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The instability of the correlation structure of the S&P 500

Author

Listed:
  • Lyócsa, Štefan
  • Výrost, Tomáš
  • Baumöhl, Eduard

Abstract

Using weekly returns of S&P 500 constituents, we study the time-varying correlation structure during the period of 2006 to mid-2011. Contrary to most of the previous correlation studies of many assets, we do not use rolling correlations but the DCC MV-GARCH model with the MacGyver strategy proposed by Engle (2009). We find empirical evidence that the correlation structure tends to change significantly during the periods of high volatility and market downturns.

Suggested Citation

  • Lyócsa, Štefan & Výrost, Tomáš & Baumöhl, Eduard, 2011. "The instability of the correlation structure of the S&P 500," MPRA Paper 34160, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:34160
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    References listed on IDEAS

    as
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    4. Engle, Robert F & Sheppard, Kevin K, 2001. "Theoretical and Empirical Properties of Dynamic Conditional Correlation Multivariate GARCH," University of California at San Diego, Economics Working Paper Series qt5s2218dp, Department of Economics, UC San Diego.
    5. Tse, Chi K. & Liu, Jing & Lau, Francis C.M., 2010. "A network perspective of the stock market," Journal of Empirical Finance, Elsevier, vol. 17(4), pages 659-667, September.
    6. Cook, Steven & Manning, Neil, 2004. "Lag optimisation and finite-sample size distortion of unit root tests," Economics Letters, Elsevier, vol. 84(2), pages 267-274, August.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    correlation structure; dynamic conditional correlations; range-based volatility; conditional volatility; MacGyver strategy;
    All these keywords.

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • G1 - Financial Economics - - General Financial Markets

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