“国家队”救市、股价波动与异质性风险

被引：44

作者：

李志生

金凌

机构：

[1] 中南财经政法大学金融学院

来源：

管理科学学报 | 2019年 / 22卷 / 09期

关键词：

股灾; “国家队”持股; 机构投资者; 股价波动; 异质性风险;

D O I：

暂无

中图分类号：

F832.51 [];

学科分类号：

1201 ; 020204 ;

摘要：

2015年～2016年股灾以来,"国家队"救市是否起到了稳定市场的作用,受到了业界和学界的广泛关注.本研究利用2015年第三季度至2016年第四季度A股上市公司机构持股数据,探讨"国家队"救市对股价波动的影响.研究结果表明:"国家队"持股有效降低了股票价格的波动,并且这一作用显著区别于其他机构投资者;"国家队"持股稳定股票价格主要体现在对异质性波动的降低上,对系统性波动则没有显著影响.进一步研究发现,"国家队"持股通过改善信息环境、降低噪声交易、稳定投资者情绪以及减少投资者异质性信念来降低异质性波动.本研究拓展了政府干预市场和机构投资者相关的发现,对危机期间资本市场监管和系统性风险防范化解相关政策的制定具有启示意义.

引用

页码：67 / 81

页数：15

共 27 条

[1]

Product market competition; idiosyncratic and systematic volatility.[J].Hussein Abdoh;Oscar Varela.Journal of Corporate Finance.2017,

[2]

Idiosyncratic volatility: An indicator of noise trading?.[J].Tom Aabo;Christos Pantzalis;Jung Chul Park.Journal of Banking and Finance.2017,

[3]

Trend in aggregate idiosyncratic volatility.[J].Kiseok Nam;Shahriar Khaksari;Moonsoo Kang.Review of Financial Economics.2016,

[4]

The effect of the term auction facility on the London interbank offered rate.[J].James McAndrews;Asani Sarkar;Zhenyu Wang.Journal of Banking and Finance.2016,

[5]

Did TARP Banks Get Competitive Advantages?.[J].Allen N. Berger;Raluca A. Roman.Journal of Financial and Quantitative Analysis.2016, 6

[6]

Discount window stigma during the 2007–2008 financial crisis.[J].Olivier Armantier;Eric Ghysels;Asani Sarkar;Jeffrey Shrader.Journal of Financial Economics.2015, 2

[7]

Safer ratios; riskier portfolios: Banks׳ response to government aid.[J].Ran Duchin;Denis Sosyura.Journal of Financial Economics.2014, 1

[8] Disentangling systematic and idiosyncratic dynamics in panels of volatility measures [J].

Barigozzi, Matteo ;

Brownlees, Christian ;

Gallo, Giampiero M. ;

Veredas, David .

JOURNAL OF ECONOMETRICS, 2014, 182 (02) :364-384

[9]

Short‐Selling Bans Around the World: Evidence from the 2007–09 Crisis.[J].ALESSANDRO BEBER;MARCO PAGANO.The Journal of Finance.2013, 1

[10] Short-sales constraints and market quality: Evidence from the 2008 short-sales bans [J].

Frino, Alex ;

Lecce, Steven ;

Lepone, Andrew .

INTERNATIONAL REVIEW OF FINANCIAL ANALYSIS, 2011, 20 (04) :225-236

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