异质性、出口与中国企业技术创新

本文使用来自中国企业的大样本微观数据，运用Probit模型对影响企业创新的异质性特征从全要素生产率（TFP）因素进行了拓展，同时将所有制异质性作为“基础因子”，综合考察了多维度异质性特征、出口等对中国企业技术创新的影响。结果发现：(1)TFP因素对所有类型企业的创新倾向均具有显著的正向影响，即表现出明显的“创新自选择”效应；(2)出口参与因素显著提高了各类型企业的创新倾向，但出口密度因素对国有和民营企业的技术创新影响存在显著的倒U型关系，而对外资企业技术创新影响的非线性关系并不明显；(3)其他影响因素如企业规模、人力资本等异质性特征在不同类型企业的创新决策中表现各异。

HETEROGENEITY, EXPORT AND CHINESE FIRMS' TECHNICAL INNOVATION

This paper studied the determinant factors of firms’ technical innovation from total and sub-sample dimensions using Probit model based on micro data from China.It showed that: 1.TFP had significant positive effect on firms’ innovation for all firms,which was consistent with self-selection of higher TFP firms into innovating;2.export participation promoted all firms’ innovation,but export intensity showed inverted-U shape for state-owned and private firms while not obviously for foreign firms;3.firm size,human capital and other heterogeneity characteristics showed differently in different firm types.