本文利用国家统计局编制的中国工业企业数据,基于投资强度和专利制度的双重视角,研究了研发投资对于企业业绩如何产生有效影响的重要问题,结果发现:(1)研发投资与企业业绩之间呈现出显著的倒U型曲线关系,二者之间的关系曲线在企业拥有较高人力资本水平下变得更加明显;(2)企业对于自身创新成果的专利保护增强了研发投资对于企业业绩的正面影响;(3)当专利保护的制度环境较差时,研发投资对于企业业绩产生了负面影响,并且这种作用在非国有企业中更加明显。
Using Chinese industrial firm data from National Bureau of Statistics,this paper analyzes the influence of RD investment on firm performance. The results show that( 1) RD investment has an inverted U- shaped influence on firm performance,and this relationship is deeper in firms with high level of human capital;( 2) patent application and authorization strengthen the positive role of RD investment on firm performance;( 3) when institution environment becomes weaker,RD investment is harmful to firm performance,and this effect is more pronounced in non- state- owned firms.