中文摘要：

我国各地区不同服务部门的分工是有区域性特征和差异性的。以对称显示性比较优势指数代替显示性比较优势指数,分析1997年与2008年我国31个省、自治区、直辖市各服务部门的统计指标和截面数据回归,以探讨不同服务部门在我国不同地区比较优势变动情况;并引入马尔可夫转移矩阵分析1997年与2008年我国不同服务部门地区比较优势程度的分布,证明比较优势会随时间推移而发生转移,但不同部门、不同比较优势程度的地区其转移概率存在差异。

英文摘要：

This paper calculates the comparative advantage of different service sectors in different region to analyze the regional characteristic and difference.With the index of revealed symmetric comparative advantage and Markov transition matrix,it discusses the change of comparative advantage and the distribution of comparative advantage in service sectors in 31 provinces in the year of 1997 and 2006.The result shows that comparative advantage has transferred during the research period,but there still exists difference between the probabilities of transferring.