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Nonlinear Adjustment in Real Exchange Rates and Long Run Purchasing Power Parity--Further Evidence

  • Darbha, Gangadhar

    (U of Pennsylvania)

  • Patel, Urjit R.

    (Infrastructure Development Finance Corporation)

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    The paper investigates, using a threshold autoregression model, the nature of nonlinear adjustments in real exchange rates (RERs) arising from the presence of transaction costs and uncertainty, and their implications for the testing of unit roots. Using monthly data for the U.S. vis-a-vis 19 trading partners we find that most RERs are better characterized by a mean reverting nonlinear stochastic process, with large changes converging faster than small changes, implying that there is convergence towards PPP equilibrium at least in the long-run, albeit in a non-linear manner. It is found that, across countries and commodity groups, there is an association between geographical and trade related proximity and the estimated speeds of adjustment. In addition, policy agreements that mitigate exchange rate uncertainty such as the Louvre Accord could have contributed to greater international commodity arbitrage.

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    File URL: http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=A39DA2B89221205F9019BEFC7DCB5A4E?doi=10.1.1.202.5803&rep=rep1&type=pdf
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    Paper provided by University of Pennsylvania, Wharton School, Weiss Center in its series Working Papers with number 04-1.

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    Date of creation: Mar 2004
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    Handle: RePEc:ecl:upafin:04-1
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    7. Cheung, Yin-Wong & Chinn, Menzie & Fujii, Eiji, 2001. "Market Structure and the Persistence of Sectoral Real Exchange Rates," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 6(2), pages 95-114, April.
    8. Taylor, Alan M. & Taylor, Mark P, 2004. "The Purchasing Power Parity Debate," CEPR Discussion Papers 4495, C.E.P.R. Discussion Papers.
    9. Froot, Kenneth A. & Rogoff, Kenneth, 1995. "Perspectives on PPP and long-run real exchange rates," Handbook of International Economics, in: G. M. Grossman & K. Rogoff (ed.), Handbook of International Economics, edition 1, volume 3, chapter 32, pages 1647-1688 Elsevier.
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    16. Meese, Richard A & Rogoff, Kenneth, 1988. " Was It Real? The Exchange Rate-Interest Differential Relation over the Modern Floating-Rate Period," Journal of Finance, American Finance Association, vol. 43(4), pages 933-48, September.
    17. 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.
    18. Jose A. Lopez, 1996. "Exchange rate cointegration across central bank regime shifts," Research Paper 9602, Federal Reserve Bank of New York.
    19. Delgado, Francisco A., 1991. "Hysteresis, menu costs, and pricing with random exchange rates," Journal of Monetary Economics, Elsevier, vol. 28(3), pages 461-484, December.
    20. Corbae, Dean & Ouliaris, Sam, 1988. "Cointegration and Tests of Purchasing Power Parity," The Review of Economics and Statistics, MIT Press, vol. 70(3), pages 508-11, August.
    21. Papell, David H., 1997. "Searching for stationarity: Purchasing power parity under the current float," Journal of International Economics, Elsevier, vol. 43(3-4), pages 313-332, November.
    22. Sercu, Piet & Uppal, Raman & Van Hulle, Cynthia, 1995. " The Exchange Rate in the Presence of Transaction Costs: Implications for Tests of Purchasing Power Parity," Journal of Finance, American Finance Association, vol. 50(4), pages 1309-19, September.
    23. Uppal, Raman, 1993. " A General Equilibrium Model of International Portfolio Choice," Journal of Finance, American Finance Association, vol. 48(2), pages 529-53, June.
    24. Pippenger, Michael K & Goering, Gregory E, 1993. "A Note on the Empirical Power of Unit Root Tests under Threshold Processes," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 55(4), pages 473-81, November.
    25. Papell, David H. & Theodoridis, Hristos, 1998. "Increasing evidence of purchasing power parity over the current float," Journal of International Money and Finance, Elsevier, vol. 17(1), pages 41-50, February.
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