进口竞争与中国制造业企业产品创新研究

A Study of Relationship between Import Competition and Product Innovation of Chinese Manufacturing Enterprises

笔者对2005年~2007年中国制造业企业数据库、WTO关税在线分析数据库和联合国UNcomtrade数据库进行匹配,基于熊彼特创新理论探索进口竞争和中国制造业企业产品创新之间的关系。研究结果表明:进口竞争和中国制造业企业产品创新之间存在倒"U"型关系;然后,本文使用替代变量和工具变量检验证明该研究结果稳健;最后,笔者在分类回归中考虑到制造业企业全球化战略和所处地理区域因素,进一步发现进口竞争对这些企业产品创新影响存在较大差异,并给与相应解释。

Based on the micro-level panel-data from 2005-2007 and Schumpeter's innovation theories,this paper investigates the relationship between import competition and product innovation of Chinese manufacturing enterprises. This paper finds that:( 1) there is an inverted 'U'-shaped relationship between import competition and product innovation in Chinese manufacturing enterprises;( 2) by using different substitution variables and instrumental variables,it is found that the statistical results are robust;( 3) Chinese manufacturing enterprises with different international strategies and regional factors display different relationships with import competition,and the paper gives reasonable explanations correspondingly.