5.2. Multiple regression analysis
5.2.1. Corporate governance and audit fees
We now examine Model 1 using the 2007 and 2008 data. The results are presented in Table 6. The maximum
variance inflation factor (VIF) values are 2.06 and 2.11 in 2007 and 2008, respectively, which indicates
that multicollinearity is not a serious issue.8 The adjusted R2 is 0.7700 in 2007 and 0.7766 in 2008, which indicates
that the explanatory power of our model is high and in line with the level achieved in similar research
worldwide.9 The regression results show the coefficient of Gov to be 0.0772639 (significant at the 5% level,
two-sided) in 2007 and 0.0559151 (significant at the 10% level, one-sided) in 2008. These results confirm the
negative influence of corporate governance on audit fees. Further analysis using the 2008 results shows that
companies included in the Governance Sector enjoy a RMB64,46710 (or 5.44%) discount on audit fees over
their Non-governance Sector counterparts,11 thus supporting Hypothesis 1a.
5.2. Multiple regression analysis
5.2.1. Corporate governance and audit fees
We now examine Model 1 using the 2007 and 2008 data. The results are presented in Table 6. The maximum
variance inflation factor (VIF) values are 2.06 and 2.11 in 2007 and 2008, respectively, which indicates
that multicollinearity is not a serious issue.8 The adjusted R2 is 0.7700 in 2007 and 0.7766 in 2008, which indicates
that the explanatory power of our model is high and in line with the level achieved in similar research
worldwide.9 The regression results show the coefficient of Gov to be 0.0772639 (significant at the 5% level,
two-sided) in 2007 and 0.0559151 (significant at the 10% level, one-sided) in 2008. These results confirm the
negative influence of corporate governance on audit fees. Further analysis using the 2008 results shows that
companies included in the Governance Sector enjoy a RMB64,46710 (or 5.44%) discount on audit fees over
their Non-governance Sector counterparts,11 thus supporting Hypothesis 1a.
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