摘要
采用ACARR模型对布伦特原油的价极差数据进行分析,以研究布伦特原油价格的波动性。假设ACARR模型残差项分别服从标准指数分布、标准Weibull分布和标准化的广义Gamma分布,通过实证研究得到以下结论:首先,布伦特原油价格的正向极差和负向极差不服从正态分布,具有不对称性;其次,布伦特原油价格的正向极差和负向极差均存在一定的持续性;最后,布伦特原油价格的正向极差和负向极差的长期趋势均强于短期趋势。
This paper used ACARR model to study the volatility of Brent crude oil price by analyzing the price range data. We assumed that the residual items of ACARR model follow standard exponential distribution, standard Weibull distribution and standardized generalized Gamma distribution respectively. From the empirical results,we conclude that: firstly,the upside range and downside range of crude oil price don't follow normal distribution and asymmetry; secondly,both the upside range and downside range of Brent crude oil prices are persistent; Finally,both the upside range and downside range of Brent crude oil prices have stronger long-term impact effect of shocks than short-term impact effect of shocks.
出处
《重庆理工大学学报(自然科学)》
CAS
2016年第3期51-56,共6页
Journal of Chongqing University of Technology:Natural Science
基金
国家社会科学基金资助项目(14CTJ012)
作者简介
郭名媛(1979-),女,天津人,博士,副教授,主要从事金融系统分析研究;
蒲赢健(1991-),女,甘肃天水人,硕士研究生,主要从事金融时间序列分析研究。