This article examines for the first time the association between the efficiency of Greek banks and their share price performance. Our analysis consists of three parts. First, we calculate the annual share price returns of the banks for each year between 2001 and 2005. Then we use data envelopment analysis to estimate the efficiency of the banks between 2000 and 2005. Finally, we regress the annual share price returns over the annual change of efficiency while controlling for changes in banks' size and risk. We find that the average technical efficiency under constant returns to scale is 0.931 and increases to 0.977 under variable returns to scale, resulting in a scale efficiency of 0.953. The regression results indicate a positive and statistically significant relationship between annual changes in technical efficiency and stock returns, while changes in scale efficiency have no impact on stock returns.

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PurposeThe purpose of this paper is to examine the efficiency and productivity of a Greek bank's branches.Design/methodology/approachThe sample consists of 458 branches of a Greek commercial bank, operating in 13 regions of Greece over the period 2002‐2005, a total of 1,795 observations. Data envelopment analysis was used to explore the efficiency and productivity of the branches. Then, fixed and random effects models were used to determine the impact of internal and external factors on the efficiency and productivity scores.FindingsThe results indicate that the branches in the sample could have achieved improved overall performance during 2002‐2005. Also, that the inclusion of loan loss provisions as an input variable increases the efficiency score, but for the total factor productivity (TFP) change, the results are mixed. The second stage regressions indicate that both the logarithm of personnel and the logarithm of income per capita in the local market have a significant impact on efficiency, while the loans to total assets ratio has a significant impact on pure technical efficiency only. When the various productivity change measures were regressed over the explanatory variables, it was found that the logarithm of per capita gross fixed capital formation has a positive and statistically significant impact on all measures. Also, that the return on assets, the loans to deposit ratio, the logarithm of personnel, and the logarithm of income of per capita, all have a positive and statistically significant impact on overall efficiency change.Originality/valueThis paper is the first study on Greek branches which examines the impact of market conditions. It examines the impact of risk‐taking on the efficiency of the branches and examines the productivity growth of the branch network using the Malmquist TFP index.

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