CORTEZ, Rafael; CALVO, César. Targeting in social expenditure: the incentive-effects in beneficiary households. Apuntes. Social Sciences Journal, [S. l.], n. 40, p. 3–26, 1997. DOI: 10.21678/apuntes.40.452. Disponível em: https://revistas.up.edu.pe/apuntes/article/view/452. Acesso em: 11 sep. 2026.