摘要
本文基于中国专利数据库、工业企业数据库和海关数据库,利用企业的专利数量、种类和被引用数描绘中国企业创新的数量与质量,考察进口贸易自由化对我国企业创新能力的影响。研究表明:进口贸易自由化总体上促进了我国企业创新的质与量;中间产品关税下降通过成本降低效应和技术溢出效应,显著地促进了中国企业的创新能力;最终品关税下降对企业创新的影响存在选择效应,抑制生产率水平较低以及行业竞争水平较高的企业的创新能力。
Using China SIPO(State Intellectual Property Office)patent data,ASIF and Chinese Custom Database,we construct the firm’s patent number,category and citation to depict the innovation outcomes of Chinese firms and investigate the effect of import liberalization on Chinese firms’innovation quality and quantity.We find that import trade liberalization improves the innovation outcomes of Chinese firms in general.Specifically,the intermediate liberalization has significantly promoted innovation of Chinese firms through cost reduction effect and technology spillover effect;The tariff reduction of final products doesn’t have a significant impact on the firms’innovation outcomes,but it has inhibited the innovation outcomes of firms in highly competitive industries and firms with lower productivity.
作者
何欢浪
蔡琦晟
章韬
HUANLANG HE;TAO ZHANG;QISHENG CAI(Shanghai University of International Business and Economics;College of Business,Shanghai University of Finance and Economics,Shanghai,200433,China)
出处
《经济学（季刊）》
CSSCI
北大核心
2021年第2期597-616,共20页
China Economic Quarterly
基金
国家自然科学基金面上项目(71673177)
国家社会科学基金重大项目(18ZDA069)
国家社会科学基金一般项目(20BJL044)
上海市哲学社会科学规划课题一般项目(2018BJB015)
上海市教育发展基金会和上海市教育委员会“曙光计划”项目(18SG51)
上海市教委科研创新重大项目(2019-01-07-00-07-E00031)支持
关键词
进口贸易自由化
企业创新
专利质量
import liberalization
innovation outcomes
patent quality
