Study on the employee stock ownership plan of mixed ownership enterprise 并列题名：Study on the employee stock ownership plan of mixed ownership enterprise Research on the choice of ownership structure of mixed ownership enterprises 并列题名：Research on the choice of ownership structure of mixed ownership enterprises Essential practice of employee stock ownership plan for pre-IPO science and innovation enterprises Study on the effect of employee stock ownership plans in Chinese listed companies Study on employee stock ownership system in China 并列题名：Study on the effect of employee stock ownership plans in Chinese listed companies Study on the effectiveness of state ownership in pricate sector enterprises