Elsevier created a free COVID-19 resource center in January 2020, offering English and Mandarin information on the virus. The center is hosted on Elsevier Connect, and the company grants permission for free access to its research in PubMed Central and other repositories. The paper "Corporate immunity to the COVID-19 pandemic" examines how corporate characteristics influenced stock returns during the pandemic. It analyzes 6,700 firms across 61 economies, finding that firms with stronger pre-2020 finances, less exposure through supply chains and customers, higher CSR, and less entrenched executives performed better. Family-controlled, large, and government-owned firms also fared better, while those with high managerial ownership saw worse results. The study also finds that stock markets negatively price high managerial ownership during the pandemic. Country-level analyses show that markets outside Italy reacted negatively to Italian cases, and that policies encouraging social distancing and fiscal stimulus positively affected stock returns. The research highlights the importance of corporate characteristics in determining resilience to the pandemic.Elsevier created a free COVID-19 resource center in January 2020, offering English and Mandarin information on the virus. The center is hosted on Elsevier Connect, and the company grants permission for free access to its research in PubMed Central and other repositories. The paper "Corporate immunity to the COVID-19 pandemic" examines how corporate characteristics influenced stock returns during the pandemic. It analyzes 6,700 firms across 61 economies, finding that firms with stronger pre-2020 finances, less exposure through supply chains and customers, higher CSR, and less entrenched executives performed better. Family-controlled, large, and government-owned firms also fared better, while those with high managerial ownership saw worse results. The study also finds that stock markets negatively price high managerial ownership during the pandemic. Country-level analyses show that markets outside Italy reacted negatively to Italian cases, and that policies encouraging social distancing and fiscal stimulus positively affected stock returns. The research highlights the importance of corporate characteristics in determining resilience to the pandemic.