Are pandemics systemically important to modern-day financial markets? This study uses the COVID-19 pandemic as a natural experiment for testing how large-scale pandemics affect the financial markets. Using hand-collected data at the firm level, I find that managers systematically underestimated...

Firms have increasingly used social media such as Twitter to disseminate corporate disclosures, particularly since the regulation of these platforms by the Securities and Exchange Commission (SEC) in 2013. However, research on social media dissemination is still limited. Even though a few...