中文摘要：

本文基于2000—2007年中国工业企业微观数据和海关贸易数据,采用倾向得分匹配与生存分析方法系统研究了中间品进口对企业生存的微观影响。研究发现中间品进口显著延长了企业的经营持续时间。进一步引入中间品质量差异性和贸易方向的研究表明,中间品进口对企业经营持续时间的正向作用与进口中间品的质量水平呈正比,并且中间产品进口对双向贸易企业生存持续期的影响大于单向贸易企业,对加工贸易企业生存持续期的影响大于一般贸易企业。基于中介效应模型的传导机制检验,认为＂成本节约效应＂和＂技术溢出效应＂是中间品进口促进企业市场存活的重要渠道。最后,引入行业差异化的检验结果显示,相比于异质性产品行业的企业,中间产品进口对同质性产品行业中企业生存的积极影响更大,而高质量的中间品进口和双向贸易模式可以进一步强化上述作用。

英文摘要：

Based on the firm- level micro data and highly disaggregated customs data from 2000 to 2007,this paper analyzes the effects of the intermediate input imports on Chinese firms ＇ survival with the method of propensity score matching（ PSM） and survival analysis. The results show that,intermediate input import is good for firms＇ survival on the whole. Taking the quality of intermediate input and trade direction into account,we find that only high quality intermediate input import benefit for firms ＇ survival significantly,while low quality intermediate input imports raises the risk rate of the firms exiting market. Also,firms＇ two way trade behavior increases survival time comparing with one way trade behavior,and processing trade increases survival time comparing with ordinary trade. Furthermore,the transmission mechanism test show that ＂ cost- saving effect＂ and ＂ technology spillover effect＂ are the two important channels for why intermediate input imports improve firms＇ survival. Lastly,we further introduce heterogeneous industries into our study,and finds that compared with homogenous industries, the heterogeneous industries make higher improvement to firms ＇survival. Also,the high quality of intermediate input and two- way trade mode can strengthen the above effect.