An enhanced DEA model for decomposition of technical efficiency in banking

Chih-Ching Yang ()

Annals of Operations Research, 2014, vol. 214, issue 1, 167-185

Abstract: Past studies about the application of data envelopment analysis (DEA) to banking performance often follow the concept of technical efficiency (TE) and/or the productivity defined by the TE. In this paper, we propose an enhanced DEA model, based on a modification of the directional distance function by simultaneously but disproportionately seeking the maximum expansion of each desirable output and contraction of each undesirable output for efficiency measurement, which allows us to decompose the TE into operating efficiency (OPE) and risk management efficiency (RME). The OPE characterizes the ability of a bank to expand the room for profits through its regular business activities, while the RME describes a bank’s ability in risk management activities for sustaining operations. To illustrate the usefulness of the proposed model, a case study of Taiwan’s domestic commercial banks is presented. The major findings are that operating inefficiency is the main source of technical inefficiency, although banks with a higher OPE generally also have a higher RME. Banks subordinate to financial holding companies are more efficient in both OPE and RME than stand-alone banks. Copyright Springer Science+Business Media, LLC 2014

Keywords: Technical efficiency; Efficiency decomposition; Data envelopment analysis; Banking (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (19)

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DOI: 10.1007/s10479-011-0926-z

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