中心城市人才集聚的技术多样化效应研究

The research on technological diversification effect of talent aggregation in central cities

基于2003—2020年中心城市的数据,考察中心城市人才集聚对技术多样化的影响。研究发现,人才集聚显著推动了中心城市技术多样化发展,该结论在经过稳健性测试和内生性问题解决后仍然成立。作用机制检验结果表明,人才集聚通过提高技术创新效率和促进知识溢出推动了中心城市技术多样化发展。进一步分析表明,人才集聚不仅能够增强相关技术多样化水平,还可以推动无关技术多样化发展;人才集聚对区域性和地方性中心城市的促进作用高于全国性中心城市;随着时间的推移,人才集聚对技术多样化水平的影响不断减弱,即存在有限时间边界;城市经济规模、创新政策激励以及户籍制度改革,均会强化人才集聚对中心城市技术多样化发展的正向影响。经济后果分析表明,人才集聚的技术多样化效应会增强中心城市科技创新功能,推动区域创新发展。研究结论对于增强中心城市人才集聚效应,促进技术创新提质增效具有一定启示意义。

Based on the data of central cities from 2003 to 2020,this paper examines the technological diversification effect of talent agglomeration in central cities.It is found that talent agglomeration significantly promotes the development of technological diversification in central cities,and the conclusion still holds after the robustness test and endogeneity problemsbeing solved.The results of the mechanism of action test indicate that talent agglomeration promotes the development of technological diversification in central cities by improving the efficiency of technological innovation and facilitating knowledge spillovers.Further analysis shows that talent agglomeration not only promotes relevant technological diversification,but also enhances the level of unrelated technological diversification;talent agglomeration promotes regional and local central cities more than national central cities;the effect of talent agglomeration on the level of technological diversification decreases over time,i.e.,there exists a finite time boundary.The size of the city's economy,the incentives of innovation policies,and the reform of the household registration system all strengthenthe positive impact of talent agglomeration on the development of technological diversification in central cities.The analysis of economic consequences shows that the technological diversification effect of talent agglomeration enhances the science and technology innovation function of central cities and promotes regional innovation development.The findings of the study are of great significance for enhancing the talent agglomeration effect in central cities and promoting the quality and efficiency of technological innovation.