Efficience coût
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European Journal of Operational Research journal homepage: www.elsevier.com/locate/ejor
Innovative Applications of O.R.
Technical and allocative efficiency in European banking
Sophocles N. Brissimis a,b, Manthos D. Delis c,*, Efthymios G. Tsionas d a Economic Research Department, Bank of Greece, 21 E. Venizelos Ave., Athens 10250, Greece Department of Economics, University of Piraeus, 80 Karaoli & Dimitriou St., Piraeus 18534, Greece c Department of Economics, University of Ioannina, Ioannina 45110, Greece d Department of Economics, Athens University of Economics and Business, 76 Patission St., Athens 10434, Greece b a r t i c l e
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This paper specifies an empirical framework for estimating both technical and allocative efficiency using the translog cost-share system, thus providing a solution to the issue known in the literature as the Greene problem. The model is applied to a large panel of European banks and the results are compared with those of a model that does not include an allocative inefficiency term and also with those obtained by using a consistent Bayesian technique. Our results suggest that models which include only technical efficiency, significantly overestimate it, while parameter estimates from the model that includes both technical and allocative efficiency are very close to the ones obtained from the Bayesian approach, thus enhancing our confidence in the proposed methodology. Finally, the fact that allocative efficiency of banks in our sample improves more than technical efficiency underlines the importance of including an allocative inefficiency component in parametric efficiency models. Ó 2009 Elsevier B.V. All rights reserved.
Article history: Received 26 January 2009 Accepted 25 September 2009 Available online 2 October 2009 Keywords: Technical and allocative efficiency Translog cost function Maximum