Journal
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
Volume 29, Issue 4, Pages 299-307Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0305-0483(01)00025-1
Keywords
data envelopment analysis; sales; service; shared resources; banking; efficiency; non-volume related activities
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Studies of bank branch performance have. to date, concentrated on obtaining a single perspective of efficiency. As the financial services industry has intensified, banks have increasingly engated in a proactive, differentiated and customer-based strategy in retail banking in which the sales component of the bank branch activity is emphasized. With the emerging sales culture within banks, as discussed earlier, there is a need to evaluate both sales and service performance. Cook et al. [12] have proposed a model to evaluate simultaneously the sales, service, and aggregate efficiencies of a bank branch. This model accounted for the fact that inputs, in particular resources, are often shared among these functions. In this paper, we extend the data envelopment analysis additive model using goal programming concepts. We thereby derive optimal efficiency scores while taking into account non-volume related activities, that is those involving resources that cannot be assigned to a specific input or output. Again, the proposed model derives an optimal split of the shared resources that maximizes the aggregate efficiency. (C) 2001 Elsevier Science Ltd. All rights reserved.
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