摘要
本文首先对回报率与交易量之间的关系进行了研究,发现并不存在非对称的数量关系,但存在双向的葛兰杰因果关系;同时将交易量对波动率的解释能力进行了研究,发现在沪市交易量对波动率具有解释力,而在深市交易量对波动率没有解释力。
This article analyzes the relation between stock return and trading volume in stock markets, and we find that the relation isn't asymmetry, but there exists a bilateral Granger causality. In addition, the paper studies the expository power of trading volume for stock volatility, and the results show that the impact on volatility in Shanghai stock market is significant, but in Shenzhen stock market is insignificant.
出处
《运筹与管理》
CSCD
2007年第6期123-127,共5页
Operations Research and Management Science