Marconatto, Diego Antônio Bittencourt, Luciano Barin Cruz, Gilnei Luiz de Moura, and Emidio Gressler Teixeira. 2017. “Why the Microfinance Institutions Exist: Lending Groups As a Mechanism to Enhance Informational Symmetry and Enforcement Activities”. Organizações & Sociedade 24 (83). https://periodicos.ufba.br/index.php/revistaoes/article/view/15011.