投资者情绪、过度交易与中国A股市场波动——基于证券投资者信心指数调查数据的分析

被引:15
作者
王道平 [1 ]
范小云 [1 ]
贾昱宁 [2 ]
王业东 [1 ]
机构
[1] 南开大学金融学院
[2] 中国人民银行天津分行
关键词
投资者情绪; 过度交易; A股市场波动; 证券投资者信心指数; 有向无环图;
D O I
10.19920/j.cnki.jmsc.2022.07.006
中图分类号
F832.51 [];
学科分类号
1201 ; 020204 ;
摘要
本文采用证券投资者保护基金调查数据的证券投资者信心指数(SICI),运用有向无环图(DAG)以及基于有向无环图结果的递归预测方差分解技术,深入探究了我国投资者情绪、过度交易行为与股市波动间的同期及动态影响,进而为减轻我国A股市场的过度波动现象,防范化解金融系统性风险提供实证支持.实证结果显示:就同期影响而言,我国A股市场的过度波动与投资者情绪变化导致了过度交易行为;就动态影响而言,随着互联网通讯技术与杠杆交易的兴起,我国投资者情绪、市场波动具有较强的“自我实现”机制,尽管近年来我国投资者情绪及交易行为日趋理性,但在市场出现较大波动尤其是牛熊更替暴跌时期,市场波动对我国投资者情绪影响将会变大,投资者情绪波动将导致非理性交易行为显著增加,此时投资者的非理性情绪与交易行为也将对我国A股市场波动产生显著影响,加剧了我国证券市场风险.
引用
收藏
页码:85 / 105
页数:21
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