The relationship between ownership structure and corporate performance has been the subject of intense research in corporate governance. It is valuable for promoting reform of the state-owned companies and the qualities of the listed companies' governance and performance. Based on the data of 583 companies listed on the Shanghai stock market over the period 2002 through 2005, we investigate the relationship between ownership concentration and corporate performance. Results show:1. Corporate performance is significant "U" related with the ownership concentration.2. There is a significant "inverse U" relation between the balance of power and corporate performance. The balance of the power can't be too big. There should be a proper balance of power to make the corporate performance best. The share holding level of non-dominating large shareholders is positively related to corporate performance.3. There are different correlation between ownership concentration and corporate performance because of the different industries. |