Sensitivity of directional technical inefficiency measures to the choice of the direction vector: a simulation study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Macedo, P (Autor) Outra; Elvira Silva (Autor) FEP

Revista

Título: Economics Bulletin

Vol. 37 Nº 1

Páginas: 52-+

ISSN: 1545-2921

Editora: Economics Bulletin

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00M-EVK

Abstract (EN): The purpose of this note is to provide new insights on the sensitivity of technical inefficiency scores, estimated using a directional distance function with small samples and the presence of outliers, to the choice of the direction vector. A simulation study with a geometric illustration is conducted considering several direction vectors. To the best of authors' knowledge, this is the first simulation work comparing 16 direction vectors, some of which are often employed in empirical studies. The four directional vectors that consistently provide the best results are identified and used in the empirical application discussed in this study.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12