Do Stock Markets Catch the Flu? We examine the impact of influenza on the U.S. stock market. A higher incidence of flu is associated with decreased trading, decreased volatility, and higher bid-ask spreads. We also find some evidence that more flu implies lower stock returns. Consistent with the flu affecting institutional investors and market-makers, the decrease in trading activity and volatility is primarily driven by the incidence of influenza in the greater New York City area. However, the effect of the flu on bid-ask spreads and returns is driven by the incidence of flu nationally. We provide estimates of the potential impacts of a pandemic on equity returns
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More about this item
Keywordsstock markets; influenza; volume;
- G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
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