An Analysis of the Determinants of Net Interest Margin of the Banking Sectors in Southeast European Countries

Todorović Andreja (), Jemović Mirjana () and Marinković Srđan ()
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Todorović Andreja: Innovation Center of the University of Niš, Serbia
Jemović Mirjana: University of Niš, Faculty of Economics, Serbia
Marinković Srđan: University of Niš, Faculty of Economics, Serbia

Economic Themes, 2024, vol. 62, issue 2, 185-202

Abstract: The paper analyzes the determinants of bank net interest margin in the selected Southeast European countries in the period from 2012 to 2021. The group includes the countries with similar socio-economic features and financial system. The aim of the paper is to identify the common determinants of net interest margin in the observed banking systems. Given the previous theoretical and empirical studies, the analysis relies on a set of data on macroeconomic and industry variables using the pooled ordinary least square (OLS) regression method, because the preliminary data analyses do not allow for the application of panel regression with fixed or random effects. The predictor variables in the model are: gross domestic product per capita, inflation, exchange rate, real interest rate, concentration, size, capitalization, liquidity of the banking sector and credit risk in the banking sector. Net interest margin (NIM) is used as a dependent variable. The results confirm that the model is statistically significant, and that exchange rate, real interest rate, concentration and size of the banking sector have a significant impact on the variation of the dependent variable. Significant variables also show the expected direction of influence on NIM trends. The growth of exchange rate, real interest rate, concentration and size of the banking sector goes hand in hand with an increase in bank net interest margin in the analyzed countries over the observed period, all other things being equal. The analysis does not confirm the influence of other predictors on NIM.

Keywords: net interest margin; banking industry; macroeconomic determinants; Southeast Europe; neto kamatna marža; bankarski sektor; makroekonomske determinante; Jugoistočna Evropa (search for similar items in EconPapers)
JEL-codes: E43 G21 (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:ecothe:v:62:y:2024:i:2:p:185-202:n:1004

DOI: 10.2478/ethemes-2024-0010

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