S.M. Mirdehghan, A. Shirzadi
Department of Mathematics
College of Sciences
Shiraz University
Shiraz, IRAN
Department of Mathematics
Persian Gulf University
Boushehr, IRAN

Abstract. Data envelopment analysis (DEA) divides decision making units (DMUs) in two groups; efficient DMUs and inefficient DMUs. One problem that has been discussed frequently in DEA literature is lack of discrimination of efficient DMUs. This means that the conventional DEA does not provide more information about the efficient DMUs. This short paper proposes a new ranking system of decision making units (DMUs) based on the cost efficiency of these DMUs, which their input prices are available, and the effect of each DMU on the cost efficiency of other DMUs.

Received: July 6, 2012

AMS Subject Classification:

Key Words and Phrases: data envelopment analysis, cost efficiency, ranking

Download paper from here.