关键词: 关键词：上市公司, 经营效率, 区域比较, DEA模型

Abstract: Abstract: The Operating efficiency of listed companies is an important measure of sustainable development for a region and companies. Using DEA method, this paper analyzed empirically the regional differences on operating efficiency of listed companies in the northeast China. The conclusions verify the historical status and traditional advantage of northeast old industry base and reveal the operating efficiency differences, industry features and development trends of northeast three provinces. By projection analysis, the paper discusses the exiting problems and improvement approach of the inefficient companies that provide a new perspective to research and evaluate the regional differences of listed companies operating efficiency.

Key words: Key words: Listed Companies, Operating Efficiency, Regional Comparison, DEA Model