کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1032713 943258 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ensuring units invariant slack selection in radial data envelopment analysis models, and incorporating slacks into an overall efficiency score
موضوعات مرتبط
علوم انسانی و اجتماعی مدیریت، کسب و کار و حسابداری استراتژی و مدیریت استراتژیک
پیش نمایش صفحه اول مقاله
Ensuring units invariant slack selection in radial data envelopment analysis models, and incorporating slacks into an overall efficiency score
چکیده انگلیسی

This paper introduces a new methodology ensuring units invariant slack selection in radial DEA models and incorporating the slacks into an overall efficiency score. The CCR and BCC models are units invariant in their radial component, but not in their slack component, thus changing the units of measurement of one or more variables can change the models' solution. The proposed Full Proportional Slack (FPS) methodology improves the slack selections of the CCR and BCC models by producing slack selections that (a) are units invariant, thus producing fully units invariant models, (b) maximize the relative improvements represented by the slacks, and not their values, and (c) measure the full slacks that need to be removed from their corresponding variables. The FPS methodology is a fully oriented methodology first maximizing the improvements in the variables on the side of the orientation of the model. The Proportional Slack Adjusted (PSA) methodology incorporates the FPS slacks into an overall efficiency score, making it easier to interpret and use the results. The FPS and PSA methodologies are illustrated using an input oriented VRS Loan Quality DEA model with data from the retail branch network of one of Canada's largest banks.


► The FPS methodology ensures units invariant slack selection in radial DEA models.
► FPS maximizes the relative improvements represented by the slacks.
► FPS measures the full slacks to be removed from the corresponding variables.
► The FPS methodology is a fully oriented methodology.
► The PSA methodology incorporates the FPS slacks into an overall efficiency score.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Omega - Volume 41, Issue 1, January 2013, Pages 31–40
نویسندگان
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