Theoretical Paper
Journal of the Operational Research Society advance online publication 28 October 2009; doi: 10.1057/jors.2009.114
A bootstrap approach to analyse productivity growth in European banking
C Murillo-Melchor1, J M Pastor2 and E Tortosa-Ausina3
- 1Universidad de Cantabria, Cantabria, Spain
- 2Universitat de València and Ivie, València, Spain
- 3Universitat Jaume I and Ivie, Castelló, Spain
Correspondence: E Tortosa-Ausina, Departament d' Economia, Universitat Jaume I, Campus del Riu Sec, Castelló 12071, Spain. E-mail: tortosa@uji.es
Received January 2008; Accepted August 2009; Published online 28 October 2009.
Abstract
This paper analyses productivity growth for European banks over the 1995–2001 period. In contrast to previous literature, our study covers the majority of current European Union (EU) countries—all except Greece and those joining the EU in 2004. We also use resampling methods so as to gain statistical precision, which turns out to be especially important due to the limitations of the database. In order to be consistent, we use additional nonparametric methods to disentangle why productivity differentials might exist. Results show that productivity growth has occurred in most countries, mainly due to improvements in production possibilities. The bootstrap analysis yields further evidence given that for many firms and countries productivity growth or decline is not statistically significant. The two-stage analysis provides some extra insights, suggesting that the relevance of environmental variables found in other studies focusing on efficiency could be lessened when focusing on productivity.
Keywords:
bank, bootstrap, Malmquist productivity index




