AYÉDJO ATIN VALENTIN; TASSOU FILKIBIROU ZAKARI; AFOUDA JACOB YABI. Warrantage and maize productivity in northern Benin: Evidence from a Seemingly Unrelated Regression (SUR) model. African Scientific Journal, [S. l.], v. 3, n. 37, p. 1858 , 2026. DOI: 10.5281/zenodo.22014154. Disponível em: https://www.africanscientificjournal.com/index.php/AfricanScientificJournal/article/view/2109. Acesso em: 20 août. 2026.