The effects of Covid-19 on the performance of the shares of B3´s sectors. Contextus – Contemporary Journal of Economics and Management , [S. l.], v. 19, p. 15–28, 2021. DOI: 10.19094/contextus.2021.60146. Disponível em: https://periodicos.ufc.br/contextus/article/view/60146. Acesso em: 25 apr. 2026.