A new approach for considering a dual-role factor in data envelopment analysis

Abdollah Noorizadeh, Mahdi Mahdiloo, Reza Farzipoor Saen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The conventional data envelopment analysis models deal with dualrole factor as non-discretionary (uncontrollable) factor. However, there might be dual-role factor which is under control of decision-maker. In addition, despite the fact that there are several publications addressing dual-role factors, it seems that their idea of classifying a factor as an input or an output within a single model has a limitation. They also do not consider non-zero input and output slacks and cannot fully measure the inefficiency of decision-making units. To resolve these limitations and to consider dual-role factor as well, this paper proposes a slacks-based measure model which does not consider dualrole factor as a non-discretionary factor. To compare the results of proposed approach with conventional model, a statistical analysis is run. A numerical example demonstrates the application of the proposed method.

Original languageEnglish
Pages (from-to)135-155
Number of pages21
JournalInternational Journal of Operational Research
Issue number2
Publication statusPublished - May 2012


  • Contingency table
  • Data envelopment analysis
  • DEA
  • Dual-role factor
  • SBM
  • Slacksbased measure

ASJC Scopus subject areas

  • Management Science and Operations Research

Cite this