Metatechnology frontier and convexity: A restatement

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

Document type :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1016/j.ejor.2018.11.064

Title :

Metatechnology frontier and convexity: A restatement

Author(s) :

Kerstens, Kristiaan [Auteur]

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

Journal title :

European Journal of Operational Research

Pages :

780-792

Publisher :

Elsevier

Publication date :

2019-06-01

ISSN :

0377-2217

English keyword(s) :

Data envelopment analysis Free disposal hull Metafrontier

HAL domain(s) :

Sciences de l'Homme et Société/Economies et finances

English abstract : [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, ...
Show more >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.Show less >

Language :

Anglais

Popular science :

Non

Collections :