一、理论介绍(一)股权结构理论股权结构可以从两个维度考察:一个维度是主体性质,即考察持股主体(股东)的类型及其构成与持股比例状况;另一个维度是量的分布,即考察公司股份分布的集中或分散状况。简言之,股权结构就是由不同性质的股东及其持股比例构成的企业股权的分布状态。股权结构的优化应该以公司治理效率的提升为导向。近年来,股权结构理论逐步发展,为现实中股权结构的选择提供了更多的模式。但无论是改善股权结构中的主体性 I. Theory (I) Ownership Structure Theory Ownership structure can be investigated from two dimensions: one dimension is the nature of the main body, that is, examine the type of shareholders (shareholders) and their composition and ownership ratio; the other dimension is the amount of Distribution, that is, examine the concentration or dispersion of the company’s share distribution. In short, the shareholding structure is the distribution of the ownership of an enterprise composed of shareholders of different nature and their shareholding ratio. The optimization of ownership structure should be guided by the improvement of corporate governance efficiency. In recent years, the theory of ownership structure has been gradually developed, providing more models for the choice of ownership structure in reality. However, it does not only improve the subjectivity in the ownership structure