Internal and external factors affecting profitability: BIST bank index case

Banks play a crucial role in the development and growth of the country's economy due to their financial intermediation operations.Based on this idea, this paper evaluates the outputs of a panel data analysis application to determine the internal and external factors affecting the return on assets and return on equity of banks, in terms of their contribution to the Turkish financial system.In this study, 11 banks whose shares are traded at the Borsa Istanbul stock market were used as a sample, and the analyzed time window is from 2010 to 2023.In ferring from the analysis results, it is seen that the models established with both asset profitability and return on equity as dependent variables are statistically significant at the five percentage significance level, and in terms of the effect of the