智慧城市建设与企业数字化转型:理论机制与实证检验

Smart City Construction and Enterprise Digital Transformation:Theoretical Mechanism and Empirical Test

随着数字经济的快速发展,智慧城市不仅成为未来城市发展的重要趋势,还为企业数字化转型提供了重要契机。基于2007—2020年A股上市企业数据,以智慧城市试点政策作为准自然实验,采用多期DID模型,考察智慧城市建设对企业数字化转型的影响效应与作用机制。研究发现:(1)智慧城市建设能显著促进企业数字化转型,这一结论在经过一系列稳健性检验后依然成立;(2)智慧城市建设主要通过缓解融资约束与提高技术创新两种机制促进企业数字化转型;(3)智慧城市建设对非国有企业、高技术行业企业、成长期与成熟期企业、东部地区企业数字化转型的促进作用更强。基于上述结论,提出积极推进智慧城市建设、加快数字技术创新、推动数字化产业发展、促进企业数字化转型、把握数字经济发展机遇的政策建议。

With the rapid development of digital economy,smart city has not only become an important trend of future urban development,but also provides an important opportunity for the digital transformation of enterprises.Based on the data of A-share listed enterprises from 2007 to 2020,this paper takes the smart city pilot policy as A quasi-natural experiment and adopts the multi-period DID model to investigate the impact and mechanism of smart city construction on the digital transformation of enterprises.The results show that:(1)Smart city construction can significantly promote the digital transformation of enterprises,and this conclusion is still valid after a series of robustness tests;(2)The construction of smart city mainly promotes the digital transformation of enterprises through two mechanisms:alleviating financing constraints and improving technological innovation;(3)Smart city construction plays a stronger role in promoting the digital transformation of non-state-owned enterprises,enterprises in high-tech industries,enterprises in growth and maturity stages,and enterprises in the eastern region.Based on the above conclusions,this paper puts forward policy suggestions to actively promote the construction of smart city,accelerate digital technology innovation,promote the development of digital industry,promote the digital transformation of enterprises,and grasp the development opportunities of digital economy.