选取1985~2007年的时间序列数据,对23年间北京市居民的收入差距演变规律进行分析,并在对纵向数据分析基础上,综合运用基尼系数反映的收入差距相对水平,和城乡居民收入比较差距反映的比较水平两个指标,对北京市城乡居民收入差距的发展状态和趋势进行科学判断。研究认为,北京市居民收入差距变化大致经历“低收入公平型”^→“低收入不公平型”^→“高收入不公平型”的演进过程。进一步的计量模型分析结果揭示,第二、三产业就业人员占总就业人员的比重,城市化水平和二元结构系数三个变量对北京市城乡居民收入相对差距的影响是正向的,而政府财政支农比率对城乡收入差距的影响是负向的,进而探讨了缩小城乡收入差距的对策。

The object of this paper is to analyze urban-rural income inequality in Beijing.Selecting the time-series data of 1985-2007, the paper analyzes the evolution of urban-rural income inequality in Beijing.Based on the longitudinal data analysis, using two indicators, which are the Gini coefficient reflecting the relative level of income disparity, and the income gap between urban and rural residents, the paper gets some scientific judgments which reflect the state and trends of urban-rural income inequality in Beijing.In the 23 years, the difference between an average annual disposable income of urban residents in Beijing, and an average annual net income of rural residents expands gradually.Studies suggest that changes of urban-rural income inequality in Beijing experience the evolutionary process, which is " low-income-fair-type" ^→ "low-income-unfair type" ^→ " high-income-unfair type".Further analysis is based on the econometrics model, which contains eight indicators of four categories of variables, revealing that there are many elements cause the results of urban-rural income inequality in Beijing, in these elements, three variables impact positively on urban-rural income inequality in Beijing, which are the employment proportion in the secondary and tertiary industries to total employment, the level of urbanization and the dual structure coefficient, and the Government Financial support for agriculture impacts negatively on the urban-rural income inequality.Based on the study above, the paper gets the countermeasures and proposals.It is significant to study the evolution and major effect factor of urban-rural income inequality in Beijing, not only for Beijing itself, but also for the other cities.