An Escape from the Malthus Rectangle? Poverty, and Conversion Efficiency (Distinguishedl Lecture). The Pakistan Development Review, [S. l.], v. 33, n. 4I, p. pp.433–461, 1994. DOI: 10.30541/v33i4Ipp.433-461. Disponível em: https://thepdr.pk/index.php/pdr/article/view/1249. Acesso em: 27 oct. 2025.