Abstract
The objective of this paper is to examine productivity changes among Ghanaian banks. The Malmquist productivity index is employed to estimate total factor productivity changes and its components on a panel of 18 banks from 2003 to 2011. The results indicate that productivity growth was attributable to the catch‐up effect of efficiency changes. We also find productivity growth across three categories of bank size to be driven by efficiency changes. From a panel regression analysis, we identify size, concentration, income diversification and risk as the factors that explain productivity differences among Ghanaian banks. Recommendations for improving bank productivity are derived from the results. Copyright © 2015 John Wiley & Sons, Ltd.
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