Martins WGT, Ramos P de S, Frias L. Does the Bolsa Família Program make people work less? An analysis using propensity score matching. Sigmae [Internet]. 2021 Sep. 2 [cited 2024 May 12];8(1):16-34. Available from: https://publicacoes.unifal-mg.edu.br/revistas/index.php/sigmae/article/view/890