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.
机构:
Univ Econ Ho Chi Minh City, 59C Nguyen Dinh Chieu St Dist 3, Ho Chi Minh City, Vietnam
CFVG Ho Chi Minh City, 91 Ba Thang Hai St,Dist 10, Ho Chi Minh City, VietnamUniv Econ Ho Chi Minh City, 59C Nguyen Dinh Chieu St Dist 3, Ho Chi Minh City, Vietnam