中文摘要：

利用1990—2007年的数据，以开放经济条件为出发点，对长江三角洲、珠江三角洲和环渤海地区三大区域城乡居民收入差距进行比较研究。计量分析显示，人均GDP、政府财政支出、人力资本、城市化水平均与三大区域城乡居民收入差距正相关，而且都是显著性相关。外商直接投资对环渤海区域和珠江三角洲的城乡居民收入差距有一定的影响，对长江三角洲则没有显著影响。增加人力资本投资水平，使教育资源向农村倾斜，调整财政支出的投向和结构，加快城市化进程，有助于缩小区域城乡居民收入差距。

英文摘要：

A comparative study is made on the income gap between urban -rural residents in the Pearl River Delta, Yangtze River Delta, and Bohai Costal Region by using data of 1999 to 2007 based on the open economy. Analysis shows that the per capita GDP, government financial expenditure, human capital and the urbanization level positively correlated with the income gap between urban- rural residents in the three regions with significant correlations. To narrow the income gap, it is necessary for us to increase the investment of human capital, pay more attention to the education resource of rural areas, adjust the investment and structure of financial expenditure, and quicken the urbanization process