摘要
以我国33家环保产业上市公司为研究对象,根据其主营业务分类,运用数据包络分析法(DEA),对其2007-2009年的技术效率与规模效率及其变化情况进行实证研究并分析,发现我国环保产业上市公司整体效率水平不高、技术水平偏低、呈现先下降后上升趋势。
According to their main business categories,the article mainly focuses on 33 listed companies for the study of environmental protection industry in China,using data envelopment analysis method,analyzing its technical efficiency and scales of 2007-2009 efficiency and its changes.In line with the empirical results,we can conclude that those company＇s overall efficiency and technological level are not high,rendering a first decline after an upward trend.
出处
《中南林业科技大学学报（社会科学版）》
2011年第6期89-91,共3页
Journal of Central South University of Forestry & Technology（Social Sciences）
关键词
环保产业上市公司
DEA
效率分析
listed company of environmental protection industry
DEA
efficiency
