Stefano Giglio During the COVID-19 Crash, Investors’ Beliefs Didn’t Match Their Behavior Stefano Giglio October 22, 2020 Despite a general wave of pessimism following the COVID-19 stock crash in March, few investors made significant changes to their portfolios, according to new research from Yale SOM’s Stefano Giglio. Researchers Propose New Method to Hedge against the Risk of Climate Disaster Stefano Giglio, Bryan T. Kelly October 29, 2019 Markets could be a huge part of mitigating climate risk. A proposal from Yale finance faculty seeks to make that a reality. How Do Investors Respond to Uncertainty? Stefano Giglio March 02, 2018 Conventional wisdom says that uncertainty is bad for markets. But Yale SOM’s Stefano Giglio and his co-authors found that investors are willing to pay a premium to protect themselves only against actual market volatility, not mere uncertainty.