2020
DOI: 10.1371/journal.pone.0232508
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Relationship between uncertainty in the oil and stock markets before and after the shale gas revolution: Evidence from the OVX, VIX, and VKOSPI volatility indices

Abstract: We investigate the relationship between crude oil prices and stock markets. Unlike prior studies, we use implied volatility indices and evaluate the change in the relationship between the volatility indices through a sub-period analysis. Specifically, we examine the causal relationships among the crude oil, S&P 500 index, and KOSPI 200 index volatilities by using the autoregressive distributed lag (ARDL) bounds and the Toda-Yamamoto Granger causality tests. In addition, a BEKK-GARCH model is employed to enhanc… Show more

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Cited by 21 publications
(15 citation statements)
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“…rough this subperiod analysis, we investigate the change in the forecasting performance of all methods in both high-variance and relatively low-variance data. is kind of subperiod analysis is common in other studies [48][49][50][51].…”
Section: Introductionmentioning
confidence: 99%
“…rough this subperiod analysis, we investigate the change in the forecasting performance of all methods in both high-variance and relatively low-variance data. is kind of subperiod analysis is common in other studies [48][49][50][51].…”
Section: Introductionmentioning
confidence: 99%
“…e cross-market spillover effect we found can give some advice to correctly diversify investment and reduce risks. (1) e empirical results show that WTI and Brent oil future have more spillover to both spot price and future price. e oil future played an important role in the energy market and economic.…”
Section: Discussionmentioning
confidence: 96%
“…where y t represents the historical logarithmic return of crude oil and stock prices. Equation (1) shows the basic model with the known y t and the unknown ψ t which are unobservable variables. We combined the Ganger-MSV model and the dynamic-MSV model as Yu and Meyer [33] and replace N-distribution with T-distribution:…”
Section: Multivariate Stochastic Volatility Modelmentioning
confidence: 99%
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“…Testing is also performed using subperiod analysis to investigate whether data deviations and outliers affect model training. Such subperiod analysis has been commonly implemented in previous studies (Sharma et al [36], García and Kristjanpoller [37], Ramos-Pérez et al [17], and Choi and Hong [38]). Specifically, we split the entire sample period into three subperiods called Period 1 (January, 2010 to December, 2015), Period 2 (January, 2016 to December, 2016), and Period 3 (January, 2017 to December, 2019).…”
Section: Introductionmentioning
confidence: 99%