Metatechnology frontier and convexity: A restatement

Kerstens, Kristiaan; O’donnell, Christopher; van de Woestyne, Ignace

Type de document :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1016/j.ejor.2018.11.064

Titre :

Metatechnology frontier and convexity: A restatement

Auteur(s) :

Kerstens, Kristiaan [Auteur]

Lille économie management - UMR 9221 [LEM]
O’donnell, Christopher [Auteur]
van de Woestyne, Ignace [Auteur]

Titre de la revue :

European Journal of Operational Research

Pagination :

780-792

Éditeur :

Elsevier

Date de publication :

2019-06-01

ISSN :

0377-2217

Mot(s)-clé(s) en anglais :

Data envelopment analysis Free disposal hull Metafrontier

Discipline(s) HAL :

Sciences de l'Homme et Société/Economies et finances

Résumé en anglais : [en]

This article reconsiders the way metafrontiers and associated measures of efficiency are obtained from nonparametric estimates of underlying group-specific frontiers. Both convex and non-convex metasets have been applied, ...
Lire la suite >This article reconsiders the way metafrontiers and associated measures of efficiency are obtained from nonparametric estimates of underlying group-specific frontiers. Both convex and non-convex metasets have been applied, but the large majority of articles applying this popular methodology assume that the metafrontier envelops a convex metaset. We argue that associated estimates of efficiency are potentially unreliable. We develop a refined methodology for nonparametric envelopment of non-convex metasets. We apply our methodology to a secondary data set to illustrate the potential errors associated with the currently established methods. Anticipating our main conclusion, we find that the convexification strategy consisting in assuming a convex metaset generally leads to erroneous results.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :