Taking accounting earnings quality as the index of investor protection,the paper uses unbalance panel date research method,the effect of institutional ownership to investor protection is tested with the data of companies listed in Shanghai Stock Exchange and Shenzhen Stock Exchange from 2003-2005.

An Empirical Research of Correlation Value of Accounting Earnings and Cash Flows——Evidences from Shanghai & Shenzhen Stock Markets;

An Empirical Study of Accounting Earnings Conservatism of Listed Companies in China;

Size and Book-to-Market Factors in Earnings:Evidence from the Chinese Listed Companies;

In this paper, by sampling A - share firms listed in Shanghai and Shenzhen Stock Exchanges from 1998 to 2002, the author examines the impact on next year s earnings and next two years stock returns measured by accruals as a standard of earnings quality.

The paper expounds the difference between earnings and cash flow,and put for ward the writer s own view:We should use earnings as primary,use cash flow as necessary supplement when we evaluate a corporation s performance.

Among numerous financial information revealed openly by the listed companies,most of the financial indexes that the investors pay the greatest attention to are close with the accounting surplus.

The Influences of Earnings Quality on the Usefulness of Accounting Information in Pay Contracts and Ownership Characteristics Interacting Effect;

Corporate Governance Quality and Earnings Quality:An Empirical Research Based on CCGI~(NK);

Study on Corporate Governance,Earnings Quality,and Top Executive Compensations;