中文摘要：

为更好地了解西部省市的物流发展水平,促进西部省市物流发展,运用三阶段DEA方法,将非期望产出的二氧化碳排放指标作为投入变量,对我国西部11省市的2009年-2011年的物流效率进行了实证分析.研究结果表明：外部环境因素对西部物流效率影响显著;第三阶段调整后的西部省市物流值变化明显,内蒙古、贵州、宁夏3省达到了技术效率前沿,云南和四川省效率值均低于平均值;其余省市效率值有不同程度的提高.最后从外部环境和效率两方面提出了一些建设性意见.

英文摘要：

To know more about the development level of logistics and improve the development of logistics in western provinces and municipality, this paper does empirical study on the logistics efficiency of the 11 western provinces and municipality in the year of 2009-2010 under the constraints of the carbon emissions with the threestage DEA. It is found that the external environmental factors affect the western logistics efficiency significantly; and the third stage logistics efficiency value of western provinces and municipality changes a lot. Inner Mongolia Autonomous Region, Guizhou province, Ningxia Hui Autonomous Region are at the effective forefront; efficiency values of Yunnan and Sichuan provinces are below the average; the efficiency value of the rest increases in various degrees. Finally some constructive suggestions are proposed from the respect of environmental variables and efficiency values.