进口对中国企业创新的影响研究

The Impact of Import on Innovation of Chinese Firms

基于微观企业数据,以专利数量衡量创新数量,用知识宽度法测算创新质量,实证检验进口对中国企业创新数量和创新质量的影响。研究发现:进口对企业创新质量和创新数量都有显著的促进作用,且对创新数量的促进作用更大。分行业看,进口对垄断性行业的企业创新质量的促进作用更强,而对竞争性行业的企业创新数量的促进作用更强。分所有制看,进口对国有企业和集体企业创新能力有较强的促进作用。进口对企业创新的影响受到进口品结构、进口来源国和企业技术水平的影响。

Based on the micro enterprise data,this paper measures the innovation quantity by patent quantity and the innovation quality by knowledge width method,and then empirically tests the impact of import on the innovation quantity and quality of Chinese enterprises.The results show that:import has a significant role in promoting the quality and quantity of innovation,and which is greater for the latter one.From the perspective of different industries,import has a stronger effect on the innovation quality of enterprises in monopoly industries,while it has a stronger effect on the innovation quantity of enterprises in competitive industries.From the perspective of ownership,import plays a stronger role in promoting the innovation ability of state-owned and collective enterprises.The impact of import on enterprise innovation will be affected by import structure,import source country and enterprise technology pool.