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Parity reversion persistence in real exchange rates: middle income country case

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  • L. Achy

Abstract

This article investigates purchasing power parity (PPP) in the specific context of middle income countries. To circumvent the low power of traditional stationarity tests (Augmented Dickey-Fuller and Phillips-Perron tests), it performs variance ratio and fractional integration tests in addition to Perron's test that accounts for potential structural changes in real exchange rate processes. Beyond estimating half-life shocks to PPP, this article attempts to explain these estimates using a set of country specific variables as suggested by economic theory. The evidence suggests that reversion to parity tends to be faster in high inflation countries and that productivity improvement leads to a higher level of persistence. Openness to trade tends to reduce the extent of deviations from parity but this result does not appear to be statistically robust. Evidence shows also that deviations are less persistent under a fixed exchange rate regime and under unrestricted capital mobility.

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Bibliographic Info

Article provided by Taylor and Francis Journals in its journal Applied Economics.

Volume (Year): 35 (2003)
Issue (Month): 5 ()
Pages: 541-553

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Handle: RePEc:taf:applec:v:35:y:2003:i:5:p:541-553

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Cited by:
  1. Guneratne Banda Wickremasinghe, 2004. "Purchasing Power Parity Hypothesis in Developing Economies:Some Empirical Evidence from Sri Lanka," International Finance 0406005, EconWPA.
  2. Paresh Kumar Narayan, 2006. "Are bilateral real exchange rates stationary? Evidence from Lagrange multiplier unit root tests for India," Applied Economics, Taylor and Francis Journals, vol. 38(1), pages 63-70.
  3. Baharumshah, Ahmad Zubaidi & Chan, Tze-Haw & Aggarwal, Raj, 2006. "The Changing Dynamics of the East Asian Real Exchange Rates after the Financial Crisis: Further Evidence on Mean Reversion," MPRA Paper 6090, University Library of Munich, Germany, revised 22 Nov 2007.
  4. Guneratne B. Wickremasinghe, 2005. "Purchasing Power Parity of Papua New Guinea: evidence from the floating exchange rate regime," Applied Financial Economics Letters, Taylor and Francis Journals, vol. 1(6), pages 335-338, November.
  5. Salah A. Nusair, 2003. "Testing The Validity Of Purchasing Power Parity For Asian Countries During The Current Float," Journal of Economic Development, Chung-Ang Unviersity, Department of Economics, vol. 28(2), pages 129-147, December.
  6. Marcos José Dal Bianco, 2008. "Argentinean real exchange rate 1900-2006, test purchasing power parity theory," Estudios de Economia, University of Chile, Department of Economics, vol. 35(1 Year 20), pages 33-64, June.
  7. Tastan Huseyin, 2005. "Do real exchange rates contain a unit root? Evidence from Turkish data," Applied Economics, Taylor and Francis Journals, vol. 37(17), pages 2037-2053.

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