中文摘要：

以天津市为例,通过实证分析得出外部性理论的三大集聚因子显著地影响生产性服务业与制造业在空间上的协同集聚的结论。其中,中间投入品的共享和知识溢出效应吸引两大产业部门在空间上邻近分布,而劳动力池的共享并没有发挥正向的促进作用,反而有显著的挤出效应。另外,资本密集型和技术密集型制造业部门趋向于与生产性服务业部门在空间上邻近分布,而劳动密集型和能源依赖型制造业部门在空间布局时主要受劳动力市场、能源等因素影响,对邻近生产性服务业部门布局的必要性较弱。

英文摘要：

this essay takes Tianjin for example to verify the impact of the externality on the Co - agglomeration between producer services and manufacturing. The results turn out that intermediate inputs sharing and knowledge spillovers promote adjacent distribution between producer services and manufacturing, but the labor pool plays the crowding - out effects in the co - agglomeration between two industrial sectors. In addition, capital- intensive and technology- intensive manufacturing sectors tend to near producer services sector, while the spatial distribution of labor - intensive and energy - dependent manufacturing sectors are mainly affected by labor force or energy, and the necessity of close to producer services sector is weak.