The Spatio-Temporal Evolution Characteristics and Mechanism of Yangtze River Delta City Logistics Development Efficiency
基于2002-2011年数据，用DEA方法分析长三角城市物流发展效率的时空演化特征，发现效率整体上升但存在规模不经济，空间异质性增强，沿海港口和综合交通枢纽城市效率较高。
Based on the input-output index of city logistics,by using the method of DEA and exploring statistics,the paper has tried to analyze the whole evolution trend,structure and spatial pattern'evolutionary process and its evolutionary mechanism of Yangtze river delta City logistics development efficiency from 2002 to 2011.The analysis shows that: 1) the whole efficiency of Yangtze River delta City logistics development is increasing from 2002 to 2011,but there is a plenty of developing space for production factors and the Logistics industry investment is still in diseconomies of scale. 2) Each city logistics development efficiency shows the different features,and it can't keep balance with the city's economic developing level. 3)Spatial heterogeneity of logistics development efficiency in Yangtze River delta City is enhanced,but the coastal port cities and comprehensive transportation hub cities show the high efficiency of logistics development. The study suggests that: Location advantage base,economy policy,industrial transition and upgrade,investment of infrastructure construction,the progress of technology and consumption need's stimulation promote the transformation of spatial pattern of city logistics development efficiency.