How does stock market volatility react to NVIX? Evidence from developed countries

被引:14
|
作者
Fang, Libing [1 ]
Qian, Yichuo [1 ]
Chen, Ying [1 ]
Yu, Honghai [1 ]
机构
[1] Nanjing Univ, Sch Management & Engn, Nanjing, Jiangsu, Peoples R China
基金
美国国家科学基金会;
关键词
News-based implied volatility; Uncertainty; Stock market volatility; GARCH-MIDAS; ECONOMIC-POLICY UNCERTAINTY; MACROECONOMIC VARIABLES; REALIZED VOLATILITY; PREDICTIVE ACCURACY; MODELS; US; FORECAST; DISASTER;
D O I
10.1016/j.physa.2018.03.039
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This paper investigates the role of news implied volatility (NVIX), a measure of uncertainty, in long-term stock market volatility in developed markets. The results showed that NVIX has a positive and significant impact on stock market variances in the full sample period using the GARCH-MIDAS model. Furthermore, out-of-sample forecasting results showed that including NVIX generally improves forecasting performance; that is, the GARCH-MIDAS model, with the long-term component driven by realized volatility (RV) and NVIX, outperforms those with only RV in terms of forecasting performance. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:490 / 499
页数:10
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