Estimating the welfare effect of food price increase on households in Nigeria: Direct and substitution effect approach . International Journal of Sustainable Agricultural Research, [S. l.], v. 10, n. 1, p. 1–20, 2023. DOI: 10.18488/ijsar.v10i1.3252. Disponível em: https://archive.conscientiabeam.com/index.php/70/article/view/3252. Acesso em: 2 nov. 2026.