中文摘要：

运用超效率DEA模型测得2004-2013年中原经济区30个省辖市的城市效率水平并对其时空演变特征及区域差异进行了分析.结果表明：（1）2004-2013年中原经济区城市效率的发展具有一定的空间邻近性和波动性,城市效率发展总体呈上升趋势,且城市效率水平相当的城市在区位上较为集中;（2）中原经济区城市效率水平区域差异明显,城市效率高水平区由2004年的中部、北部转移到2013年的西部和东部;（3）郑州、漯河、济源、亳州、邯郸、长治、晋城和运城等8个城市的城市效率属于高效稳定型,开封、洛阳、平顶山、濮阳、许昌、南阳、周口、淮北、宿州、蚌埠、聊城、菏泽、三门峡和邢台等14个城市属于波动变化型,其余的8个城市则属于亟待增强型.

英文摘要：

In this paper,we employed super data envelopment analysis method to give a quantitative research on the urban efficiency level of 30 cities in Central Plains Economic Region during 2004-2013.We also analyzed the character of spatiotemporal pattern evolution and the regional differences.The research showed that the development of urban efficiency in Central Plains Economic Region had a certain spatial proximity and fluctuation.Especially the cities with high level of urban efficiency showed a continuous distribution in space.We also found that the development of the urban efficiency was on a upward trend as a whole and the urban efficiency did not show a positive correlation with the regional economic development level.The urban efficiency level of the western and eastern of Central Plains Economic Region increased year by year.In particular,the western had a great increased margin.On the contrary,the midland showed downtrend in general.The difference of the efficiency level among the cities in Central Plains Economic Region was obvious.From 2004 to 2013,the high level areas of urban efficiency transferred from the central and northern to the east and west of Central Plains Economic Region.According to the character of spatiotemporal pattern evolution,the 30 cities were divided into three types,including the highly efficient and stable type,the fluctuation change type and the type of urgent need to strengthen.Zhengzhou and other7 cities belong to the highly efficient and stable type,and these cities reached the optimal state at least eight years which highlighted their high efficiency and stability.At the same time,though,the reasons promoted them to reach the optimal state were quite different and we analyzed them respectively.Kaifeng,Luoyang and other 12 cities werethe fluctuation change type and the rest of the cities were the type of urgent need to strengthen.We also analyzed them in detail.For the cities in Central Plains Economic Region,the scale effect should fully develop its action in the future.At the sa