Empirical analysis of jump dynamics, heavy-tails and skewness on value-at-risk estimation

文化大學機構典藏 CCUR > 商學院 > 財務金融學系 > 期刊論文 > Item 987654321/24045

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题名:	Empirical analysis of jump dynamics, heavy-tails and skewness on value-at-risk estimation
作者:	Su, JB (Su, Jung-Bin) Hung, JC (Hung, Jui-Cheng)
贡献者:	Dept Banking & Finance
关键词:	Value-at-risk ARJI models Jump effect Skewness effect Heavy-tail effect GENERALIZED-T DISTRIBUTION VOLATILITY MODELS GARCH MODELS MARKET RETURNS
日期:	2011-05
上传时间:	2013-01-18 13:55:13 (UTC+8)
摘要:	This study provides a comprehensive analysis of the possible influences of jump dynamics, heavy-tails, and skewness with regard to VaR estimates through the assessment of both accuracy and efficiency. To this end, the ARJI model, and its degenerative GARCH model with normal, GED, and skewed normal (SN) distributions were adopted to capture the properties of time-varying volatility, time-varying jump intensity, heavy-tails and skewness, for a range of stock indices across international stock markets during the period of the U.S. subprime mortgage crisis. Empirical results show that, with regard to the evaluation of accuracy, the role of jump dynamics is more substantial than heavy-tails or skewness as it pertains to VaR accuracy at the 90% and 95% levels, while heavy-tails become more important at the 99% level for a long position. However, the influence of the abovementioned properties on VaR estimation does not appear substantial for a short position. In addition, the properties of jump dynamics and skewness appear to be beneficial for the improvement of efficiency. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
關聯:	ECONOMIC MODELLING Volume: 28 Issue: 3 Pages: 1117-1130
显示于类别:	[財務金融學系 ] 期刊論文

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