谈股市有效性传统度量方法的缺陷

本文认为基于层次划分来度量股市有效性的方法存在一些缺陷,主要表现在信息遗漏和结论表述错误,导致检验结论并不具备较高的可信度;三个层次间的递进关系并非严格成立;无法清晰反映有效性渐进变动过程和同层次股市间的有效性差异。对此,应当放弃层次划分,改为综合评价体系对股市有效性进行评判。

Statistic Measurement and Empirical Research on Sustainable Development of China Internet

In this paper,the concepts of green development and coordinated development of the Internet are proposed,and the connotation of sustainable development of the Internet is defined further.Based on these,by using the comprehensive evaluation method,the Internet sustainable development index(ISDI) system is created and designed,the sustainable development level of the Internet in China is evaluated and measured systematically,and corresponding policy suggestions are given.