中文摘要：

以辽宁省100个区（市、县）为研究单元，以人均GDP和职工人均工资作为测度县域经济发展水平的代表性指标，运用差异系数和极化指数模型对2003--2015年辽宁省县域经济发展的差异和空间极化演变特征进行定量研究。结果表明：辽宁省县域经济发展的生产水平变化大于生活水平变化，生产水平的差异和空间极化呈减小趋势，生活水平的差异和极化呈微弱增大趋势；从分区看，辽宁省县域经济的差异表现为区内差异，空间极化现象减弱。通过地理加权回归模型分析发现，社会消费、固定资产投资和人口因素是主要影响因素。

英文摘要：

This paper made a quantitative comparison between the differences of county economic development and the evolution process of polar-ization in Liaoning Province from 2003 to 2015 with the model of difference coefficient and polarization index, using 100 counties as the research unitsand selecting the per capita GDP and the average wage for urban workers to measure the level of economic development.The results showed that thechange of production level of county - level economic development was greater than that of living standard. The difference of production level and spa-tial polarization were weakening, and the difference and polarization of living standard showed a slight increase. From the perspective of different re-gional zoning, the difference of county economy was manifested as regional difference, and spatial polarization was weakened. It was found that socialconsumption, fixed asset investment and population factor were the main influencing factors through the geography weighted regression model.