摘要
运用VAR-DCC-GARCH模型,研究LME金属价格与中国金属价格间的联动效应及其动态相关性。结果表明:LME金属价格依然对中国金属价格有着较大的影响,而中国除了铅价外,其余金属价格对LME金属价格的影响还很微弱;中国铜、铅、锌价格与LME价格间均存在正向的联动性;LME金属价格与中国金属价格之间的联动性在反应时间上存在滞后性,滞后期在7到8个交易日左右;LME金属价格和中国金属价格间的互动影响关系存在时变性,其中,LME铅价与中国铅价间的相互关联最稳定。
Using VAR-DCC-GARCH model,the literature on commodity price was extended by exploring the co-movement between Chinese nonferrous metal prices and global nonferrous metal prices represented by the nonferrous metal prices from London Metal Exchange(LME).The results show that LME nonferrous metals prices still have a greater impact on Chinese nonferrous metals prices.However,the impact of Chinese nonferrous metals prices on LME nonferrous metals prices is still weak except for lead price.The co-movement of nonferrous metal prices between LME and China presents hysteretic nature,and it lasts for 7-8trading days.Furthermore,the co-movement between LME nonferrous metals prices and Chinese nonferrous metals prices has the characteristics of time-varying,and the correlation of lead prices between LME and China is the more stable than all other nonferrous metals prices.
基金
Project(71073177)supported by the National Natural Science Foundation of China
Project(12JJ4077)supported by the Natural Science Foundation of Hunan Province of China
Project(2012zzts002)supported by the Fundamental Research Funds of Central South University,China
