摘要
本文利用扩展的4维(E)DCC-MGARCH(1,1)模型,分析了四个原油市场(Brent、WTI、Dubai、China)之间的相互波动溢出效应。研究表明,Brent、WTI原油市场对我国市场均有显著的单向波动溢出效应,WTI原油市场比Brent原油市场对我国原油市场的波动溢出效应更明显。我国和美国原油市场波动都是暂时的,而Brent原油市场波动性是持久的。我国原油市场对Dubai原油市场有单向的波动溢出效应。结果还显示,Brent与WTI原油市场有双向波动溢出效应,Brent的波动溢出效应小于WTI波动溢出效应。
In this paper, we apply the four-dimensional (E)DCC-MGARCH(1,1) model to analyze the volatility spillover effects between the four crude oil markets, Brent, WTI, Dubai and Daq (China). The results show that there exist significant volatility spillover effects of Brent and WTI on Daq crude oil market and that the volatility spillover effect of WTI on Daq is stronger than the volatility spillover effect of WTI on Daq. The volatilities of WTI and Daq are temporary and the volatility of Brent is persistent. The study also shows that there exist significant volatility spillover effects of Daq on Dubai.
出处
《数理统计与管理》
CSSCI
北大核心
2012年第4期571-584,共14页
Journal of Applied Statistics and Management
基金
教育部人文社会科学重点研究基地重大研究项目(2009JJD790004)
教育部人文社会科学研究项目(09YJA790028)
辽宁省教育厅创新团队项目(2008T054)
科技部创新方法专项资助(2009IM010400)
关键词
波动溢出
多元GARCH模型
原油价格
DCC模型
Volatility spillover, Multivariate GARCH model, crude oil price, (Extended) DCC model