基于数据包络分析的BCC模型和超效率模型,对我国23个较有影响的财经资讯类网站的信息传播效率进行评价。结果表明:整体来看,23个财经资讯网站中有17个网站在BCC模型下综合效率达到了DEA有效,SE-DEA模型可以对这些DEA有效的网站进行比较和排名。分季度来看,8个季度中有6个季度综合效率达到有效的网站超过一半,但不同网站的效率和排名差异较大。从网站效率的变异分析来看,在研究时间区间内,财经资讯类网站的效率呈现出收敛趋势,但不同网站间效率的波动率差异较大。
This paper conducted an empirical research on efficiency evaluation on information dissemination of 23 financial information websites, based on BCC model and Super-Efficiency model of data envelopment analysis. The results show that there are 17 websites (in the 23 websites selected) of which the overall efficiency can reach the DEA valid state in BCC model, and application of SE-DEA model can compare and rank those efficient websites. In quarterly view, there are more than halfwebsites' efficiency achieve the DEA valid state in 6 quarters of the 8, while the efficiencies and rankings of the financial information websites show significant differences. Additionally, from the variation analysis, the efficiencies of all the financial information websites shows a trend of convergence, while the volatility of websites' efficiencies are quite different.