Total-Factor Energy Efficiency and Its Extensions: …
Sequentially, with similar idea, Tone defines SBM DEA and shows that the SBM can be deemed as a product of input and output inefficiencies. The original SBM DEA proposed by Tone is a non-oriented or both-oriented efficiency measure which deals with total slacks both in inputs and outputs. Hence, as noted in his paper, SBM-efficient is full ...