增长和价值投资策略之间的回报差异的时间趋势和持久性
Manuel Monge1,2, Rafael Hurtado3, Juan Infante4
1Universidad Francisco de Vitoria, Madrid, Spain.
PloS one
|September 23, 2025
概括
随着COVID-19的流行,投资策略发生了永久性的变化. 价值和增长投资的动态从长期偏差转向自我纠正的模式,影响了长期的市场平衡.
科学领域:
- 金融 金融 金融 金融 金融
- 计量经济学 计量经济学 计量经济学
背景情况:
- 随着COVID-19大流行,金融市场发生了重大结构性变化.
- 了解价值投资和增长战略之间的动态不平衡至关重要.
研究的目的:
- 检查COVID-19流行病对价值和增长投资战略动态的影响.
- 分析这些策略之间的回报差异的持久性和制度转变.
主要方法:
- 分数整合分析用于评估长期记忆和持久性.
- 马尔科夫切换动态回归 (MS-DR) 模型用于识别政权转移.
主要成果:
- 在2020年3月之前,回报差异表现出高持久性,没有回归平均值,表明长期的偏差.
- 疫情后,发生了政权转变,其特点是适度的持久性和回归平均值,这表明回报差异随着时间的推移而变得正确.
结论:
- 疫情引发了价值和增长战略动态的永久变化.
- 这种政权转变对这些投资方法的长期平衡有重大影响.
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