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Bayesian unit root test for model with maintained trend

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  • Chaturvedi, Anoop
  • Kumar, Jitendra

Abstract

The present paper considers the testing of unit root hypothesis for an autoregressive model with polynomial trend under Bayesian framework. Under the unit root hypothesis the trend component does not vanish completely and its degree reduces by one. The posterior odds ratio for the unit root hypothesis has been derived under appropriate prior assumptions for the parameters of the model.

Suggested Citation

  • Chaturvedi, Anoop & Kumar, Jitendra, 2005. "Bayesian unit root test for model with maintained trend," Statistics & Probability Letters, Elsevier, vol. 74(2), pages 109-115, September.
    • Handle: RePEc:eee:stapro:v:74:y:2005:i:2:p:109-115
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    References listed on IDEAS

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    1. Uhlig, Harald, 1994. "What Macroeconomists Should Know about Unit Roots: A Bayesian Perspective," Econometric Theory, Cambridge University Press, vol. 10(3-4), pages 645-671, August.
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    6. Schotman, Peter & van Dijk, Herman K., 1991. "A Bayesian analysis of the unit root in real exchange rates," Journal of Econometrics, Elsevier, vol. 49(1-2), pages 195-238.
    7. DeJong, David N. & Whiteman, Charles H., 1991. "Reconsidering 'trends and random walks in macroeconomic time series'," Journal of Monetary Economics, Elsevier, vol. 28(2), pages 221-254, October.
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    Cited by:

    1. Magris Martin & Iosifidis Alexandros, 2021. "Approximate Bayes factors for unit root testing," Papers 2102.10048, arXiv.org, revised Feb 2021.

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