相关实验视频
Updated: Jun 29, 2025

05:37
An R-Based Landscape Validation of a Competing Risk Model
Published on: September 16, 2022
2.1K
分析师乐观,信息披露和股价崩盘风险:从中国A股市场的经验见解
Yang Li1,2,3, Yingchun Zhang1,2,3, Rui Ma1,2,3
1School of Economic and Management, Qinghai Minzu University, Xining, Qinghai, P. R. China.
PloS one
|March 28, 2024
概括
分析师的乐观情绪增加了中国股价崩盘的风险. 公司更好地披露信息可以放大这种效应,突出需要提高透明度和监管.
科学领域:
- 金融市场是金融市场.
- 公司融资公司融资
- 行为金融是行为金融.
背景情况:
- 分析师的乐观是金融市场中公认的现象.
- 股价暴跌对投资者和市场稳定构成重大风险.
- 信息披露的质量对于市场的有效运作至关重要.
研究的目的:
- 调查分析师乐观和股价崩之间的关系.
- 检查信息披露质量的调节作用.
- 探索将分析师乐观与股票价格崩联系起来的传输机制.
主要方法:
- 使用固定效应模型进行分析.
- 从中国A股市场 (2011-2020) 获得的就业股票数据.
- 对传输机制进行了额外的分析.
主要成果:
- 在分析师乐观和股价崩盘风险之间发现了正相关性.
- 提升信息披露质量可以放大分析师乐观对崩风险的影响.
- 分析师的乐观情绪通过影响机构所有权来增加崩风险.
结论:
- 调查结果支持修订信息披露评估系统.
- 建议包括监管分析师行业和改善公司治理.
- 加强信息披露实践对于市场稳定至关重要.
相关概念视频
Psychological and Sociocultural Causes of Schizophrenia
84
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
84
Hindsight Biases
3.4K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
3.4K
Groupthink
44.3K
When in group settings, we are often influenced by the thoughts, feelings, and behaviors around us. Groupthink is another phenomenon of conformity where modification of the opinions of members in a group aligns with what they believe is the group consensus (Janis, 1972). In such situations, the group often takes action that individuals would not perform outside the group setting because groups make more extreme decisions than individuals do. Moreover, groupthink can hinder opposing trains of...
44.3K
Framing Effects
7.4K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
7.4K
Hazard Rate
104
The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
104
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
126
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
126

