2026-03-11T00:31:59Z https://grips.repo.nii.ac.jp/oai

oai:grips.repo.nii.ac.jp:00001014 2023-11-20T08:55:08Z 1:19

Technical efficiency based on cost gradient measure TSUTSUI, Miki TONE, Kaoru YOSHIDA, Yuichiro cost gradient measure DEA technical efficiency input price https://www.grips.ac.jp/list/facultyinfo/tone_kaoru/ https://www.grips.ac.jp/list/jp/facultyinfo/yoshida_yuichiro/ This study introduces a new scheme of data envelopment analysis (DEA) named cost gradient measure (CGM) to evaluate technical efficiency. In this model, we can obtain more cost conscious technical efficiency than those by other traditional DEA models such as CCR[7] and slacks-based measure (SBM) [19]. In addition, the CGM can avoid shortcomings of these traditional models, i.e. factor inefficiency scores can be measured for each input as opposed to CCR and SBM models. In this study, we show the generality of CGM that it includes CCR as a special case; and compare the CGM result with those of the other DEA models using illustrative data, and clarify favorite features of this model. In addition, we also apply these models to Japanese electric utilities and explain the characteristics of their results. GRIPS Policy Research Center 2009-10-01 eng technical report AM https://doi.org/10.24545/00001014 https://grips.repo.nii.ac.jp/records/1014 10.24545/00001014 https://ideas.repec.org/p/ngi/dpaper/09-14.html https://ideas.repec.org/p/ngi/dpaper/09-14.html GRIPS Discussion Papers DP09-14 https://grips.repo.nii.ac.jp/record/1014/files/DP09-14.pdf application/pdf 397.3 kB