Journal of the Operational Research Society

, Volume 55, Issue 8, pp 814–821

Weight-restricted DEA in action: from expert opinions to mathematical models

Case-oriented Paper

DOI: 10.1057/palgrave.jors.2601752

Cite this article as:
Joro, T. & Viitala, EJ. J Oper Res Soc (2004) 55: 814. doi:10.1057/palgrave.jors.2601752

Abstract

A common problem in real-world DEA applications is that all inputs and outputs may not be equally relevant to the organizations analysed and their stakeholders. In many cases, one is also faced with a data set where the decision-making units do not clearly outnumber the quantity of inputs and outputs. This study reports an application where DEA embellished with weight restrictions is used to analyse the efficiency of public organizations to overcome the above-mentioned problems. Whereas there are numerous documented applications of weight-restricted DEA in the literature, the process of defining the actual weight restrictions is seldom described. However, that part — defining the actual weights restrictions based on price, preference or value information — is the most difficult step involved in using the weight-restricted DEA. Comparing various weight restriction schemes with real data suggests that the ability to consider and include preference information in DEA adds important insights into the analysis.

Keywords

assurance regions data envelopment analysis economic efficiency forestry public organizations weight restrictions 

Copyright information

© Palgrave Macmillan Ltd 2004

Authors and Affiliations

  1. 1.University of Alberta School of Business, EdmontonAlbertaCanada
  2. 2.Finnish Forest Research InstituteHelsinkiFinland

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