Comprehensive Measurement and Spatial Distinction of Input-output Efficiency of Urban Agglomerations in China
Comprehensive Measurement and Spatial Distinction of Input-output Efficiency of Urban Agglomerations in China
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发表时间：
2011
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通讯作者：
Fang Chuanglin
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作者：
Fang Chuanglin
城市群是我国未来经济发展中最具活力和潜力的核心区域，在生产力布局中发挥着重要作用，是我国主体功能区划分中的重点发展区和优化发展区。然而，在推动城市群经济快速增长的同时，高密度聚集所带来的高强度互动也造成了对自然环境的高风险威胁。我们如何评估高密度城市群的效应？基于此，从投入产出效率的视角，运用CRS模型、VRS模型和Bootstrap-DEA方法，构建了城市群投入产出效率指标体系，并对中国城市群投入产出效率的变化趋势和空间分异进行了综合测度。结果表明，我国城市群的投入产出效率较低且呈下滑趋势。2002年和2007年，我国城市群的综合投入产出效率分别为0.853和0.820，平均下降了0.033。同样，我国城市群的技术效率和规模效率均较低且呈下滑趋势; Bootstrap-DEA模型修正后的我国城市群投入产出效率较低，但更可靠、有效。城市群的投入产出效率从东部地区向中西部地区逐渐降低。2002年和2007年，东中部城市群的综合投入产出效率、技术效率和规模效率均高于西部地区，这与我国区域经济发展格局相关。城市群的技术效率和生产效率也从东部向中西部逐渐降低。研究旨在为评价我国高密度城市群的集聚效应提供定量依据，进而为提高我国城市群的投入产出和空间集聚效率的决策奠定坚实的基础。
Urban agglomerations in China which perform a vital role in distribution of productive forces are the most dynamic and potential core area in future economic development, and are the key and optimized development districts in the division of main-function zones. However, while driving up rapid economic growth of urban agglomerations, high-intensity interaction caused by high-density aggregation also contributed to high-risk threats to natural environment. How do we assess the effect of high-density urban agglomerations? Accordingly, from the perspective of input and output efficiency, this paper established input and output efficiency indicator system of urban agglomerations, using CRS model, VRS model and Bootstrap-DEA, and measured the changing trend and spatial differentiation of input and output efficiency of urban agglomerations in China comprehensively. Results showed that input and output efficiency of urban agglomerations in China is low and slipping. In 2002 and 2007, comprehensive input and output efficiency of urban agglomerations in China was respectively 0.853 and 0.820, which dropped by an average of 0.033. Similarly, technical and scale efficiency of urban agglomerations in China is low and slipping; Input and output efficiency of urban agglomerations in China modified by Bootstrap-DEA model is lower but more reliable and effective. Input and output efficiency of urban agglomerations decreases gradually from the eastern region to the central and western regions of China. In 2002 and 2007, comprehensive input and output efficiency, technical efficiency and scale efficiency of urban agglomerations in eastern and central regions were higher than those in the western region, which was correlated with the regional economic development pattern in China. Otherwise, technical and production efficiency of urban agglomerations also decreases gradually from the eastern to the central and western regions. This study aims to provide a quantitative basis for assessing the effect of high-density urban agglomerations in China, and further lay a solid foundation for decision-making of improving input and output and spatial agglomeration efficiency of urban agglomerations in China.