Event Study - Analysis of the decisions of the Administrative Council of Economic Defense in mergers and acquisitions in the electricity and telecommunications sectors. Research, Society and Development, [S. l.], v. 10, n. 1, p. e29110111756, 2021. DOI: 10.33448/rsd-v10i1.11756. Disponível em: https://rsdjournal.org/rsd/article/view/11756. Acesso em: 5 dec. 2025.