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Asset allocation in the Athens Stock Exchange: A variance sensitivity analysis

Author

Listed:
  • Panayiotis Diamandis

    (Department of Business Administration, Athens University of Economics and Business)

  • Georgios Kouretas

    () (Department of Economics, University of Crete)

  • Leonidas Zarangas

    (Department of Finance and Auditing, Technological Educational Institute of Epirus)

Abstract

This paper provides an analysis of asset allocation using univariate portfolio GARCH models from the Athens Stock Exchange. We use daily data for the period January 1997 to February 2005. Our analysis adopts the methodology due to Manganelli (2004) and we are able to recover from the univariate approach the multivariate dimension of the portfolio allocation problem. Manganelli (2004) suggests that such a dual problem can be solved with the application of a variance sensitivity analysis which considers the change in the portfolio variance induced by an infinitesimal change in the portfolio allocation. Our main findings are based on the estimation of the variance sensitivity for a portfolio of two assets and the way sensitivity has been changing over time and this has implications for risk management. In addition we compute the second derivative of the estimated variance with respect to portfolio weights and this gives an indication of the benefits arising from diversification at any given point of time.

Suggested Citation

  • Panayiotis Diamandis & Georgios Kouretas & Leonidas Zarangas, 2006. "Asset allocation in the Athens Stock Exchange: A variance sensitivity analysis," Working Papers 0602, University of Crete, Department of Economics.
  • Handle: RePEc:crt:wpaper:0602
    as

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    File URL: http://economics.soc.uoc.gr/wpa/docs/AseAlloc.pdf
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    References listed on IDEAS

    as
    1. Bollerslev, Tim & Engle, Robert F & Wooldridge, Jeffrey M, 1988. "A Capital Asset Pricing Model with Time-Varying Covariances," Journal of Political Economy, University of Chicago Press, vol. 96(1), pages 116-131, February.
    2. Robert F. Engle & Kevin Sheppard, 2001. "Theoretical and Empirical properties of Dynamic Conditional Correlation Multivariate GARCH," NBER Working Papers 8554, National Bureau of Economic Research, Inc.
    3. Gourieroux, C. & Laurent, J. P. & Scaillet, O., 2000. "Sensitivity analysis of Values at Risk," Journal of Empirical Finance, Elsevier, vol. 7(3-4), pages 225-245, November.
    4. Engle, Robert F. & Kroner, Kenneth F., 1995. "Multivariate Simultaneous Generalized ARCH," Econometric Theory, Cambridge University Press, vol. 11(01), pages 122-150, February.
    5. Carol Alexander, 2000. "Orthogonal Methods for Generating Large Positive Semi-Definite Covariance Matrices," ICMA Centre Discussion Papers in Finance icma-dp2000-06, Henley Business School, Reading University.
    6. Simone Manganelli, 2004. "Asset Allocation by Variance Sensitivity Analysis," Journal of Financial Econometrics, Society for Financial Econometrics, vol. 2(3), pages 370-389.
    7. Nijman, Theo & Sentana, Enrique, 1996. "Marginalization and contemporaneous aggregation in multivariate GARCH processes," Journal of Econometrics, Elsevier, vol. 71(1-2), pages 71-87.
    8. Bollerslev, Tim, 1990. "Modelling the Coherence in Short-run Nominal Exchange Rates: A Multivariate Generalized ARCH Model," The Review of Economics and Statistics, MIT Press, vol. 72(3), pages 498-505, August.
    9. Tim Bollerslev & Jeffrey M. Wooldridge, 1988. "Quasi-Maximum Likelihood Estimation of Dynamic Models with Time-Varying Covariances," Working papers 505, Massachusetts Institute of Technology (MIT), Department of Economics.
    10. M.J.B. Hall, 1996. "The amendment to the capital accord to incorporate market risk," BNL Quarterly Review, Banca Nazionale del Lavoro, vol. 49(197), pages 271-277.
    11. Olivier Ledoit & Pedro Santa-Clara & Michael Wolf, 2003. "Flexible Multivariate GARCH Modeling with an Application to International Stock Markets," The Review of Economics and Statistics, MIT Press, vol. 85(3), pages 735-747, August.
    12. Manganelli, Simone & Ceci, Vladimiro & Vecchiato, Walter, 2002. "Sensitivity analysis of volatility: a new tool for risk management," Working Paper Series 0194, European Central Bank.
    13. Eschenbach, Felix & Schuknecht, Ludger, 2002. "The fiscal costs of financial instability revisited," Working Paper Series 0191, European Central Bank.
    14. repec:cup:etheor:v:11:y:1995:i:1:p:122-50 is not listed on IDEAS
    15. Engle, Robert, 2002. "Dynamic Conditional Correlation: A Simple Class of Multivariate Generalized Autoregressive Conditional Heteroskedasticity Models," Journal of Business & Economic Statistics, American Statistical Association, vol. 20(3), pages 339-350, July.
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    Cited by:

    1. Vortelinos, Dimitrios I., 2015. "The Greek equity market in European equity portfolios," Economic Modelling, Elsevier, vol. 49(C), pages 144-153.

    More about this item

    Keywords

    asset allocation; GARCH models; risk management; sensitivity analysis;

    JEL classification:

    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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