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A Bayesian Analysis Of The Unit Root In Real Exchange Rates

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  • Schotman P.
  • van Dijk, H. K.

Abstract

We propose a posterior odds analysis of the hypothesis of a unit root in real exchange rates. From a Bayesian viewpoint the random walk hypothesis for real exchange rates is a posteriori as probable as a stationary AR(1) process for four out of eight time series investigated. The French franc / German Dmark is clearly stationary, while the Japanese yen / US dollar is most likely a random walk.' In contrast, classical tests are unable to reject the unit root for any of these series.

Suggested Citation

  • Schotman P. & van Dijk, H. K., 1989. "A Bayesian Analysis Of The Unit Root In Real Exchange Rates," Econometric Institute Archives 272390, Erasmus University Rotterdam.
    • Handle: RePEc:ags:eureia:272390
    DOI: 10.22004/ag.econ.272390
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    References listed on IDEAS

    as
    1. Sims, Christopher A., 1988. "Bayesian skepticism on unit root econometrics," Journal of Economic Dynamics and Control, Elsevier, vol. 12(2-3), pages 463-474.
    2. Huizinga, John, 1987. "An empirical investigation of the long-run behavior of real exchange rates," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 27(1), pages 149-214, January.
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    7. Phillips, P C B, 1987. "Time Series Regression with a Unit Root," Econometrica, Econometric Society, vol. 55(2), pages 277-301, March.
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    9. Perron, Pierre, 1988. "Trends and random walks in macroeconomic time series : Further evidence from a new approach," Journal of Economic Dynamics and Control, Elsevier, vol. 12(2-3), pages 297-332.
    10. Cochrane, John H, 1988. "How Big Is the Random Walk in GNP?," Journal of Political Economy, University of Chicago Press, vol. 96(5), pages 893-920, October.
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