An Unbiased Appraisal of Purchasing Power Parity /

Univariate studies of the hypothesis of unit roots in real exchange rates have yielded consensus point estimates of the half-life of deviations from purchasing power parity of between three to five years. However, least squares-based estimates of half-lives are biased downward. Accordingly, we follo...

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Λεπτομέρειες βιβλιογραφικής εγγραφής
Κύριος συγγραφέας: McDermott, C.
Άλλοι συγγραφείς: Cashin, Paul
Μορφή: Επιστημονικό περιοδικό
Γλώσσα:English
Έκδοση: Washington, D.C. : International Monetary Fund, 2001.
Σειρά:IMF Working Papers; Working Paper ; No. 2001/196
Διαθέσιμο Online:Full text available on IMF
Περιγραφή
Περίληψη:Univariate studies of the hypothesis of unit roots in real exchange rates have yielded consensus point estimates of the half-life of deviations from purchasing power parity of between three to five years. However, least squares-based estimates of half-lives are biased downward. Accordingly, we follow Andrews (1993) and use median-unbiased estimators of the half-life of deviations from parity as a preferred measure of the persistence of real exchange rate shocks. We study this issue using real effective exchange rate (REER) data for 22 industrial countries in the post-Bretton Woods period. Three methods of bias correction are implemented, which yield cross-country averages of half-lives of deviations from parity ranging between 4 to 15 years, with the REER of several countries displaying permanent deviations from parity.
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Φυσική περιγραφή:1 online resource (35 pages)
Μορφή:Mode of access: Internet
ISSN:1018-5941
Πρόσβαση:Electronic access restricted to authorized BRAC University faculty, staff and students