生产性服务业集聚与城市绿色全要素生产率:数字经济下的新机制与新证据

The Agglomeration of Producer Services and Urban Green Total Factor Productivity:New Mechanism and Evidence in the Digital Economy

数字经济时代,生产性服务业集聚如何驱动城市绿色全要素生产率提升?在分析相关影响机理的基础上,使用2012—2019年中国281个城市数据进行实证检验,并探讨其间接路径和空间溢出效应。结果显示:数字经济下的生产性服务业集聚更有利于城市绿色全要素生产率提升,但城市区位、城市发展阶段、产业集聚模式和行业类型均会使上述影响产生差异性效果;机制检验表明,数字经济下生产性服务业集聚通过影响城市创业活跃度和资本要素流动进而影响城市绿色全要素生产率;进一步分析表明,数字经济下的生产性服务业集聚对周边城市绿色全要素生产率具有显著的空间溢出效应。因此,应把握好数字经济发展机遇,通过生产性服务业集聚来更强有力地提升城市绿色全要素生产率。

In the era of digital economy,how can the agglomeration of producer services drive the improvement of urban green total factor productivity?Based on the analysis of relevant impact mechanisms,this paper uses the data from 2012 to 2019 of 281 cities in China to make an empirical test,and further explores its indirect paths and spatial spillover effect.The results show that the agglomeration of producer services in the digital economy is more conducive to promoting the improvement of urban green total factor productivity.However,the heterogeneity analysis finds that urban location,urban development stage,industrial agglomeration mode and industry type can make the above impact have different effects.The mechanism test shows that the agglomeration of producer services in the digital economy can affect urban green total factor productivity through urban entrepreneurial activity and capital factor flow.After considering the spatial factors,the agglomeration of producer services in the digital economy has significant spatial spillover effects on the green total factor productivity of the surrounding cities.Therefore,it is necessary for the agglomeration of producer services to seize the opportunities of digital economy development and to improve the urban green total factor productivity more powerfully.