基于城市视角下的生产性服务业与制造业双重集聚研究

文章通过理论分析得出制造业和生产性服务业在城市内集聚产生的双重集聚效应的理论假说，通过实证分析从城市空间和价值链视角下研究双重集聚效应形成的内在机制。在验证理论假说的基础上得到如下结论：在保持其他变量不变的情况下，城市中存在一个均衡的土地租金，使得双重效应的互补效应达到最大；城市规模有利于双重集聚效应的提高；区域中的中心城市对其他城市的双重集聚效应有一定的辐射作用，经济距离越短辐射作用越大。为了进一步分析双重经济效应，文章基于不同规模城市的视角研究双重集聚效应对劳动生产率的影响，研究发现双重集聚效应对劳动生产率有“倒U”型的促进作用。

The Dual Agglomeration Study of Producer Service Industry and Manufacturing Industry from City Perspective

Through theoretical analysis, the theoretical hypothesis that the agglomeration of producer service industry and manufacturing industry in city brings dual effects was verified. Through empirical analysis, the mechanism of the dual effects was studied from the perspectives of city space and value chain. The result shows that keeping other variables constant, a balanced land rent appears in the city, leading the complementary effect of the dual agglomeration to the maximum. The dual agglomeration is proportional to the city scale, and the key city in the region has radiation effect on other cities’ dual agglomeration effects. The shorter the economic distance, the stronger the radiation effect. To analyze the dual economic effect, the influence of the dual agglomeration effect on labor productivity was studied under different city scales. The inverse U type shows the relationship of the dual agglomeration effect and labor productivity．