QM - Quantitative Methoden in Forschung und Praxis, Band 36 178 pages. Data Envelopment Analysis (DEA) is a benchmarking tool that evaluates the relative efficiency by comparing peer decision making units (DMUs) which transform varying quantities of the same set of inputs into varying amounts of the same set of outputs. The efficiency score is defined as the ratio of the weighted sum of outputs to the weighted sum of inputs. Input and output weights are not a priori specified but determined model endogenously. Consequently each DMU is free to choose the optimal set of weights that maximizes its efficiency score, showing itself in the most favorable light. This total flexibility of weights may lead to disputable results. It could happen that the efficiency score will be given by the ratio of only one single input and one single output. It follows that the weights of the remaining inputs and outputs are reduced to zero, thus neglecting or ignoring inputs and outputs relative to which the evaluated DMU performs poorly. This weakens DEA assuming that inputs and outputs were chosen because of their relevance. This is particularly inconvenient for business cases in which balance is primordial, whereby DMUs target to perform well relative to all indicators. With regard to balance two different approaches consisting of different methods can be distinguished in the DEA literature. The balance enforcement approach takes the balance into account by means of weights restrictions whereas the balance measurement approach introduces balance as an additional performance indicator complementary to the efficiency score. This work extensively presents, analyzes and compares balance measuring methods applying them on real life applications. It results typical model's characteristics, properties and limitations from which managerial insights are deduced. Indeed, balance measuring methods offer insights about the strategy followed by DMUs and accordingly enable the identification of appropriate benchmarks permitting performance improvement. They successfully differentiate between specialized and balanced DMUs and thus allowing the clustering of similar DMUs. This work shows that Balance is not only a theoretical concept but an instrument that yields useful insights in practice solving real life problems.

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T�tulo: Balance Measurement Methods in Data Envelopment Analysis, Concept, Models and Applications
Editor: Verlag Dr. Kovac, Hamburg
Fecha de publicaci�n: 2014
Idioma: Ingl�s
ISBN 10: 3830080638
ISBN 13: 9783830080633
Encuadernaci�n: Softcover
Edici�n: 1. Auflage.
Estado: neu

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Sinopsis

Data Envelopment Analysis (DEA) is a benchmarking tool that evaluates the relative efficiency by comparing peer decision making units (DMUs) which transform varying quantities of the same set of inputs into varying amounts of the same set of outputs. The efficiency score is defined as the ratio of the weighted sum of outputs to the weighted sum of inputs. Input and output weights are not a priori specified but determined model endogenously. Consequently each DMU is free to choose the optimal set of weights that maximizes its efficiency score, showing itself in the most favorable light. This total flexibility of weights may lead to disputable results. It could happen that the efficiency score will be given by the ratio of only one single input and one single output. It follows that the weights of the remaining inputs and outputs are reduced to zero, thus neglecting or ignoring inputs and outputs relative to which the evaluated DMU performs poorly. This weakens DEA assuming that inputs and outputs were chosen because of their relevance. This is particularly inconvenient for business cases in which balance is primordial, whereby DMUs target to perform well relative to all indicators. With regard to balance two different approaches consisting of different methods can be distinguished in the DEA literature. The balance enforcement approach takes the balance into account by means of weights restrictions whereas the balance measurement approach introduces balance as an additional performance indicator complementary to the efficiency score. This work extensively presents, analyzes and compares balance measuring methods applying them on real life applications. It results typical model's characteristics, properties and limitations from which managerial insights are deduced. Indeed, balance measuring methods offer insights about the strategy followed by DMUs and accordingly enable the identification of appropriate benchmarks permitting performance improvement. They success ...

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Der Wissenschaftsverlag Dr. Kova? wurde 1982 gegr�ndet und ist ein Fachverlag f�r wissenschaftliche Literatur. Seit mehr als 40 Jahren verlegen Wissenschaftler/innen aus unterschiedlichsten Fachbereichen bei uns. Das Gros der mehr als 12.400 Forscher/innen, die wir verlegen, stammt von Universit�ten im deutschsprachigen Raum.

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