问询函、关键审计事项与股价同步性

Letters of Inquiry, Key Audit Matters and Stock Price Synchronicity

问询函与关键审计事项对于增强信息披露、减少信息不对称性具有重要意义。本文选取了2017-2020年沪深A股上市公司数据,探究问询函对股价同步性的影响,以及关键审计事项在该影响过程中所起到的作用。研究发现:问询函具有降低上市公司股价同步性的作用;在问询函影响股价同步性的过程中,关键审计事项存在部分中介效应。本文的结论验证了我国加强问询监管这一举措的有效性以及2016年财政部要求披露关键审计事项这一规定实施的必要性,同时拓展了有关关键审计事项作为中介变量产生的经济后果的研究。

Letters of inquiry and key audit matters are important to enhance information disclosure and reduce information asymmetry. Based on the data of A-share listed companies in Shanghai and Shenzhen stock markets from 2017 to 2020, this article explores the impacts of letters of inquiry on the stock price synchronicity and the role of key audit matters in this process. It shows that the letters of inquiry can reduce the stock price synchronicity of listed companies;in this process, the key audit matters play mediating effects to some extent. Its conclusions validate the effectiveness of strengthening regulation by the means of letters of inquiry and the necessity of the rule of disclosing key audit matters by the Ministry of Finance in 2016. It also enriches the research on the economic consequences brought about by key audit matters as mediators.