A cost Malmquist productivity index capturing group performance

Emmanuel Thanassoulis*, Rashed Khanjani Shiraz, Nikolaos Maniadakis

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This paper develops an index for comparing the productivity of groups of operating units in cost terms when input prices are available. In that sense it represents an extension of a similar index available in the literature for comparing groups of units in terms of technical productivity in the absence of input prices. The index is decomposed to reveal the origins of differences in performance of the groups of units both in terms of technical and cost productivity. The index and its decomposition are of value in contexts where the need arises to compare units which perform the same function but they can be grouped by virtue of the fact that they operate in different contexts as might for example arise in comparisons of water or gas transmission companies operating in different countries.

Original languageEnglish
Pages (from-to)796-805
Number of pages10
JournalEuropean Journal of Operational Research
Volume241
Issue number3
Early online date25 Oct 2014
DOIs
Publication statusPublished - 16 Mar 2015

Bibliographical note

© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • cost efficiency
  • data envelopment analysis
  • Malmquist index
  • productivity

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