Preventing crash in stock market: The role of economic policy uncertainty during COVID-19

This paper investigates the impact of economic policy uncertainty (EPU) on the crash risk of US stock market during the COVID-19 pandemic. To this end, we use the GARCH-S (GARCH with skewness) model to estimate daily skewness as a proxy for the stock market crash risk. The empirical results show the...

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Detalles Bibliográficos
Autores principales: Dai, Peng-Fei, Xiong, Xiong, Liu, Zhifeng, Huynh, Toan Luu Duc, Sun, Jianjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8079234/
https://www.ncbi.nlm.nih.gov/pubmed/35024279
http://dx.doi.org/10.1186/s40854-021-00248-y
Descripción
Sumario:This paper investigates the impact of economic policy uncertainty (EPU) on the crash risk of US stock market during the COVID-19 pandemic. To this end, we use the GARCH-S (GARCH with skewness) model to estimate daily skewness as a proxy for the stock market crash risk. The empirical results show the significantly negative correlation between EPU and stock market crash risk, indicating the aggravation of EPU increase the crash risk. Moreover, the negative correlation gets stronger after the global COVID-19 outbreak, which shows the crash risk of the US stock market will be more affected by EPU during the epidemic.

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