Investment Decisions Of The Independent Audit Opinion Of The Listed Companies In China Usefulness

Independent audit opinions of listed firms are not only verification of the financial statements, but also supply important referrence on invest decision ,what' s more, they have relation with listed firms and securities develop healthily. We begin with expatiating research background, study present status of inside and outside the country, have designed research frame and methods. Then through discussing information theory, invest decision theory and benefit correlation theory as study foundation, offer potent support to research on independent audit opinion utility. We adopt excess earnings and linear regression analysis methods, create stepwise majorized models, proceed independent audit opinions' information content empirical study of listed firms in our country during the research years, discuss the forecast value based on correlation test of increment explanation power, and obtain some apocalypses. The study can supply definite empirical evidence to integral hold the audit opinions' securities market efficiency, and to find out the decision value; can told all the investors how to catch stock market dynamic exquisitely, use market information to predict market development trends, realize the audit opinions' decision value, provide some correlative advice for securities supervisor department to build the audit system, improve the securities and audit market environment, in order to increase the audit opinions' decision serviceability.