摘要
利用趋势平稳过程对石油价格和卢布汇率价格序列进行处理,应用Copula-kernel模型对石油价格和卢布汇率的尾部相关性进行了研究。实证分析结果表明,国际油价和卢布汇率之间存在明显非对称的尾部相依结构。
The time trend of oil prices and the ruble exchange rates is removed using trend stationary process respectively,then the tail correlation between them was analyzed based on Copula-kernel method.The results show that there exists an asymmetric tail dependence structure between the oil prices and the ruble exchange rates.
出处
《青岛大学学报(自然科学版)》
CAS
2016年第1期15-18,23,共5页
Journal of Qingdao University(Natural Science Edition)
基金
山东省自然科学基金(批准号:ZR2014AM019)资助