Abstract
The nonparametric frontier methodology is applied to a sample of banks, where output levels are measured either by the number of accounts and their average size, or by the total balances of the accounts. The efficiency rankings of individual banks are found to depend substantially on our choice of output metric, whereas the estimated size of potential productivity improvements in the banking sector are less affected. The results on economies of scale are also largely unchanged.
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The refereeing process of this paper was handled through S. Grosskopf.
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Berg, S.A., Førsund, F.R. & Jansen, E.S. Technical efficiency of Norwegian banks: The non-parametric approach to efficiency measurement. J Prod Anal 2, 127–142 (1991). https://doi.org/10.1007/BF00156343
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DOI: https://doi.org/10.1007/BF00156343