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本文利用1998-2011年34个行业的面板数据,分析中国制造业的专利增长动因。计量结果发现,包括政策优惠条件、法制完善、技术机会、科技投入与国外竞争等,都对专利的增长有贡献。如果考虑到产业的异质性,政府资助增加了政策密集型行业专利数量,而外资和技术差距的作用不显著;外资进入对外资密集型行业专利数量具有抑制作用,而技术差距具有正向作用;技术差距较大的行业,国内研发投入影响不明显,外资流入影响明显;技术差距较低的行业,外资流入影响不明显,国内研发投入影响明显。
In this paper, panel data of 34 industries from 1998 to 2011 are used to analyze the motivation for patent growth in China’s manufacturing industry. Measurement results show that, including preferential policy conditions, the legal system, technological opportunities, investment in science and technology and foreign competition, all contribute to the growth of patents. If we take into account the heterogeneity of industries, government subsidies will increase the number of patents in policy-intensive industries, while the role of foreign capital and technology gaps will not be significant. Foreign investment will have a deterrent effect on the number of patents in foreign-funded industries, and the technology gap will have a positive effect In the industries with large technological differences, the impact of domestic R & D investment is not obvious and the inflow of foreign capital is obviously affected. In the industries with low technological difference, the inflow of foreign capital is not obvious, and the impact of domestic R & D investment is obvious.