the empirical tests based on the M&A samples of listed companies in China an empirical study based on a-share listed companies in China 产业政策对企业并购行为的影响：基于中国上市公司并购事件的经验证据：the empirical tests based on the M&A samples of listed companies in China an empirical research on the listed companies in China empirical research based on listed companies in China Empirical study on earnings management of listed companies in China an empirical test based on the perspective of competency Comparative analysis on investment value of listed companies in China an empirical study based on the data of the listed companies of central enterprises Analysis on investment value of listed companies in China