This study examines the impact of audit opinions on the cost of debt based on accounting education and knowledge management theory. The empirical results of whole sample regression show that audit opinions are negatively correlated with the cost of debt and financial marketization weakens the effect of audit opinions on debt pricing. The subsample regression results of audit opinions indicate that financial marketization is negatively correlated with the cost of debt only in companies with modified audit opinions. This implies that audit opinions play a more important role in debt pricing compared to the financial marketization of companies’ localities.
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