可达性对企业生产率的影响研究——基于市场环境的视角

Research on the Impact of Accessibility on Enterprise Productivity:From the Perspective of Market Environment

本文基于2003—2012年中国工业企业微观数据,使用中介效应模型验证了可达性对企业效率的影响及作用机制。结果表明:首先,企业在空间范围可达性的优化促进了企业要素生产率提升,相较于企业在城市内的可达性,城市间可达性对企业效率的促进作用更大;其次,可达性通过影响市场环境,强化了产品市场竞争和降低要素市场扭曲,提高了企业生产率,其中产品市场竞争发挥的中介作用相对较大;最后,通过行业异质性分析,可达性对运输成本敏感性强的企业效率的影响程度大,且可达性对其企业效率的直接影响大于通过市场环境对企业效率的间接影响。

Based on the micro data of Chinese industrial enterprises from 2003 to 2012,this paper uses the intermediary effect model to verify the influence of accessibility on enterprise efficiency and its mechanism.Results show that:firstly,the optimization of spatial accessibility can improve factor productivity for the enterprise.Compared with the intra-city accessibility,inter-city accessibility has a more significant promotion effect on the enterprise’s efficiency.Secondly,by influencing the market environment,accessibility strengthens product market competition,reduces factor market distortion,and improves enterprise productivity,among which product market competition plays a relatively bigger intermediary role.Finally,through the analysis of industry heterogeneity,accessibility has a greater impact on the efficiency of enterprises which are more sensitive to transport costs,with the direct impact of accessibility on the efficiency much greater than the indirect impact of market environment.