In models of data envelopment analysis (DEA), an optimal set of weights is generally assumed to represent the assessed decision making unit (DMU) in the best light in comparison to all the other DMUs, and so there is an optimal set of weights corresponding to each DMU. The present paper, proposes a three stage method to determine one common set of weights for decision making units. Then, we use...

the basic models of data envelopment analysis (dea) are designed in such a way that the values of input and output indicators should be identified and known in them. in other words, these models are not used to consider inaccurate, interval, fuzzy, judgment data. in this paper, the aim is to not only review the past researches about the efficiency of the units by interval data and represent the...

The objective of this paper is to benchmark the performance of twelve publicly owned managed care organizations against one another for the period 2009 to 2011. In this paper, we use data envelopment analysis, an operations research technique, to benchmark the performance of twelve publicly managed care organizations. Data envelopment analysis clearly brings out the organizations that are opera...