As an essential component of China's national supervision system, finance and accounting supervision plays an important role in regulating financial order, promoting economic development, and maintaining social stability. This study selects the special action of finance and accounting supervision as a quasi-natural experiment and conducts a difference-in-differences estimation to alleviates the problem of endogeneity. Using a sample of A-share listed firms from 2007 to 2013, this study examines the effect of finance and accounting supervision on stock price crash risk in the context of China. Our results indicate that firms subject to finance and accounting supervision are less likely to suffer a stock price crash. We explore the underlying mechanism and find that finance and accounting supervision mitigates firms' information asymmetry, thereby reducing future stock price crash risk. We also find that the negative effect of finance and accounting supervision on stock price crash risk is more pronounced for highly financialized firms, firms with larger management shareholding, and firms with poorer stockholder checks and balances. This study has significance for enriching research on the factors influencing stock price crash risk and assessing the effectiveness of finance and accounting supervision in the capital market.
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