数字产业与制造业协同集聚对企业绿色创新的影响研究

Research on the Impact of Collaborative Agglomeration of Digital Industry and Manufacturing Industry on Green Innovation of Enterprises

基于马歇尔集聚经济理论,依据中国工业企业数据和城市面板数据,运用固定效应模型,考量数字产业与制造业协同集聚对企业绿色创新的影响。结果显示,数字产业与制造业协同集聚通过人力资本外部性、知识溢出效应机制促进企业绿色创新,但规模经济效应机制不成立,且该结果在更换核心变量指标、考虑极端值、替换固定效应及内生性问题后依然稳健。鉴于此,应因地施策,加快推动区域内数字产业与制造业协同集聚,提升软环境建设水平,促进企业绿色化发展。

Based on Marshall's theory of agglomeration economy,combining the E-G index method and China's industrial enterprise data and urban panel data to measure the indicators of collaborative agglomeration of digital industry and manufacturing industry,and using the number of green patents of enterprises to characterize the level of green innovation of enterprises,and applying the fixed effect model to consider the impact of collaborative agglomeration of digital industry and manufacturing industry on the green innovation of enterprises,we find that collaborative agglomeration of digital industry and manufacturing industry can promote the green innovation of enterprises through the mechanisms of human capital externalities,knowledge spillover effect mechanism to promote enterprise green innovation,but the mechanism of economies of scale effect does not hold,and the result is still robust after replacing the core variable indicators,considering the extreme values,replacing the fixed effects and endogeneity issues.In view of this,policy measures to promote the greening of enterprises are proposed.