摘要
Eugene Fama所确认的"弱—半强—强"三个层次一直被用以度量股市的有效性程度,但因该理论存在很多缺陷,故采用统计指数对股市有效性进行综合评价,将股市有效性以指数的形式量化表示,该指数可被视为股市在有效性上的"得分"。将股市有效性以统计指数的形式加以测度,可以很好地克服Fama理论中的种种弊端。
According to the traditional theory presented by Eugene Fama, there are three kinds of efficiency of stock markets: weak and semi--strong and strong. There are some faults in Fama's theorerm In this paper, a new measurement based on statistical index is put forward. When this index is used to measure the efficiency of stock markets, those faults in Fama's theorem could be conquered.
出处
《统计与信息论坛》
CSSCI
2011年第10期22-27,共6页
Journal of Statistics and Information
基金
湖北省教育厅人文社会科学项目<湖北籍上市公司绩效的动态综合评价>(2010q132)
关键词
股市有效性
综合指数
测度
:efficiency of stock markets
index
measurement