Measuring Total Efficiency Index of Production Factors in the Selected Banks of the Interest -Free Banking System in Iran

The purpose of this study was to investigate the efficiency (productivity and effectiveness) of selected banks in the interest -free banking system of Iran. The study’s presupposition was that interest -free banking system is an introduction to Islamic banking. In terms of content, the research method in this study is developmental, and in terms of data collection, it is analytical-descriptive and survey-based. The data collection method is documentive, library – based and questionnaire. In this study, Delphi method has been used to measure the efficiency index and the approach to measuring the input and output of Islamic banks. Using the numerical index approach, the trend of the total index of production factors in commercial banks is measured with and without considering efficiency. Using the data envelopment analysis (vrs model), the relative efficiency of selected banks in two areas (value added output, total revenue output) is measured. The findings of this study indicate that the average total productivity growth of all production factors without efficacy indices was higher than the productivity index with efficiency indices.