Research on the performance of Chinese agricultural listed companies 并列题名：Research on the performance of Chinese agricultural listed companies 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 information disclosure quality of listed companies Research on the debt financing structure of listed companies Research on the refinancing problems of Chinese B-share listed companies Investment and finance mechanism in agricultural listed companies Ownership，control and the performance of Chinese listed companies 并列题名：Research on the refinancing problems of Chinese B-share listed companies