中文摘要：

集群企业升级能为集群升级奠定微观基础,然而以往研究对集群企业升级途径和机制的关注相对不足。结合转型经济这一特定情境,从制度网络和公司创业的角度揭示集群企业升级的过程机制。以浙江省四个传统产业集群中的企业为调研对象,实证研究表明,公司创业对集群企业升级具有积极影响,而本地与超本地制度网络均有利于推进集群企业的公司创业。最后讨论了研究的理论意义和实际意义。

英文摘要：

The upgrading of clustered firms could lay the micro-foundation for cluster upgrading as a whole.Prior research,however,paid scant attention to the means and mechanisms by which clustered firms upgrade.In the context of transition economy,we reveal the underlying mechanism though which institutional network fuels clustered firm＇s corporate entrepreneurial activities and upgrading.Using data from firms within four industrial clustered in Zhejiang Province,the empirical analysis shows that corporate entrepreneurial activities has positive bearing on clustered firm＇s upgrading,and both local and ultra-local institutional networks have positive impacts on clustered firm＇s entrepreneurial activities.We conclude with discussions of theoretical contributions and managerial implications.