中文摘要：

利用DEA模型、城市开发程度指数和耦合度模型测算2003—2012年间东北地区37个地级以上城市的城市效率、城市开发程度以及两者的耦合度,并分析了城市效率、城市开发程度及两者耦合度的时空演变特征,探讨城市开发程度与城市效率的关系。结果显示：①城市开发程度与城市效率耦合度水平不高,城市开发对城市效率的提升作用不显著;不同职能城市的效率差异化特征显著,省会城市要素投入冗余,而资源型城市、工业型城市要素投入不足。②近十年,城市开发程度与城市效率呈现负相关,经济发展水平、人口密度提升对城市效率有促进作用,而城市建设用地面积与城市效率呈负相关。③城市效率、城市开发程度与耦合度空间高匹配度的“群”分布特征愈发显著。

英文摘要：

In this paper, by using DEA model, urban development degree index model and the coupling degree model to estimate urban efficiency, urban development degree and coupling degree of 37 prefecture- level cities between years2003 to 2012. Analyzing the temporal and spatial evolution and exploring the relationship characteristics of urban efficiency, urban development degree and the degree of coupling between the two. The results showed that： 1）The coupling degrees of urban efficiencies and urban development degrees are not so high, and there is no significant improvement of the urban efficiency promoted by urban expansion. There is a significant diversity characteristics of the urban efficiency between the different function cities, the capital city showed input redundancy, resource based and traditional industrial city showed the shortage of input. 2）There is a negative correlation between urban development degree and urban efficiency in recent ten years, the level of economic development and the population density have promoted the urban efficiency, however, the urban constructional land area has negative relationship with urban efficiency. 3） The high matching level of urban efficiency, urban development degree and the degree of coupling between the two in space presents a more and more remarkable agglomeration characteristics.