基于DEA模型的甘肃省经济运行和环境管理效率评价研究

An Assessment of Economic Operation and Environmental Management Efficiencies Based on DEA Model

评价经济运行和环境管理效率是衡量城市运行功能的两个重要方面,对位于生态脆弱、经济发展相对落后的西部地区更显重要.利用DEA方法中的CRS模型,计算了甘肃省12个大、中城市的2003年和2004年的经济运行效率和环境管理效率指数,并结合使用CRS模型和VRS模型的运行结果判断出各城市的规模收益情况.结果表明:2003年这12个城市中有嘉峪关、金昌、白银、平凉、庆阳和陇南共6个城市实现了经济运行效率的DEA有效,同时,嘉峪关、金昌、白银、张掖、酒泉和定西这6个城市实现了环境管理效率DEA有效;2004年经济运行效率实现DEA有效的有嘉峪关、金昌、天水、庆阳和陇南,实现环境管理效率DEA有效的有嘉峪关、金昌、白银、平凉、酒泉和定西.在没有实现DEA有效的城市中除了兰州是规模收益下降外,其它的都处于规模收益上升阶段.结合评价结果,给出了建立城市经济运行效率和环境管理效率评价监测体系、合理分配资源投入的对策建议.

Assessing the economic operation and environmental management efficiencies （EOE and EME） may measure the principal functions of a city, especially for the cities in West China. In this paper, the EOE and EME indexes of the 12 municipalities of Gansu province from 2003 to 2004 are calculated by using CRS model of DEA, and their scale revenues are evaluated by using the results of CRS model and VRS model. Analyzing the calculation results finds that Jiayuguan, Jinchang, Baiyin, Qingyang and Longnan municipalities are of technical efficiency in the aspect of EOE, and Jiayuguan, Jinchang, Baiyin, Zhangye, Jiuquan and Dingxi municipalities are of technical efficiency in the aspect of EME in 2003. While, Jiayuguan, Jinchang, Tianshui, Qingyang and Longnan municipalities are of technical efficiency in EOE, and Jiayugan, Jinchang, Baiyin, Pingliang, Jiuquan and Dingxi municipalities are of technical efficiency in EME in 2004. The rest municipalities which are not of technical efficiency have a increasing scale revenue, except for Lanzhou municipality, of which the scale revenue is decreasing. At last, some suggestions are put forward according the assessment, such as, to set up assessing and monitoring systems of the EOE and EME and to allocate resources investment rationally.