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TAR models and real exchange rates

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  • Johansson, Martin

    (Department of Economics, Lund University)

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    Abstract

    The recent past has seen an increased interest in piecewise linear real exchange rate models. By invoking Heckscher's (1916) 'commodity points' it has been argued that a threshold autoregressive (TAR) model should be used to study movements in the real exchange rate. This paper examines the problems of fitting TAR models to real exchange rates. We find that the power of the tests for TAR behavior can be very low for realistic parameter settings. Moreover the confidence intervalls for the threshold parameter are too wide to be used for economic analysis.

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    File URL: http://project.nek.lu.se/publications/workpap/Papers/WP01_21.pdf
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    Bibliographic Info

    Paper provided by Lund University, Department of Economics in its series Working Papers with number 2001:21.

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    Length: 16 pages
    Date of creation: 14 Nov 2001
    Date of revision:
    Handle: RePEc:hhs:lunewp:2001_021

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    Postal: Department of Economics, School of Economics and Management, Lund University, Box 7082, S-220 07 Lund,Sweden
    Phone: +46 +46 222 0000
    Fax: +46 +46 2224613
    Web page: http://www.nek.lu.se/en
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    Keywords: PPP; real exchange rate; threshold autoregression;

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    References

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    1. Michael Pippenger & Gregory Goering, 1998. "Exchange Rate Forecasting: Results from a Threshold Autoregressive Model," Open Economies Review, Springer, vol. 9(2), pages 157-170, April.
    2. D. A. Peel & A. E. H. Speight, 1998. "The nonlinear time series properties of unemployment rates: some further evidence," Applied Economics, Taylor & Francis Journals, vol. 30(2), pages 287-294, February.
    3. 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.
    4. Chen, Show-Lin & Wu, Jyh-Lin, 2000. "A Re-Examination of Purchasing Power Parity in Japan and Taiwan," Journal of Macroeconomics, Elsevier, vol. 22(2), pages 271-284, April.
    5. Kenneth Rogoff, 1996. "The Purchasing Power Parity Puzzle," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 647-668, June.
    6. Michael, Panos & Nobay, A Robert & Peel, David A, 1997. "Transactions Costs and Nonlinear Adjustment in Real Exchange Rates: An Empirical Investigation," Journal of Political Economy, University of Chicago Press, vol. 105(4), pages 862-79, August.
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    Cited by:
    1. Angelos Kanas, 2009. "Real exchange rate, stationarity, and economic fundamentals," Journal of Economics and Finance, Springer, vol. 33(4), pages 393-409, October.
    2. Levy Yeyati, Eduardo & Schmukler, Sergio L. & Van Horen, Neeltje, 2009. "International financial integration through the law of one price: The role of liquidity and capital controls," Journal of Financial Intermediation, Elsevier, vol. 18(3), pages 432-463, July.

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