企业规模对专利产出影响的实证分析——基于1998—2010年上市公司经验证据

Empirical Analysis on Influence of Firm Size on Patent Output:Based on Empirical Evidence of Listed Companies from 1998 to 2010

使用1998—2010年中国A股上市公司的年度数据,研究了企业规模对专利产出和专利密度的影响。结果表明:发明专利和实用新型专利与企业规模之间存在U型关系,外观设计专利与公司规模呈倒U型关系;三类专利的专利密度都与企业规模之间存在U型关系;企业的知识存量、成立时间、财务杠杆、所有制类型等企业内部因素以及市场集中度、企业所处区域等外部环境因素都对企业的专利产出有显著影响。据此提出企业创新发展路径假说。

Using the annual data of A-share listed companies in China from 1998 to 2010, this paper investigates the influence of firm size on pa- tent output and patent density. The result shows as follows ： invention and utility-model patents have U-shape relationship with firm size, but for design patent,the relation exhibits inverted U-shape,there is U-shape relationship between patent densities of three kinds of patent, and firm size; enterprise＇s internal factors such as knowledge stock, established time, financial leverage, ownership pattern and external factors such as market concentration ratio and the area in which enterprise stated, all have significant impacts on patent output. Based on these findings,it puts forward the hypothesis of innovation development path of enterprise.