2Ashbaugh-Skaife, H., D. W. Collins, W. R. Kinney, and R. LaFond. 2009. The Effect of SOX Internal Control Defi- ciencies on Firm Risk and Cost of Equity. Journal of Accounting Research, 47 ( 1 ) : 1 - 43.
3Doyle, J. , W. Ge, and S. MeVay. 2007. Determinants of Weaknesses in Internal Control over Financial Reporting. Jour- nal of Accounting and Economics, 44 (1 -2) : 193 - 223.
4Ge, W. , and S. McVay. 2005. The Disclosure of Material Weaknesses in Internal Control after the Sarbanes -Oxley Act. Accounting Horizons, 19 (3) : 137 - 158.
