oa Journal of Economic and Financial Sciences - The influence of efficiency estimates on the financial ratios of South African listed banks
The purpose of this study is to determine the relationship between bank efficiency estimates, measured by Data Envelopment Analysis (DEA), and bank performance, measured by the financial ratios included in the Du Pont analysis. Annual financial statement reports were used to calculate the performance of listed banks on the JSE Limited over a ten-year period. This study is the first to use two unique DEA models: one focuses on the efficiency of the finance and investment activity, and the other on the efficiency of the operating activity of banks. The study found that the majority of significant relationships between efficiency estimates and financial ratios are negatively correlated. Further research is needed to explain this phenomenon. The practical implication of this study is that it indicates that an improvement in the DEA efficiency estimates will not necessarily result in better financial ratios. Therefore, both measurements should be used to evaluate different aspects of performance in order to stay competitive.
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