6Bell, T B , W R Landsman, and D A Shackelford. 2001. Auditors' perceived business risk and audit fees: Analysis and evidence. Journal of Accounting Research 39 , No. 1(June) : 35 - 43.
7Simunic, D A. 1980. The pridng of audit services: Theory and evidence. Journal of Accountimg Research 18 : 161 - 190.
8Seetharaman, A , F A Gul, and S G Lynn. 2002. Litigation risk and audit fees: Evidence from UK firms cross- listed on US markets. Journal of Accounting and Economics 33:91 -115.
9Forker J J, Corporate governance and disclosure quality [J]. Accounting and Business Research, 1992 (22) : 111 - 124.
10Craswell A, Taylor S. Discretionary disclosure of reserves by oil and gas companies: an economic analysis [J]. Journal of Business Finance and Accounting, 1992(19):295 - 308.