Research on M&A performance of Chinese listed companies 并列题名：Research on M&A performance of Chinese listed companies Research on the performance of Chinese agricultural listed companies Research on risk information disclosure of Chinese listed companies Ownership，control and the performance of Chinese listed companies 并列题名：Research on the performance of Chinese agricultural listed companies Research on debt maturity structure of Chinese listed companies Research on environmental performance evaluation of listed companies Research report on ESG of Chinese listed companies Research report on esg of Chinese listed companies