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控股股东股权质押、高管激励与股价波动

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为避免股权被平仓的风险,控股股东质押股权后应该有动机降低股价波动风险,现有文献对此虽有探讨,但结论并不一致,而且对具体机制的探讨也不清楚.本文从理论上分析企业控股股东股权质押与企业股价波动负相关关系及其具体机制与路径,并选取2007年到2021年的A股上市公司数据进行实证检验.研究发现:控股股东股权质押后,公司的股价波动确实显著降低;为了维持短期股价稳定,上市公司控股股东质押股权后,会增加公司高管的短期薪酬,无论是绝对数量还是相对比重;高管激励在控股股东股权质押与企业股价波动之间起着部分中介作用.进一步研究表明,控股股东进行股权质押对股价波动的平滑作用并不是通过提高公司业绩能力和盈余管理水平,降低信息不对称性和大股东掏空来实现的.异质性结果也说明了非国有控股的上市企业对控股股东进行股权质押的行为都更为敏感.本文探究了控股股东股权质押对股价波动的作用及其机理,从理论上对股价波动文献进行了补充,并为外部投资者、金融机构和政府部门提出相应建议,对提升上市公司的公司治理效率提供新的思路.
Controlling shareholder equity pledges,executive incentives and stock price volatility
In order to avoid the risk of being closed out,controlling shareholders should have an incentive to reduce the risk of share price volatility after pledging their equity,which has been explored in the existing literature but the conclusions are inconsistent and the specific mecha-nisms are unclear.This paper theoretically analyses the negative relationship between corporate controlling shareholder equity pledges and corporate share price volatility and its specific mech-anisms and paths,and selects A-share listed companies'data from 2007 to 2021 for empirical testing.It is found that:The share price volatility of a company does decrease significantly af-ter controlling shareholders'equity pledge;in order to maintain short-term share price stability,listed companies increase the short-term remuneration of company executives after controlling shareholders'equity pledge,both in terms of absolute quantity and relative weighting;and exec-utive incentives play a partially mediating role between controlling shareholders'equity pledge and corporate share price volatility.Further research shows that the smoothing effect of control-ling shareholders in making equity pledges on share price volatility is not achieved by increasing the firm's performance capabilities and surplus management levels,reducing information asym-metries and tunneling by large shareholders.The heterogeneous results also fully illustrate that non-state-controlled listed firms are more sensitive to equity pledges by controlling shareholders.This paper explores the role of controlling shareholders'equity pledges on share price volatility and its mechanism,which theoretically complements the literature on share price volatility and provides corresponding suggestions for external investors,financial institutions and government departments,offering new ideas to enhance the efficiency of corporate governance of listed com-panies.

controlling shareholderequity pledgeexecutive incentivestock price volatility

奚玉芹、张凯歌、胡金月、金晨曦、金永红、杨晓光

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上海对外经贸大学工商管理学院,上海 201620

上海师范大学商学院,上海 200234

华东理工大学商学院,上海 200237

中国科学院数学与系统科学研究院,北京 100190

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控股股东 股权质押 高管激励 股价波动

国家自然科学基金重大项目

72192800

2024

系统工程理论与实践
中国系统工程学会

系统工程理论与实践

CSTPCDCSSCI北大核心
影响因子:1.575
ISSN:1000-6788
年,卷(期):2024.44(3)
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