Documents disponibles écrits par cet auteur

Adjusted spherical frontier model: allocating input via parametric DEA / E. C. C. Guedes in Journal of the operational research society (JORS), Vol. 63 N° 3 (Mars 2012) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 63 N° 3 (Mars 2012) . - pp. 406–417 Titre : Adjusted spherical frontier model: allocating input via parametric DEA Type de document : texte imprimé Auteurs : E. C. C. Guedes, Auteur ; Milioni, A. Z., Auteur ; de Avellar, J. V. G., Auteur Année de publication : 2012 Article en page(s) : pp. 406–417 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : DEA  Parametric  DEA  Input  allocation  Fixed  cost  allocation Index. décimale : 001.424 Résumé : This paper presents the adjusted spherical frontier model (ASFM), a parametric data envelopment analysis (DEA) model for input allocation. Following a common principle from other solutions found in the literature, ASFM considers that the process of allocating the new input is fair if it ends in such a way that all decision-making units will become DEA-CCR efficient. ASFM's main assumption is the spherical shape of the efficiency frontier. It is because of that assumption that ASFM is called a parametric DEA model. Numeric examples are presented showing that, within the context of sensitivity analysis, ASFM reaches more coherent results than other models found in the literature. This numeric evidence leads to a theorem which formally states this more coherent behaviour. The proof of this theorem is included in this paper. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n3/abs/jors201142a.html [article] Adjusted spherical frontier model: allocating input via parametric DEA [texte imprimé] / E. C. C. Guedes, Auteur ; Milioni, A. Z., Auteur ; de Avellar, J. V. G., Auteur . - 2012 . - pp. 406–417. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 63 N° 3 (Mars 2012) . - pp. 406–417 Mots-clés : DEA  Parametric  DEA  Input  allocation  Fixed  cost  allocation Index. décimale : 001.424 Résumé : This paper presents the adjusted spherical frontier model (ASFM), a parametric data envelopment analysis (DEA) model for input allocation. Following a common principle from other solutions found in the literature, ASFM considers that the process of allocating the new input is fair if it ends in such a way that all decision-making units will become DEA-CCR efficient. ASFM's main assumption is the spherical shape of the efficiency frontier. It is because of that assumption that ASFM is called a parametric DEA model. Numeric examples are presented showing that, within the context of sensitivity analysis, ASFM reaches more coherent results than other models found in the literature. This numeric evidence leads to a theorem which formally states this more coherent behaviour. The proof of this theorem is included in this paper. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n3/abs/jors201142a.html