Abstract
This paper examines the impact of economic uncertainty on the stock market crisis during the COVID-19 epidemic. We construct a GARCH type of model to measure the daily skewness of S&P 500 for the tail risk of the U.S. stock market. We measure economic uncertainty using three indices including the EPU (Economic Policy Uncertainty Index), EMU (Equity Market-related Economic Uncertainty Index), and EMI (Equity Market Volatility: Infectious Disease Tracker). The empirical findings reveal a positive correlation between daily skewness and economic uncertainty and this correlation gets stronger after the outbreak of the COVID-19 pandemic. Our results embrace consistent economic policy schemes for overall stock market stability.
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