Araújo de Carvalho FP, Andrade JX, Lopes JB. Essay on the effect of employment and income: the contrast of the elasticities of the regions of Brazil and the reality of Piauí. G. Sci. [Internet]. 2020 Mar. 31 [cited 2024 Sep. 18];14(1). Available from: https://periodicos.ufpb.br/index.php/gaia/article/view/39411