Publications-Periodical Articles

Article View/Open

Publication Export

Google ScholarTM

NCCU Library

Citation Infomation

Related Publications in TAIR

題名 Analytical VaR and Expected Shortfall for Quadratic Portfolios
作者 Yueh, Meng-Lan;Wong, Mark C. W.
岳夢蘭;Wong, Mark C. W.
貢獻者 財管系
日期 2010-03
上傳時間 8-Jan-2015 18:05:57 (UTC+8)
摘要 Expected shortfall is a coherent risk measure proposed to remedy the weakness of the widely used Value-at-Risk (VaR). However, calculation of expected shortfall is time consuming due to the lack of closed-form formulae. In this article, we employ the Fourier transform techniques to derive analytic expressions for VaR and expected shortfall for quadratic portfolios exposed to multivariate normally distributed risk factors. Our numerical results show that the proposed analytical expressions for the two risk measures are accurate and much faster than alternative Monte Carlo simulations. We thus argue that expected shortfall should be used in conjunction with VaR to provide useful information for aggregating and assessing portfolio risks. From this perspective, the derived analytic expressions provide an efficient way to calculate the coherent risk measure to fulfill the goal of integrated risk management.
關聯 Journal of Derivatives, 17(3), 33-44
資料類型 article
DOI http://dx.doi.org/10.3905/jod.2010.17.3.033
dc.contributor 財管系
dc.creator (作者) Yueh, Meng-Lan;Wong, Mark C. W.
dc.creator (作者) 岳夢蘭;Wong, Mark C. W.zh_TW
dc.date (日期) 2010-03
dc.date.accessioned 8-Jan-2015 18:05:57 (UTC+8)-
dc.date.available 8-Jan-2015 18:05:57 (UTC+8)-
dc.date.issued (上傳時間) 8-Jan-2015 18:05:57 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/72726-
dc.description.abstract (摘要) Expected shortfall is a coherent risk measure proposed to remedy the weakness of the widely used Value-at-Risk (VaR). However, calculation of expected shortfall is time consuming due to the lack of closed-form formulae. In this article, we employ the Fourier transform techniques to derive analytic expressions for VaR and expected shortfall for quadratic portfolios exposed to multivariate normally distributed risk factors. Our numerical results show that the proposed analytical expressions for the two risk measures are accurate and much faster than alternative Monte Carlo simulations. We thus argue that expected shortfall should be used in conjunction with VaR to provide useful information for aggregating and assessing portfolio risks. From this perspective, the derived analytic expressions provide an efficient way to calculate the coherent risk measure to fulfill the goal of integrated risk management.
dc.format.extent 123 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Journal of Derivatives, 17(3), 33-44
dc.title (題名) Analytical VaR and Expected Shortfall for Quadratic Portfolios
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.3905/jod.2010.17.3.033en_US
dc.doi.uri (DOI) http://dx.doi.org/10.3905/jod.2010.17.3.033en_US