Caldas, Antonio Vinicius Silva, Emerson de Sousa Silva, Antonio Francisco de Almeida Silva Junior, and Ulysses de Brito Cruz. 2021. “The Effects of Covid-19 on the Performance of the Shares of B3´s Sectors”. Contextus - Contemporary Journal of Economics and Management 19 (January):15-28. https://doi.org/10.19094/contextus.2021.60146.