长三角城市群电子信息制造业的空间集聚及生产绩效研究

以长三角城市群27个地级以上城市的电子信息制造业为研究对象，采用2004—2013年中国工业企业数据，利用EG集聚指数、核密度分析法、空间自相关和分位数回归模型，实证分析长三角电子信息制造业的空间集聚特征和及其发展绩效的影响因素。结果表明：长三角电子信息制造业呈现先集中后均衡的空间集聚，整体稳定在低集聚区间；长三角城市群电子信息制造业在相邻空间单位中具有空间正相关特点；集聚经济、政策支持等因素对不同企业绩效水平产生差异化影响。对于中低绩效企业而言，政策支持的促进效应大于集聚经济，对于高绩效企业而言，集聚经济的促进效应由于政策支持，内部规模经济对各绩效水平企业均呈促进效应。

Study on spatial agglomeration and performance of electronic information manufacturing in the Yangtze River Delta Urban Agglomeration

This paper takes electronic information manufacturing of 27 cities in the Yangtze River Delta urban agglomeration as research object. Based on data from Chinese industrial firms, it firstly analysis the patterns of spatial agglomeration of electronic information manufacturing firms through adopting EG agglomeration index, spatial auto-correlation, kernel density analysis method. Then, it exams the relationship between spatial agglomeration, governmental founding and other related factors and firms' performance by using quantile regression model. The results show that: electronic information manufacturing firms are centralized in 2004 and then relatively balanced distributed with overall stability in low-level agglomeration; electronic information manufacturing firms have positive spatial correlation in adjacent spatial units; spatial agglomeration, policy support have differentiated effects on the three levels of firms' performance. While the policy support plays a great promoting part in low and medium performance firms, the agglomeration economy does well in high-performance firms. Internal scale economy has a promotion effect on all performance level of electronic information manufacturing firms.