Cost efficiency measurement with price uncertainty : a DEA application to bank branch assessments

• Type: Article in International Scientific Journal
• Date: 2005

Authors

A. S. Camanho (Author) FEUP; R. G. Dyson (Author) Other

Journal

Title: European Journal of Operational Research

Vol. 161 No. 2

Pages: 432-446

ISSN: 0377-2217

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 124 Citations

ISI Web of Science

Scopus - 152 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Physical sciences > Mathematics > Applied mathematics > Operations research

Other information

Authenticus ID: P-000-4EJ

DOI: 10.1016/j.ejor.2003.07.018

Abstract (EN): This paper enhances cost efficiency measurement methods to account for different scenarios relating to input price information. These consist of situations where prices are known exactly at each decision making unit (DMU) and situations with incomplete price information. The main contribution of this paper consists of the development of a method for the estimation of upper and lower bounds for the cost efficiency (CE) measure in situations of price uncertainty, where only the maximal and minimal bounds of input prices can be estimated for each DMU. The bounds of the CE measure are obtained from assessments in the light of the most favourable price scenario (optimistic perspective) and the least favourable price scenario (pessimistic perspective). The assessments under price uncertainty are based on extensions to the Data Envelopment Analysis (DEA) model that incorporate weight restrictions of the form of input cone assurance regions. The applicability of the models developed is illustrated in the context of the analysis of bank branch performance. The results obtained in the case study showed that the DEA models can provide robust estimates of cost efficiency even in situations of price uncertainty.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15