东北大学学报(社会科学版) ›› 2024, Vol. 26 ›› Issue (6): 67-77.DOI: 10.15936/j.cnki.1008-3758.2024.06.008

• 经济与管理研究 • 上一篇    下一篇

注册制改革视角的投资者信息不对称问题研究

王意德,张兵   

  1. (南京大学商学院,江苏南京210093)
  • 发布日期:2024-12-06
  • 通讯作者: 王意德
  • 作者简介:王意德(1995-),男,河北石家庄人,南京大学博士研究生,主要从事金融计量与实证金融研究;张兵(1969-),男,江苏南京人,南京大学教授,博士生导师,主要从事实证金融与资产定价研究。
  • 基金资助:
    研究阐释党的二十大精神国家社会科学基金重大资助项目(23ZDA041)。

Research of Investors' Information Asymmetry from the Perspective of Registration System Reform

WANG Yide, ZHANG Bing   

  1. (School of Business, Nanjing University, Nanjing 210093, China)
  • Published:2024-12-06
  • Contact: -
  • About author:-
  • Supported by:
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摘要: 作为制约中国股市投资功能和市场运行状况的重要因素,投资者信息不对称会加剧投资者损失并损害市场流动性。不同类型的投资者面临的信息制约具有异质性,即机构投资者受投资者信息不对称的边际影响更为明显,而散户投资者受信息不对称的影响程度更为严重,投资损失也最为严重。创业板市场的发行审核制度历经核准制到注册制的重大变革后,市场信息环境得到显著改善,创业板市场的投资者信息不对称程度持续下降且显著,但是这一政策效应具有异质性,即机构投资者信息不对称程度显著下降,但并没有证据支持散户投资者信息不对称程度的下降。

关键词: 注册制改革; 信息不对称; 流动性; 投资者损益; 政策评估

Abstract: As an important variable that restricts investment functions and operating conditions of the Chinese stock market, investors' information asymmetry can aggravate investors' losses and damage market liquidity. The information constraints faced by different types of investors are heterogeneous, i.e., institutional investors are more significantly affected by the marginal impact of investors' information asymmetry, while retail investors suffer from a greater degree of information asymmetry and more severe investment losses. The GEM market has undergone major changes in the issuance review system from the approval system to the registration system, and the market information environment has improved significantly, which has led to a significant and continuous decline in the degree of investors' information asymmetry in the GEM market. However, this policy effect is heterogeneous, that is, the degree of institutional investors' information asymmetry has decreased significantly, but there is no evidence to support the decline in the degree of retail investors' information asymmetry.

Key words: registration system reform; information asymmetry; liquidity; investors' gains and losses; policy evaluation

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