A multivariate FGD technique to improve VaR computation in equity markets
AbstractIt is difficult to compute Value-at-Risk (VaR) using multivariate models able to take into account the dependence structure between large numbers of assets and being still computationally feasible. A possible procedure is based on functional gradient descent (FGD) estimation for the volatility matrix in connection with asset historical simulation. Backtest analysis on simulated and real data provides strong empirical evidence of the better predictive ability of the proposed procedure over classical filtered historical simulation, with a resulting significant improvement in the measurement of risk. Copyright Springer-Verlag Berlin/Heidelberg 2005
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Bibliographic InfoArticle provided by Springer in its journal Computational Management Science.
Volume (Year): 2 (2005)
Issue (Month): 2 (03)
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Web page: http://www.springerlink.com/link.asp?id=111894
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- Fabio Trojani, 2007.
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- Fabio Trojani & Francesco Audrino, 2005. "Accurate Yield Curve Scenarios Generation using Functional Gradient Descent," Computing in Economics and Finance 2005 14, Society for Computational Economics.
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