摘要
针对中国股市收益率序列中的长记忆性问题,采用R/S非线性估计方法和ARFIMA模型进行了实证研究。结果表明:中国股市收益率普遍存在长记忆性,只有个别股票不存在长记忆性,而且深市比沪市具有更强的长记忆性。
R/S non-linear estimate and ARFIMA model are used to study the long memory in Chinese stock returns. The results show: long memory exist on Chinese stock returns only except for a few samples, long memory in Shenzhen stock is more powerful than those in Shanghai stock.
出处
《管理工程学报》
CSSCI
2007年第2期115-117,共3页
Journal of Industrial Engineering and Engineering Management