Le, Duong T - In: International Journal of Financial Research 6 (2015) 1, pp. 1-13
oil market is characterized by volatility persistence, (2) a negative shock has more impact on future volatility than an … equal positive shock, (3) crude oil volatility is lower at higher prices, (4) OPEC meeting announcements and the Petroleum … employ an improved procedure for testing and quantifying the hypothesized volatility determinants within GARCH type model. …