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An epsilon-based measure of efficiency in DEA revisited -A third pole of technical efficiency- TONE, Kaoru TSUTSUI, Miki Data envelopment analysis Radial Non-radial CCR SBM EBM Principal component analysis https://www.grips.ac.jp/list/facultyinfo/tone_kaoru/ In DEA, we have two measures of technical efficiency with different characteristics: radial and non-radial. In this paper we compile them into a composite model called “epsilon-based measure (EBM).” For this purpose we introduce two parameters which connect radial and non-radial models. These two parameters are obtained from the newly defined affinity index between inputs or outputs along with principal component analysis on the affinity matrix. Thus, EBM takes into account diversity of input/output data and their relative importance for measuring technical efficiency. 経済学 / Economics GRIPS Policy Research Center 2010-02-01 eng technical report AM https://doi.org/10.24545/00001021 https://grips.repo.nii.ac.jp/records/1021 10.24545/00001021 https://ideas.repec.org/p/ngi/dpaper/09-21.html https://ideas.repec.org/p/ngi/dpaper/09-21.html GRIPS Discussion Papers DP09-21 https://grips.repo.nii.ac.jp/record/1021/files/DP09-21.pdf application/pdf 293.4 kB