中文摘要：

对独立董事的认识不能局限于货币收益和家族关系，影响其行为的两个主要因素是：声誉和社会关系。通过我国中小板2007—2010年面板数据实证发现：1）独立董事与大股东的社会关系会促使独立董事被俘获；2）声誉会促进独立董事的忠诚化；3）声誉会降低社会关系对独立董事的俘获程度，声誉足够高时甚至会出现独立董事反向俘获大股东的现象。因此，独立董事的制度构建和选聘，要充分考虑其社会因素，减少关系董事，增加高声誉董事。

英文摘要：

The understanding of independent directors can not be limited to monetary gains and family relationships, and there are two main factors affecting their behavior： reputation and social relationships. By using China＇s listed companies in small and medium enter- prise board from 2007 to 2010, this paper demonstrates that： 1 ） The social relationships between independent directors and large shareholders will lead to the capture of independent directors; 2） Reputation will promote the loyalty of independent directors; 3） Rep- utation will reduce the degree of capture, and independent directors will capture large shareholders when the reputation is high enough. Therefore, we should give full consideration to directors＇ social factors, reduce the relationships between directors and large shareholde- rs, and increase the reputation of directors.