首页|网络安全治理与股价崩盘风险——基于上市公司年报文本分析的证据

网络安全治理与股价崩盘风险——基于上市公司年报文本分析的证据

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网络安全治理是维护国家数据安全和保障金融体系稳定运行的必要措施.本文基于2006~2019年中国A股上市公司数据,使用深度学习方法分析上市公司年报文本,构建了企业网络安全治理指标体系,研究企业网络安全治理对其股价崩盘风险的影响.实证分析结果表明,上市公司重视网络安全治理可以显著降低股价崩盘风险.该结论在更换解释变量、增加额外控制变量和以《中华人民共和国网络安全法》颁布作为准自然实验等稳健性检验后仍然成立.机制研究发现,企业加强网络安全治理显著降低了外界的信息不对称、提高了企业声誉,进而降低了股价崩盘风险.进一步研究发现,国有企业和规模较大、成长性较好、有形资产比例较低的公司更重视网络安全治理.本文结论为企业网络安全治理对金融风险的影响提供了经验证据,为企业网络安全治理相关政策制定提供了建议参考.
Governance of Cybersecurity and Stock Price Crash Risk:Evidence from Textual Analysis of Chinese Listed Firms'Annual Reports
The issue of cybersecurity governance has gained wide attention from government decision-making de-partments and academia.This paper focuses on the cybersecurity governance of enterprises in capital markets and its re-lationship with financial risk.By employing deep learning methods to analyze the text of annual reports of listed compa-nies,this study constructs indicators for enterprise cybersecurity governance.Through empirical research,it reveals the relationship and mechanism between cybersecurity governance and stock price crash risk.The study finds that cybersecu-rity governance can significantly reduce stock price crash risk,and this conclusion remains robust even after conducting sensitivity tests by changing explanatory variables,adding control variables,and treating the promulgation of"Cyberse-curity Law"as a quasi-natural experiment.By reducing information asymmetry and increasing corporate social responsi-bility,enterprise cybersecurity governance lowers stock price crash risk.State-owned enterprises,larger firms,those with higher growth potential,and those with lower proportions of tangible assets are more likely to prioritize cybersecurity governance.The findings of this paper provide empirical evidence on the impact of enterprise cybersecurity governance on financial risk and offer policy recommendations for the development of relevant policies on enterprise cybersecurity governance.

Stock Price Crash RiskCybersecurity GovernanceTextual AnalysisCorporate Social Responsibility

王辉、何冬昕、陈旭、姜富伟

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中央财经大学金融学院

中国财政科学研究院金融研究中心

股价崩盘风险 网络安全治理 文本分析 信息不对称 企业声誉

教育部哲学社会科学研究重大课题攻关项目国家自然科学基金国家社会科学基金重大项目

22JZD0117227316522&ZD063

2024

金融评论
中国社会科学院金融研究所

金融评论

CSSCICHSSCD北大核心
影响因子:1.304
ISSN:1674-7690
年,卷(期):2024.16(1)
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