中文摘要：

公共政策如何寻找着力点以促进贸易增长是新形势下政策制定者和学术界共同关注的重大问题。基于2001—2009年中国科技部“科技型中小企业技术创新基金”企业名录与中国工业企业数据库的匹配数据,采用倾向得分匹配方法实证分析了创新补贴对企业出口扩展边际和集约边际的影响,研究发现：创新补贴对企业出口二元边际具有正向促进作用,使得企业出口集约边际增加13.3%,扩展边际增加21.2%。进一步研究发现,创新补贴对企业出口二元边际的影响存在异质性,创新补贴对高生产率、小规模、民营企业促进作用更大。

英文摘要：

Based on the matching data between Chinese Science and Technology Ministry of Science and Technology （SME） Technology Innovation Fund in 2001 and the database of Chinese industrial enterprises, the impact of innovation subsidy on the marginal and intensive marginal expansion of export is analyzed by trend score matching method. The results show that the innovation subsidy has a positive effect on the export margin of the enterprise, which increases the intensive margin of export by 13.3% and the extensive margin by 21.2%. Further research found that the impact of innovation subsidies on the export margin of enterprises is heterogeneity, which is more effective for stimulating high productivity, small-scale, private enterprises.