摘要
将中间品贸易自由化、进口多样性与企业创新纳入统一分析框架,从理论上阐释了中间品贸易自由化、进口多样性对企业创新的影响,随后利用2003—2007年中国工业企业和海关的匹配数据,采用Heckman两步法进行实证检验。结果表明,中间品关税下降促进了企业创新,尤其是在进口多样性水平提高后,对企业创新的激励作用增强。进一步,我们按照企业所有制类型、地区分布、贸易方式和进口来源国划分样本考虑异质性,发现中间品关税下降对外资企业和一般贸易进口企业影响更大,进口多样性水平的提高对国有企业和中西部地区企业创新具有重要意义。为我国深入推进中间品贸易自由化,实施进口多元化战略,促进制造业企业创新提供了启示。
This article incorporates trade liberalization of intermediate inputs,import diversity and enterprise innovation into a unified analytical framework,which theoretically explains the influence of trade liberalization of intermediate inputs and import diversity on the innovation of enterprise. Then we employ Heckman two-step method to make empirical tests,using the matching data of Chinese industrial enterprise and the customs database during 2003—2007. The results show that the decline of tariffs of intermediate inputs promotes the innovation of enterprises,especially when the level of import diversity is increased. Furthermore,we consider the heterogeneity of ownership types,regional distribution,trade patterns and countries of origin,and find that the decline of tariffs on intermediate inputs has greater impact on foreign-funded enterprises and general trade importers,and the improvement of import diversity is of great significance for enterprise innovation of stateowned enterprises and enterprises in central and western regions. This article provides policy implications for China to further trade liberalization of intermediate inputs,implement the strategy of import diversification and promote the innovation of manufacturing enterprises.
作者
耿晔强
郑超群
GENG Yeqiang;ZHENG Chaoqun(School of Economics and Management, Shanxi University, Taiyuan 030006, Chin)
出处
《产业经济研究》
CSSCI
北大核心
2018年第2期39-52,共14页
Industrial Economics Research
基金
国家社会科学基金项目(12CJY076)
关键词
中间品贸易自由化
进口多样性
企业创新
Heckman两步法
企业异质性
trade liberalization of intermediate inputs
import diversity
enterprise innovation
Heckman two-step method
enterprise heterogeneity
