Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/19757
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dc.contributor.authorKoetter, Michaelen_US
dc.contributor.authorKarmann, Alexanderen_US
dc.contributor.authorFiorentino, Elisabettaen_US
dc.date.accessioned2009-01-28T16:02:56Z-
dc.date.available2009-01-28T16:02:56Z-
dc.date.issued2006en_US
dc.identifier.urihttp://hdl.handle.net/10419/19757-
dc.description.abstractWe investigate the consistency of efficiency scores derived with two competing frontiermethods in the financial economics literature: Stochastic Frontier and DataEnvelopment Analysis. We sample 34,192 observations for all German universalbanks and analyze whether efficiency measures yield consistent results according tofive criteria between 1993 and 2004: levels, rankings, identification of extreme performers,stability over time and correlation to standard accounting-based measuresof performance. We find that non-parametric methods are particularly sensitive tomeasurement error and outliers. Furthermore, our results show that accounting forsystematic differences among commercial, cooperative and savings banks is importantto avoid misinterpretation about the status of efficiency of the total bankingsector. Finally, despite ongoing fundamental changes in Europe?s largest bankingsystem, efficiency rank stability is very high in the short run. However, we also findthat annually estimated efficiency scores are markedly less stable over a period oftwelve years, in particular for parametric methods. Thus, the implicit assumption ofserial independence of bank production in most methods has an important influenceon obtained efficiency rankings.en_US
dc.language.isoengen_US
dc.publisher|aDeutsche Bundesbank |cFrankfurt a. M.-
dc.relation.ispartofseries|aDiscussion Paper, Series 2: Banking and Financial Supervision |x2006,10en_US
dc.subject.jelL25en_US
dc.subject.jelG21en_US
dc.subject.jelD24en_US
dc.subject.ddc330en_US
dc.subject.keywordCost Efficiencyen_US
dc.subject.keywordBanksen_US
dc.subject.keywordStochastic Frontier Approachen_US
dc.subject.keywordData Envelopment Analysisen_US
dc.subject.stwBanken_US
dc.subject.stwKostenfunktionen_US
dc.subject.stwTechnische Effizienzen_US
dc.subject.stwData-Envelopment-Analyseen_US
dc.subject.stwSchätzungen_US
dc.subject.stwDeutschlanden_US
dc.titleThe cost efficiency of German banks: a comparison of SFA and DEAen_US
dc.typeWorking Paperen_US
dc.identifier.ppn520781538en_US
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungen-
dc.identifier.repecRePEc:zbw:bubdp2:5157-

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