中国股票投资者的处置效应检验和参考价格选择

中国管理科学 ›› 2013, Vol. 21 ›› Issue (3): 1-10.

• 论文 • 下一篇

中国股票投资者的处置效应检验和参考价格选择

任德平^1,3, 龚旭^2,3, 文凤华², 杨晓光^3,4

1. 湖南大学工商管理学院, 湖南长沙 410082;
2. 中南大学商学院, 湖南长沙 410082;
3. 长沙理工大学经济与管理学院, 湖南长沙 410114;
4. 中国科学院数学与系统科学研究院管理、决策与信息系统重点实验室, 北京 100190

收稿日期:2012-07-30 修回日期:2012-12-12 出版日期:2013-06-30 发布日期:2013-06-20
基金资助:
国家自然科学基金资助项目(70971013,71171076,71171024)

Chinese Stock Investors' Disposition Effect Testing and Reference Price Choosing

REN De-ping^1,3, GONG Xu^2,3, WEN Feng-hua², YANG Xiao-guang^3,4

1. School of Business and Management, Hunan University, Changsha 410082, China;
2. School of Business, Central South University, Changsha 410082, China;
3. School of Economics and Management, Changsha University of Science and Technology, Changsha 410114, China;
4. Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China

Received:2012-07-30 Revised:2012-12-12 Online:2013-06-30 Published:2013-06-20

摘要/Abstract

摘要： 处置效应是一种比较典型的投资者非理性行为。本文在线性量价回归模型的基础上,引入Grinblatt和Han^[1]提出的资本利得突出量来检验中国股票投资者整体上是否存在处置效应。然后,使用新提出的6个参考价格与以往对股票市场研究中主要使用的两个参考价格(股票过去260周内加权平均价和过去52周内最高价)相比较,寻找更加适合处置效应研究的参考价格;同时,在选择不同的参考价格下,进一步检验投资者是否存在处置效应。研究结果表明:中国股票投资者整体上存在处置效应;并且在处置效应的研究中,新提出的参考价格——股票5周加权移动平均价明显优于以往学者提出的参考价格。因此,研究整个股票市场中投资者的处置效应时,使用该价格作为参考价格更加合理。

关键词: 处置效应, 资本利得突出量, 参考价格, 量价关系

Abstract: The disposition effect is a typical irrational behavior. Based on the linear regression model of volume-price, a new variable named "capital gain overhang"^[1]is introduced into this model to test whether Chinese stock investors show "disposition effect" when they are engaged in stock trading. And then, by comparing with the two common reference prices (the 5-year weighted average price and the 52-week high price), six new reference prices in our empirical model are put forward to find a more appropriate reference price in Chinese stock market. Meanwhile, through choosing different reference prices in empirical analysis, "disposition effecting" Chinese stock market on the whole is also checked. The research results show that Chinese stock investors present "disposition effect" on the whole. And the proposed new reference price (the 5-week weigted moving average price) is better than the previous commonly used reference prices in our empirical study. Therefore, using this price as a reference price is more reasonable when studying the disposition effect of entire stock market investors.

Key words: disposition effect, capital gain overhang, reference price, volume-price relation

中图分类号:

F830

任德平, 龚旭, 文凤华, 杨晓光. 中国股票投资者的处置效应检验和参考价格选择[J]. 中国管理科学, 2013, 21(3): 1-10.

REN De-ping, GONG Xu, WEN Feng-hua, YANG Xiao-guang. Chinese Stock Investors' Disposition Effect Testing and Reference Price Choosing[J]. Chinese Journal of Management Science, 2013, 21(3): 1-10.

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中国股票投资者的处置效应检验和参考价格选择

Chinese Stock Investors' Disposition Effect Testing and Reference Price Choosing

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