环境约束下的用水绩效及收敛性分析——以浙江省11市为例

将废水排放量作为非期望产出纳入DEA评价模型，分析了浙江省2002-2010年11个城市用水静态与动态绩效，进而探讨了浙江省用水绩效增长差距及其时间演变趋势。研究表明：浙江省用水绩效整体上呈递增趋势并在地域分布上发生显著变化；浙江省用水绩效提高主要受技术效率指数影响；从收敛性来看，发达城市、中等发达城市及浙江省整体表现为俱乐部收敛特征，经济规模、生活和生产用水管制力度、人口密度与实际利用外资等是影响条件收敛的主要原因。

Analysis on Water Utilization Performance and Dynamic Convergence under Environmental Constraint -- A Case Study of 11 Cities in Zhejiang Province

Taking the effluent volume into DEA evaluation model as an un-expectation output,this paper an-alyzes the static and dynamic water utilization performance of 11 cities in Zhejiang province,and then dis-cusses the regional differences of water utilization performance and its evolution trend. The study shows：the water utilization performance in Zhejiang province is in progress and has a significant change in regional distribution;from the point of convergence,the developed cities,the middle-developed cities and Zhejiang province on the whole present the characteristics of club convergence. The main causes of the convergence are economic scale,control strength of water consumption in living or production,population density and FDI practically in use.