Darush Akbarian

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This research proposes a new ranking system for extreme efficient DMUs (Decision Making Units) based upon the omission of these efficient DMUs from reference set of the inefficient DMUs. We state and prove some facts related to our model. A numerical example where the proposed method is compared with traditional ranking approaches is shown. 2006 Elsevier(More)
DEA-based Malmquist productivity index measures the productivity change over time. Cost Malmquist index is defined in terms of input cost rather than input quantity distance functions. Hence, productivity change is decomposed into overall efficiency and cost technical change. In this paper, we provide an extension to the cost Malmquist approach by further(More)
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