基于DEA模型的湖南省资源型城市效率变化研究

资源型城市效率是衡量资源型城市可持续发展水平的重要依据。利用DEA模型和Malmquist生产率指数,对2002和2009年湖南省资源型城市效率及变化进行了深入研究。研究发现,湖南资源型城市综合效率水平和效率最优城市数量下降明显;从分类特征来看,煤炭城市的综合效率呈上升趋势,有色冶金城市、黑色冶金城市和非金属城市皆呈下降趋势。从城市效率变化来看,城市综合效率的变化呈下降趋势,技术变化和城市生产率变化呈明显进步趋势;从分类特征来看,各类城市综合效率平均变化值小于1,呈下降趋势,煤炭城市由于技术进步使生产率提高58.2%,其余各类型城市皆呈下降趋势。

The Efficiency Changes of Hunan's Resources-based Cities Empolying DEA and Malmquist Index Models

The efficiency of resource-based is an important basis for measuring the sustainable level of resource-based cities.This paper employing DEA model and Malmquist productivity index to probe into the urban efficiency of resources-based cities in Hunan province and its changes from 2002 to 2009.The study found that the overall efficiency level of resources-based cities and the number of optimal efficiency cities are decreasing.From the perspective of classification characteristics,the overall efficiency of coal city shown an increasing trend,but non-ferrous metallurgy class city,ferrous metallurgy class city and non-metallic kind of city have shown a decreasing trend.The analysis of urban efficiency changes shown that the change of urban comprehensive efficiency have shown a downward trend.In contrary,the index of the technological change and productivity change in cities have shown significant improvement trend.In terms of the classification of urban efficiency changes,for various types of urban,the average change in value of overall efficiency and the productivity index are less than 1,shown a downward trend.But due to technical advances,in contrary,the productivity of coal town have a 58.2% increased.