Empirical Study on Company Scale Economies Based on the DEA Model

摘要

DEA using data analysis has obvious advantages in company economies of scale. In this paper, a sample of listed electric power companies was used to establish the method of using DEA model to analyze, and point out this application model's data choose , indicator identify and assumptions of the condition. The present paper validates scale economy effects of the sample companies, including overall performance, technical performance and scale performance, which has great theoretical and practical significance to the study of company scale economies.