Forecasting the value-at-risk of Chinese stock market using the HARQ model and extreme value theory
Forecasting the value-at-risk of Chinese stock market using the HARQ model and extreme value theory
复制标题
利用HARQ模型和极值理论预测中国股市风险价值
DOI:
10.1016/j.physa.2018.02.033
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发表时间:
2018-06
期刊:
影响因子:
--
通讯作者:
Hu Yang
中科院分区:
文献类型:
--
作者:
Liu Guangqiang;Wei Yu;Chen Yongfei;Yu Jiang;Hu Yang
Using intraday data of the CSI300 index, this paper discusses value-at-risk (VaR) forecasting of the Chinese stock market from the perspective of high-frequency volatility models. First, we measure the realized volatility (RV) with 5-minute high-frequency returns of the CSI300 index and then model it with the newly introduced heterogeneous autoregressive quarticity (HARQ) model, which can handle the time-varying coefficients of the HAR model. Second, we forecast the out-of-sample VaR of the CSI300 index by combining the HARQ model and extreme value theory (EVT). Finally, using several popular backtesting methods, we compare the VaR forecasting accuracy of HARQ model with other traditional HAR-type models, such as HAR, HAR-J, CHAR, and SHAR. The empirical results show that the novel HARQ model can beat other HAR-type models in forecasting the VaR of the Chinese stock market at various risk levels.
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