4. Findings
4.1 Efficiency Estimates
In this section, we present our findings, and provide a discussion of banking performance
over the test period. We calculated efficiency values with the objective of estimating input
usage efficiency (input orientation) and returns to scale (increasing or decreasing returns to
scale). Malmquist indices provide the components of total factor productivity as being made
up of technical efficiency and efficiency change. A mean value more than one indicates
improvement in performance, while a value less than one indicates a inefficiency. The indices
can be decomposed into technological change, interpreted as efficiency due from banks
adopting newer ways of doing things thus causing a frontier shift; and efficiency change,
which is due to management’s effort to secure higher efficiency (catch-up). The efficiency
change or catching-up effect is further decomposed into pure and scale efficiency changes to
identify the main sources of improvements/deteriorations in management performance of
banks. Table 2 presents the efficiency estimates from DEA efficiency measures and Malmquist productivity indices. By decomposing the results (TFP) into its components, we are able to make further conclusions about the efficiency performance.
4. Findings4.1 Efficiency EstimatesIn this section, we present our findings, and provide a discussion of banking performanceover the test period. We calculated efficiency values with the objective of estimating inputusage efficiency (input orientation) and returns to scale (increasing or decreasing returns toscale). Malmquist indices provide the components of total factor productivity as being madeup of technical efficiency and efficiency change. A mean value more than one indicatesimprovement in performance, while a value less than one indicates a inefficiency. The indicescan be decomposed into technological change, interpreted as efficiency due from banksadopting newer ways of doing things thus causing a frontier shift; and efficiency change,which is due to management’s effort to secure higher efficiency (catch-up). The efficiencychange or catching-up effect is further decomposed into pure and scale efficiency changes toidentify the main sources of improvements/deteriorations in management performance ofbanks. Table 2 presents the efficiency estimates from DEA efficiency measures and Malmquist productivity indices. By decomposing the results (TFP) into its components, we are able to make further conclusions about the efficiency performance.
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