FANG, Jing. The Effects of COVID-19 on the Returns and Volatilities of Global Stock Indexes. International Journal of Global Economics and Management, London, U.K., v. 5, n. 1, p. 123–143, 2024. DOI: 10.62051/ijgem.v5n1.14. Disponível em: https://wepub.org/index.php/IJGEM/article/view/4321. Acesso em: 18 apr. 2026.