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Stock market reaction to regulatory investigation announcements

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  • Xi Wu
  • Junsheng Zhang

Abstract

Prior event studies have examined investor wealth losses due to corporate misconduct in China’s capital markets, using the regulator’s formal sanction announcement as the relevant event. However, an important and earlier event (namely, the regulatory investigation announcement) has been overlooked. We find that the market reaction is a decrease of 2% around the sanction event (which is consistent with prior literature), while it reaches a decrease of about 6% around the investigation event, suggesting that focusing on the sanction event alone will substantially underestimate investors’ wealth losses. In exploring the cross-sectional variations of investor reaction to the investigation announcement event, we find that a larger magnitude of prior-year earnings management is significantly associated with more negative abnormal returns, which suggests that investors may use prior financial reporting quality in making decisions when faced with insufficient information. The implication of our evidence for civil lawsuits against corporate misrepresentation in China is also discussed.

Suggested Citation

  • Xi Wu & Junsheng Zhang, 2014. "Stock market reaction to regulatory investigation announcements," China Journal of Accounting Studies, Taylor & Francis Journals, vol. 2(1), pages 37-52, January.
    • Handle: RePEc:taf:rcjaxx:v:2:y:2014:i:1:p:37-52
    DOI: 10.1080/21697221.2014.891069
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    Cited by:

    1. Lennox, Clive & Wang, Chunfei & Wu, Xi, 2023. "Delegated leadership at public accounting firms," Journal of Accounting and Economics, Elsevier, vol. 76(1).
    2. Laure de Batz & Evžen Kočenda, 2024. "Financial crime and punishment: A meta‐analysis," Journal of Economic Surveys, Wiley Blackwell, vol. 38(4), pages 1338-1398, September.
    3. Li, Xuelian & Dong, Liang & Kot, Hung Wan & Liu, Ming, 2024. "Regulatory investigations, media coverage, and audit opinions," Journal of International Accounting, Auditing and Taxation, Elsevier, vol. 54(C).

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