本文通过检定公司股权结构的内外生双重属性以及探索公司股权制衡的影响作用,研究了我国上市公司控股股东自利行为的选择与股权制衡之间的关系。站在股权结构外生性的角度,股权制衡能够制约控股股东与其控制上市公司之间的关联交易以及侵占型关联交易行为,但无法制约上市公司的派现行为,主要是因为公司中小股东把关联交易而不把派现视为控股股东的自利行为;站在股权结构内生性的角度,股权制衡受到控股股东的自利行为的影响,表现为关联交易使得中小股东对控股股东的制衡作用增强,但上市公司派现行为降低了这一制衡作用,而且在考虑股权结构内生性的情况下,股权制衡度对控股股东自利行为的制约作用减弱甚至消失。
From testing the exogeneity and endogeneity of corporate ownership structures,and exploring the cause of corporate balance mechanisms,this paper studies the relationship between controlling shareholders'self-interest behaviors and corporate balance mechanisms. From the exogenous perspective,RPTs and ERPTs can be restricted by shareholders'balance mechanisms,but corporate dividend distribution behavior can't be restricted,because minority shareholders perceive RPTs and ERPTs rather than dividend distribution as controlling shareholders'self -interest behaviors. From the endogenous perspective,controlling shareholders'self-interest behaviors are the cause of corporate balance mechanisms,because the balance mechanisms are enhanced by RPTs behavior,but weakened by dividend distribution behavior. Importantly,the restrictive effect of corporate balance mechanisms on shareholders' self-interest behaviors fades away in consideration of the endogeneity of ownership structures.