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  • Yiwen Bian
  • 2008
To effectively evaluate decision making units' (DMUs) eco-efficiencies, this paper presents a new approach based on additive DEA model, which can evaluate eco-efficiency without requiring any data transformation or user specified direction vector. This is achieved by defining a ranking efficiency measure which can be estimated by solving the additive DEA(More)
The objective of this paper is to address a typical efficiency analysis problem, in which interval inputs/outputs are considered. This paper firstly discusses the main weakness of the existing model in dealing with imprecise data, that different DMUs (decision making units) are rated under different production frontier, which makes the efficiency(More)
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