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How does news sentiment impact asset volatility? Evidence from long memory and regime-switching approaches
Ho, Kin-Yip; Shi, Yanlin; Zhang, Zhaoyong - In: The North American Journal of Economics and Finance 26 (2013) C, pp. 436-456
Conditionally Heteroskedastic (FIGARCH) and the two-state Markov Regime-Switching GARCH (RS-GARCH) models. For most of the DJN 65 … FIGARCH generally outperforms RS-GARCH. … a greater impact on volatility than positive news. Furthermore, the results from the RS-GARCH model indicate that news …
Persistent link: https://www.econbiz.de/10010730257
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Modeling high-frequency volatility with three-state FIGARCH models
Shi, Yanlin; Ho, Kin-Yip - In: Economic modelling 51 (2015), pp. 473-483
Persistent link: https://www.econbiz.de/10011476127
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How does news sentiment impact asset volatility? : evidence from long memory and regime-switching approaches
Ho, Kin-Yip; Shi, Yanlin; Zhang, Zhaoyong - In: The North American journal of economics and finance : a … 26 (2013), pp. 436-456
Persistent link: https://www.econbiz.de/10010367572
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Modeling high frequency data with long memory and structural change: A-HYEGARCH model
Shi, Yanlin; Yang, Yang - In: Risks 6 (2018) 2, pp. 1-28
In this paper, we propose an Adaptive Hyperbolic EGARCH (A-HYEGARCH) model to estimate the long memory of high frequency time series with potential structural breaks. Based on the original HYGARCH model, we use the logarithm transformation to ensure the positivity of conditional variance. The...
Persistent link: https://www.econbiz.de/10011996584
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Modeling high frequency data with long memory and structural change : A-HYEGARCH model
Shi, Yanlin; Yang, Yang - In: Risks : open access journal 6 (2018) 2, pp. 1-28
In this paper, we propose an Adaptive Hyperbolic EGARCH (A-HYEGARCH) model to estimate the long memory of high frequency time series with potential structural breaks. Based on the original HYGARCH model, we use the logarithm transformation to ensure the positivity of conditional variance. The...
Persistent link: https://www.econbiz.de/10011811728
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A discussion on the robustness of conditional heteroskedasticity models : simulation evidence and applications of the crude oil returns
Shi, Yanlin - In: Finance research letters 44 (2022), pp. 1-8
Persistent link: https://www.econbiz.de/10014494772
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Long memory or regime switching in volatility? : evidence from high-frequency returns on the U.S. stock indices
Gao, Guangyuan; Ho, Kin-Yip; Shi, Yanlin - In: Pacific-Basin finance journal 61 (2020), pp. 1-20
Persistent link: https://www.econbiz.de/10012494892