Abstract
As demonstrated in Fig. 2.3 (Chap. 2, Envelopment DEA Models), the VRS envelopment model identifies the VRS frontier with DMUs exhibiting IRS (increasing returns to scale), CRS (constant returns to scale), and DRS (decreasing returns to scale). In fact, the economic concept of RTS (returns to scale) has been widely studied within the framework of DEA. RTS have typically been defined only for single output situations. DEA generalizes the notion of RTS to the multiple-output case. This, in turn, further extended the applicability of DEA.KeywordsEnvelopment ModelMultiple-output CaseMost Productive Scale Size (MPSS)Efficiency ScoresEstimation SpreadsheetThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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