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Erscheinungsjahr: 
2017
Quellenangabe: 
[Journal:] Contemporary Economics [ISSN:] 2300-8814 [Volume:] 11 [Issue:] 1 [Publisher:] University of Finance and Management in Warsaw, Faculty of Management and Finance [Place:] Warsaw [Year:] 2017 [Pages:] 91-106
Verlag: 
University of Finance and Management in Warsaw, Faculty of Management and Finance, Warsaw
Zusammenfassung: 
Returns in financial assets display consistent excess kurtosis and skewness, implying the presence of large fluctuations not forecasted by Gaussian models. This paper applies a resampling method based on the bootstrap and a bias-correction step to improve Value-at-Risk (VaR) forecasting ability of the n-EGARCH (normal EGARCH) model and correct the VaR for both long and short positions. Our aim is to utilize the advantages of this model, but still use the bootstrap resampling method to accurate for the tendency of the model tomiscalculate the VaR. Empirical results indicate that the bias-correction method can improve the n-GARCH and n-EGARCH VaR forecasts so much that the acquired VaR predictions are different from the proposed probability. Additionally, allowing asymmetry in the conditional variance using the EGARCH model with normal distribution instead of GARCH improves the performance of the bias-correction method in forecasting the VaR for almost all considered indices. Moreover, the bias-corrected n-EGARCH model performs better than the simple t-EGARCH model. Thus, it seems that this model can take account of both the asymmetry in the conditional variance and leptokurtosis in returns distribution. However, we find that the superiority of the bias-corrected n-EGARCH model over the t-EGARCH model is not completely confirmed for short positions based on the censored likelihood scoring rule.
Schlagwörter: 
Bootstrap
EGARCH
GARCH
Value-at-Risk
JEL: 
C58
G32
C15
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