区域开放程度与企业技术创新能力的关系研究——基于有向无环图的实证分析

Study on the Relationship Between Regional Openness and Enterprises Technological Innovation Capabilities Based on the Directed Acyclic Graph

基于现有研究忽略了区域对外开放程度与企业技术创新能力之间的同期因果关系问题的缺陷,本文使用了有向无环图分析方法来探讨二者之间的同期因果关系,并采用2001-2011年我国战略性新兴产业284家上市企业的面板数据进行了实证分析。结果表明：企业R＆D投资越多、R＆D波动性越小越有利于直接促进企业的创新产出;外方注册资本情况对企业创新产出具有直接的促进作用,并且还可通过对企业R＆D投资来间接地促进企业的创新产出;区域外商投资质量通过企业R＆D投资和R＆D波动性间接地抑制了企业的创新产出;而区域对外贸易情况则是通过企业R＆D波动性和外方注册资本情况来间接地影响企业创新产出。因此,企业应通过维持R＆D活动的稳定性来促进企业技术创新的产出,同时当地政府不应盲目过多的吸引FDI,而应重点吸引、鼓励外商投资者在本地建立R＆D部门,增强R＆D活动的溢出效应。

This purpose of this paper is to explore the corresponding period causality between the regional openness and enterprises＇ technological innovation capabilities（TICs） , based on the existing studies which ignore the corresponding period causality between the regional openness and enterprises＇ TICs. We use the directed acyclic graph to make an empirical analysis based on the panel data of the 284 listed of strategic emerging industries companies during the period of 2001 -2011 in China. The results shows that： enterprises R＆D funding investment in the strategic emerging industries is greater, R＆D volatility is lower, and the enterprises innovation output is much more; the regional foreign registered capital not only has a directly positive effect on local enterprises innovation output, but also an indirectly positive impact on the innovation output by the firms R＆D funding investment; while the quality of regional foreign investment by the enterprises R＆D funding investment and R＆D volatility has an indirectly negative impact on the innovation output; and also there is an indirect causality between the regional foreign dependence and the innovation output by the enterprises＇ R＆D volatility and the regional foreign registered capital. Therefore,the firm should keep the stability of R＆D activities, and meanwhile,the local government should not blindly attract an excess of FDI, but should encourage the foreign firm to established the department of R＆D in the local,in order to improve the spill of R＆D activities.