deviations from PPP using a panel of 150 countries and 45 annual post WWII 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 percent annually, i.e.,

Suggested Citation

  • Jeffrey A. Frankel and Andrew K. Rose., 1995. "A Panel Project on Purchasing Power Parity: Mean Reversion Within and Between Countries," Center for International and Development Economics Research (CIDER) Working Papers C95-052, University of California at Berkeley.
    • Handle: RePEc:ucb:calbcd:c95-052
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    JEL classification:

    • F30 - International Economics - - International Finance - - - General

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