4ColJier,P. ,Gregory,A. Audit Commit- tee Effectiveness and the Audit Fee[J].The Eu- ropean Accounting Review , 1996, (2).
5O'Sullivan,N.Board Characteristics and Audit Pricing Post-Cadbury:A Research Note [J]. European Accounting Review, 1999, (8).
6Gul,F,A.,Tsuid,S.Free Cash Flow,Debt Monitoring,and Audit Pricing:Further Evidence on the Role of Director Equity Ownership [J]. Auditing:A Journal of Practice & Theory,2001, (20).
7Beasley,M,S.,Petroni K,R.Board In- dependence and Audit Firm Type[J].Auditing: A Journal of Practice & Theory,2001, (20).