中文摘要：

作为一种重要的非正式制度安排,连锁董事网络关系长期稳定嵌入于企业之中,成为企业获取外部资源和信息的重要来源。位于连锁董事网络中不同位置的企业获取和控制资源的能力所有差异,进而影响其创新行为。利用社会网络分析方法,以2008~2014年我国高科技上市公司为研究样本,从结构性嵌入的角度实证研究了我国高科技上市公司连锁董事网络位置对企业创新投入的影响,以及环境不确定性对二者关系的调节作用。研究发现,网络中心度以及结构洞的丰富程度均与企业创新投入显著正相关,表明位于连锁董事网络中心位置的企业能够利用其位置优势管理外部资源依赖,促进企业开展研发活动。研究尚发现,这种促进作用受到企业面临的环境不确定性的负向调节,即环境不确定性削弱了连锁董事网络中心位置对企业创新投入的积极作用。

英文摘要：

As an important informal institutional arrangement, the interlocking directorate network is embedded in enterprises, and it is an important source for enterprises to obtain external resources and information. Based on the method of social network analysis, this study uses the Chinese high-tech listed companies during the period 2008-2014 as research samples and empirically examines the effects of enterprise ~s position in interlocking directorate networks on innovation investment, from the perspective of structural embeddedness. This study finds that network centrality and structural holes are positively correlated with R＆D investment, which indicates that enterprises which are located in the center of interlocking directorate network and occupy the structure holes are more likely to use the location advantage to acquire and control more information and resources so as to promote the enterprises to actively carry out R＆D activities. It also verifies the positive impact of director network as an informal governance mechanism on enterprise innovation behavior. It further examines the effect of environmental uncertainty on the location advantage of the network, suggesting that environmental uncertainty negatively moderates the interlock-innovation relationship. In other words, envi- ronmental uncertainty will reduce the positive effects of central position in interlocks on enterprise innovation investment.