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Erschienen in: Journal of Business Economics 9/2015

01.12.2015 | Original Paper

DEA efficiency of German savings banks: evidence from a goal-oriented perspective

verfasst von: Heinz Ahn, Minh Hanh Le

Erschienen in: Journal of Business Economics | Ausgabe 9/2015

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Abstract

We provide one of very few Data envelopment analysis efficiency studies of the German savings banks, thereby contributing evidence on the credit of their business model. This model distinguishes itself by the ultimate purposes to ensure public access to financial services and to support regional economies. To capture the respective goal set of the German savings banks, we propose a framework incorporating rationality concepts of decision making to derive appropriate performance criteria. On this basis, the 2006–2011 analysis reveals the active role of the savings banks in stabilizing the German economy during the financial crisis 2008–2009. The results also suggest that the banks are more efficient in fulfilling their public mandate than in generating profit. Furthermore, a stable scale efficiency pattern is observed, particularly showing that larger banks are experiencing notable decreasing returns to scale.

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Journal of Business Economics

From January 2013, the Zeitschrift für Betriebswirtschaft (ZfB) is published in English under the title Journal of Business Economics (JBE). The Journal of Business Economics (JBE) aims at encouraging theoretical and applied research in the field of business economics and business administration, promoting the exchange of ideas between science and practice.

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Fußnoten
1
More details about the framework and its application can be found in Le and Ahn (2014).
 
2
The decision making criteria represent different goal systems which direct how decisions should be made. In this study, “decision making criteria” is used as a collective term for values, goals, performance objectives and performance factors which will be clarified in the following.
 
3
The construction of value functions of input and output factors to operationalize objectives corresponds with the underlying idea of a generalized DEA approach proposed by Dyckhoff and Allen (2001).
 
4
Non-interest expenses = personnel expenses + other operating expenses. It is acknowledged here that a possible contradiction in the models may arise since the number of employees has been above selected as the proxy to illustrate objectives for maximizing. We tried to diminish the resulted shortcoming by not directly taking personnel expenses for minimizing. It can be interpreted that to be more efficient, banks are suggested to focus more on saving other operating expenses and interest expenses. With objectives to widen the branch networks and ensure banking service accessibility, it is more challenging and less desirable to cut the personnel expenses itself. If data is available, it is recommended that the number of branches can be a better proxy.
 
5
More details on the construction of value functions of input and output factors have been illustrated in Dyckhoff and Ahn (2010).
 
6
DEA results are sensitive in the way that when the number of performance criteria increase, ceteris paribus the proportion of DMUs rated as efficient as well as the average efficiency score of all DMUs increase accordingly. See Epstein and Henderson (1989) for an discussion on this issue.
 
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Metadaten
Titel
DEA efficiency of German savings banks: evidence from a goal-oriented perspective
verfasst von
Heinz Ahn
Minh Hanh Le
Publikationsdatum
01.12.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Journal of Business Economics / Ausgabe 9/2015
Print ISSN: 0044-2372
Elektronische ISSN: 1861-8928
DOI
https://doi.org/10.1007/s11573-015-0769-1

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