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Are the Nordic Stock Markets Mean Reverting?

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  • Graflund, Andreas

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    (Department of Economics, Lund University)

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    Abstract

    In this paper we test for mean reversion in the Nordic stock markets using monthly nominal data 1947-1998. By simply account for the heteroscedasticity of the data with a regime-switching model of normal distributions and taking estimation bias into account via a Bayesian approach we can find no support of mean reversion. This is a contradiction to some previous result from Denmark and Sweden. Our findings suggest that mixtures of two regimes can characterize the each stock market and within the regimes the stock market is random. This finding of randomness is in line with recent evidence in literature.

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    File URL: http://swopec.hhs.se/lunewp/papers/lunewp2001_015.pdf
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    Bibliographic Info

    Paper provided by Lund University, Department of Economics in its series Working Papers with number 2001:15.

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    Length: 26 pages
    Date of creation: 30 Aug 2001
    Date of revision:
    Handle: RePEc:hhs:lunewp:2001_015

    Contact details of provider:
    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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    Related research

    Keywords: market efficiency; variance ratio; Gibbs sampling; hidden Markov chains; MCMC;

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    1. Hamilton, James D, 1989. "A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle," Econometrica, Econometric Society, vol. 57(2), pages 357-84, March.
    2. Kim, Myung Jig & Nelson, Charles R & Startz, Richard, 1991. "Mean Reversion in Stock Prices? A Reappraisal of the Empirical Evidence," Review of Economic Studies, Wiley Blackwell, vol. 58(3), pages 515-28, May.
    3. Michael Dueker, 1998. "Conditional heteroskedasticity in qualitative response models of time series: a Gibbs sampling approach to the bank prime rate," Working Papers 1998-011, Federal Reserve Bank of St. Louis.
    4. Graflund, Andreas, 2000. "A Bayesian Inference Approach to Testing Mean Reversion in the Swedish Stock Market," Working Papers 2000:8, Lund University, Department of Economics, revised 09 Nov 2000.
    5. Malliaropulos, Dimitrios & Priestley, Richard, 1999. "Mean reversion in Southeast Asian stock markets," Journal of Empirical Finance, Elsevier, vol. 6(4), pages 355-384, October.
    6. Kim, Chang-Jin & Nelson, Charles R. & Startz, Richard, 1998. "Testing for mean reversion in heteroskedastic data based on Gibbs-sampling-augmented randomization1," Journal of Empirical Finance, Elsevier, vol. 5(2), pages 131-154, June.
    7. 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.
    8. Luginbuhl, Rob & de Vos, Aart, 1999. "Bayesian Analysis of an Unobserved-Component Time Series Model of GDP with Markov-Switching and Time-Varying Growths," Journal of Business & Economic Statistics, American Statistical Association, vol. 17(4), pages 456-65, October.
    9. Andreas Graflund, 2000. "A Bayes Inference Approach to Testing Mean Reversion in the Swedish Stock Market," Econometric Society World Congress 2000 Contributed Papers 1363, Econometric Society.
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