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Improving Density Forecasts and Value-at-Risk Estimates by Combining Densities

Author

Listed:
  • Anne Opschoor

    (VU University Amsterdam)

  • Dick van Dijk

    (Erasmus University Rotterdam)

  • Michel van der Wel

    (Erasmus University Rotterdam)

Abstract
We investigate the added value of combining density forecasts for asset return prediction in a specific region of support. We develop a new technique that takes into account model uncertainty by assigning weights to individual predictive densities using a scoring rule based on the censored likelihood. We apply this approach in the context of recently developed univariate volatility models (including HEAVY and Realized GARCH models), using daily returns from the S&P 500, DJIA, FTSE and Nikkei stock market indexes from 2000 until 2013. The results show that combined density forecasts based on the censored likelihood scoring rule significantly outperform pooling based on the log scoring rule and individual density forecasts. The same result, albeit less strong, holds when compared to combined density forecasts based on equal weights. In addition, VaR estimates improve a t the short horizon, in particular when compared to estimates based on equal weights or to the VaR estimates of the individual models.

Suggested Citation

  • Anne Opschoor & Dick van Dijk & Michel van der Wel, 2014. "Improving Density Forecasts and Value-at-Risk Estimates by Combining Densities," Tinbergen Institute Discussion Papers 14-090/III, Tinbergen Institute.
    • Handle: RePEc:tin:wpaper:20140090
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    File URL: https://papers.tinbergen.nl/14090.pdf
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    References listed on IDEAS

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    More about this item

    Keywords

    Density forecast evaluation; Volatility modeling; Censored likelihood; Value-at-Risk;
    All these keywords.

    JEL classification:

    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • G17 - Financial Economics - - General Financial Markets - - - Financial Forecasting and Simulation

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