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Keywords = expectile-based VaR (EVaR)

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17 pages, 870 KB  
Article
Downside Risk in Australian and Japanese Stock Markets: Evidence Based on the Expectile Regression
by Kohei Marumo and Steven Li
J. Risk Financial Manag. 2024, 17(5), 189; https://doi.org/10.3390/jrfm17050189 - 2 May 2024
Cited by 1 | Viewed by 2843
Abstract
The expectile-based Value at Risk (EVaR) has gained popularity as it is more sensitive to the magnitude of extreme losses than the conventional quantile-based VaR (QVaR). This paper applies the expectile regression approach to evaluate the EVaR of stock market indices of Australia [...] Read more.
The expectile-based Value at Risk (EVaR) has gained popularity as it is more sensitive to the magnitude of extreme losses than the conventional quantile-based VaR (QVaR). This paper applies the expectile regression approach to evaluate the EVaR of stock market indices of Australia and Japan. We use an expectile regression model that considers lagged returns and common risk factors to calculate the EVaR for each stock market and to evaluate the interdependence of downside risk between the two markets. Our findings suggest that both Australian and Japanese stock markets are affected by their past development and the international stock markets. Additionally, ASX 200 index has significant impact on Nikkei 225 in terms of downside tail risk, while the impact of Nikkei 225 on ASX is not significant. Full article
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29 pages, 422 KB  
Article
The Financial Risk Measurement EVaR Based on DTARCH Models
by Xiaoqian Liu, Zhenni Tan, Yuehua Wu and Yong Zhou
Entropy 2023, 25(8), 1204; https://doi.org/10.3390/e25081204 - 13 Aug 2023
Cited by 3 | Viewed by 2429
Abstract
The value at risk based on expectile (EVaR) is a very useful method to measure financial risk, especially in measuring extreme financial risk. The double-threshold autoregressive conditional heteroscedastic (DTARCH) model is a valuable tool in assessing the volatility of a financial asset’s return. [...] Read more.
The value at risk based on expectile (EVaR) is a very useful method to measure financial risk, especially in measuring extreme financial risk. The double-threshold autoregressive conditional heteroscedastic (DTARCH) model is a valuable tool in assessing the volatility of a financial asset’s return. A significant characteristic of DTARCH models is that their conditional mean and conditional variance functions are both piecewise linear, involving double thresholds. This paper proposes the weighted composite expectile regression (WCER) estimation of the DTARCH model based on expectile regression theory. Therefore, we can use EVaR to predict extreme financial risk, especially when the conditional mean and the conditional variance of asset returns are nonlinear. Unlike the existing papers on DTARCH models, we do not assume that the threshold and delay parameters are known. Using simulation studies, it has been demonstrated that the proposed WCER estimation exhibits adequate and promising performance in finite samples. Finally, the proposed approach is used to analyze the daily Hang Seng Index (HSI) and the Standard & Poor’s 500 Index (SPI). Full article
(This article belongs to the Special Issue Advanced Statistical Applications in Financial Econometrics)
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