中文摘要：

后发国家企业通过产品出口嵌入跨国公司主导的全球创新网络,出口中的技术学习对企业创新能力提升至关重要,伴随企业出口广度和出口深度的逐步加大,这种学习效应会发生哪些变化呢？通过从出口深度与出口广度2个维度研究不同类型企业的出口中学习效应,阐述企业出口活动与创新能力成长之间的关系,结果表明：（1）总体来看,出口广度而非出口深度对企业创新能力具有显著的促进作用：（2）从企业性质看,出口广度对国有及集体企业和私营企业均有正向影响,而出口深度只对私营企业创新能力有显著的促进作用：（3）从行业性质看,出口广度主要对非高技术行业的企业创新能力影响显著,而出口深度对高技术行业企业创新能力有积极的促进作用。

英文摘要：

Enterprises in emerging countries are embedding into global innovation network by exporting, and technological learning by exporting is becoming crucial to enterprises＇ innovation capability. With the increasing of Chinese enterprises＇ export breadth and export depth, what changes would happen to the ＇learning by exporting＇ effect？ Examining the relationship between export and firm innovation capability from two dimensions, the export breadth and export depth, the results show that：（1） On the whole, the export breadth but not the export depth is a critical determinant of enterprises＇ innovation capability.（2） The export breadth has significant positive effects on both State-owned and collective enterprises and private enterprises, while export depth only affects private enterprises.（3） The high-technology enterprises mainly benefit from the export depth, while non-high-technology enterprises benefit from the export breadth.