The measurement of relative efficiency using data envelopment analysis with assurance regions that link inputs and outputs

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

M. Khalili (Autor) FEUP; A. S. Camanho (Autor) FEUP; M. C. A. S. Portela (Autor) FEUP; M. R. Alirezaee (Autor) FEUP

Revista

Título: European Journal of Operational Research

Vol. 203 Nº 3

Páginas: 761-770

ISSN: 0377-2217

Editora: Elsevier

Indexação

ISI Web of Knowledge - 28 Citações

ISI Web of Science

Scopus - 40 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

CORDIS: Ciências Sociais > Economia > Estudos de gestão

Outras Informações

ID Authenticus: P-003-5NS

DOI: 10.1016/j.ejor.2009.09.002

Abstract (EN): The most popular weight restrictions are assurance regions (ARs), which impose ratios between weights to be within certain ranges. ARs can be categorized into two types: ARs type I (ARI) and ARs type II (ARII). ARI specify bounds on ratios between input weights or between output weights, whilst ARII specify bounds on ratios that link input to output weights. DEA models with ARI successfully maximize relative efficiency, but in the presence of ARII the DEA models may under-estimate relative efficiency or may become infeasible. In this paper we discuss the problems that can occur in the presence of ARII and propose a new nonlinear model that overcomes the limitations discussed. Also, the dual model is described, which enables the assessment of relative efficiency when trade-offs between inputs and outputs are specified. The application of the model developed is illustrated in the efficiency assessment of Portuguese secondary schools.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10