中文摘要：

基于对西部商贸流通业发展水平和发展能力的综合反映，构建包括商贸流通业发展基础、贡献、状况和成长力四个一级指标的综合评价指标体系，通过时序全局主成分分析法对西部12省份2005--2010年商贸流通业发展综合水平进行测度，在此基础上通过聚类分析将西部商贸流通业的发展划分为三类区域，采用泰尔指数对地区差异进行测度和分解。结果表明：整体上，西部商贸流通业的发展水平依然较低，三类区域的地带间差异对西部商贸流通业地区差异的贡献比较大。

英文摘要：

Based on comprehensive reflection on development level and capacity of the commerce and trade circulation industry in west region, this paper constructs comprehensive evaluation indicator system including such four first grade indicators as devel- opment basis, contribution, status and growth capability of commerce and trade circulation industry. The sequential overall prin- cipal component analysis method is used to measure comprehensive level of commerce and trade development from 2005 to 2010 of twelve provinces and municipality in west region. On the basis of this analysis, the west region is divided into three sectors by cluster analysis and the regional difference is measured and decomposed by Theft index. The result shows that, as a whole, the development level of the commerce and trade circulation industry in west region is relatively low, in addition, the regional differ- ence among the three sectors has relatively big contribution to the difference of commerce and trade circulation industry in west re- glon