Investigating the Impact of Income Diversification Strategies on Efficiency in Banks Admitted to the Tehran Stock Exchange Between 2011 and 2021

Document Type : Research Article


1 Department of Economics, Arak Branch, Islamic Azad University, Arak, Iran

2 Faculty of Economic and Social Sciences, Bu-Ali Sina University, Hamedan, Iran


The banking industry is one of the most important pillars of the economy of any country, which plays a decisive role in the economic development and growth of countries due to the provision of various financial and credit services. With the globalization of the banking industry, it is very important to use income diversification strategies to improve value and efficiency. Using the data and information obtained from the financial statements of banks, this research has investigated the effect of income diversification strategies on efficiency in banks admitted to the Tehran Stock Exchange. The statistical population of this research includes all the banks admitted to the Tehran Stock Exchange during the period between 2011 and 2021, and 10 banks were selected as a statistical sample using the targeted elimination method. In this research, the data envelopment analysis (DEA) approach was used to measure efficiency, and the autoregressive model approach with distributed intervals (ARDL) was used to estimate the research model. The present research findings showed that the strategy of income diversification (interest and non-interest) both in the short term and in the long term has a positive and significant effect on the efficiency of banks admitted to the Tehran Stock Exchange.


Main Subjects

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