技术进步、产业集聚、城市规模与城乡收入差距
Study on the relationship between technological progress, the income gap between urban and rural, industrial agglomeration, and the scale of the city

文章基于新经济地理学理论相关模型进行推导，得出了一个新的多元分析框架理论模型，得到了技术进步、产业集聚、城市规模与城乡收入差距四者之间内在关系的作用机理。随后，构建了技术进步、产业集聚、城市规模三者之间的面板联立方程实证模型(SEM)和技术进步、产业集聚、城市规模三者与城乡收入差距的面板最小二乘回归实证模型(OLS)。并基于Stata计量分析软件平台，以中国23个城市群的经验数据为样本，将中国城市群整体和东、中、西部三大地带分别进行实证检验，以比较其中的差异，得到的实证检验结果与理论模型推导结果基本一致。通过研究发现，就中国城市群而言，技术进步、产业集聚与城市规模三者之间相互促进，城市规模和产业集聚将缩小城乡收入差距，而技术进步将扩大城乡收入差距。
By constructing a new economic geography theory related to the premise of deduction, we deduce a new multivariate analysis framework of theory model, and get a inner relationship mechanism about technological progress, industrial agglomeration, urban scale and income gap between the urban and rural. Then, we build the technology progress, industrial agglomeration and urban scale empirical panel simultaneous equation model (SEM) and the least squares (OLS) regression empirical model of technological progress, industrial agglomeration, urban scale, and the income gap between urban and rural areas each other. And based on the Stata software of measurement, with the experience of China’s 23 large urban agglomerations data as sample, we respectively empirically test the whole of China urban agglomeration and the eastern, central and western four areas to compare the differences, and empirical test results are consistent with the results of the basic theory model. In terms of China’s urban agglomeration, we find that technological progress, industrial agglomeration and urban scale mutualy promote each other, and urban scale and industrial agglomeration will narrow the income gap between urban and rural areas, however, technological progress will expand the income gap between urban and rural areas.