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Combining equity and utilitarianism in a mathematical programming model / J. N. Hooker in Management science, Vol 58 N°9 (Septembre 2012) 

Public ISBD [article]  in Management science > Vol 58 N°9 (Septembre 2012) . - pp.1682-1693 Titre : Combining equity and utilitarianism in a mathematical programming model Type de document : texte imprimé Auteurs : J. N. Hooker, Auteur ; H. P. Williams, Auteur Année de publication : 2012 Article en page(s) : pp.1682-1693 Note générale : Management Langues : Anglais (eng) Résumé : We discuss the problem of combining the conflicting objectives of equity and utilitarianism, for social policy making, in a single mathematical programming model. The definition of equity we use is the Rawlsian one of maximizing the minimum utility over individuals or classes of individuals. However, when the disparity of utility becomes too great, the objective becomes progressively utilitarian. Such a model is particularly applicable not only to health provision but to other areas as well. Building a mixed-integer/linear programming (MILP) formulation of the problem raises technical issues, because the objective function is nonconvex and the hypograph is not MILP representable in its initial form. We present a succinct formulation and show that it is “sharp” in the sense that its linear programming relaxation describes the convex hull of the feasible set (before extra resource allocation or policy constraints are added). We apply the formulation to a healthcare planning problem and show that instances of realistic size are easily solved by standard MILP software. ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/9/1682.short [article] Combining equity and utilitarianism in a mathematical programming model [texte imprimé] / J. N. Hooker, Auteur ; H. P. Williams, Auteur . - 2012 . - pp.1682-1693. Management Langues : Anglais (eng) in Management science > Vol 58 N°9 (Septembre 2012) . - pp.1682-1693 Résumé : We discuss the problem of combining the conflicting objectives of equity and utilitarianism, for social policy making, in a single mathematical programming model. The definition of equity we use is the Rawlsian one of maximizing the minimum utility over individuals or classes of individuals. However, when the disparity of utility becomes too great, the objective becomes progressively utilitarian. Such a model is particularly applicable not only to health provision but to other areas as well. Building a mixed-integer/linear programming (MILP) formulation of the problem raises technical issues, because the objective function is nonconvex and the hypograph is not MILP representable in its initial form. We present a succinct formulation and show that it is “sharp” in the sense that its linear programming relaxation describes the convex hull of the feasible set (before extra resource allocation or policy constraints are added). We apply the formulation to a healthcare planning problem and show that instances of realistic size are easily solved by standard MILP software. ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/9/1682.short