Return on Equity in Albanian Banks: A Data-Driven Analysis Using XGBoost
Abstract
This paper estimates the determinants of bank profitability in Albania with respect to return on equity. This study will employ annual reports from eleven banks in Albania covering the period 2014 to 2023, supplemented by extra sources from the Albanian Association of Banks and the Bank of Albania. Data analyzed at a great level of detail using Python. It evaluates an integrated conceptual framework of the influence of financial metrics, institutional infrastructure, and customer service channels on RoE. An XGBoost regression model is applied to predict RoE since this algorithm has advanced ensemble learning capabilities in refining predictions by iterative error corrections. The model is fine-tuned for Mean Squared Error minimization and performs very well on the training data, as evidenced by an R² score of 0.9999. The model slightly overfits, as can be indicated by the lower performance metrics on test data: MSE of 31.8768 and an R² score of 0.6024. Concretely, number of outlets, investments in securities, and debit card issuance are the variables most influencing RoE, as can be inferred from the importance analysis. This paper contributes to the literature with useful insights into financial performance and operational dynamics in Albanian banks, evidencing variables that play a significant role in profitability and, therefore, supply scope for further research and model improvement.
References
[2] Almaskati, Nawaf. 2022. The Determinants of Bank Profitability and Risk: A Random Forest Approach. Cogent Economics & Finance, 10 (1): 1–15. DOI: https://doi.org/10.1080/23322039.2021.2021479.
[3] Arbenita Kosumi, and Lutfi Zharku. 2024. Bank-Specific, Economic and Legal Determinants of Profitability in the Republic of North Macedonia. Access to Justice in Eastern Europe, 7(2): 212–33. DOI:https://doi.org/10.33327/ajee-18-7.2-a000209.
[4] Assfaw, Abdu Mohammed. 2020. The Determinants of Capital Structure in Ethiopian Private Commercial Banks: A Panel Data Approach. Journal of Economics, Business, & Accountancy Ventura, 23 (1). DOI:https://doi.org/10.14414/jebav.v23i1.2223
[5] Chand, Shasnil, Ronald Kumar, Peter Stauvermann, and Muhammad Shahbaz. 2024. Determinants of Bank Profitability: Do Institutions, Globalization, and Global Uncertainty Matter for Banks in Island Economies? The Case of Fiji. Journal of Risk and Financial Management, 17(6): 218–40. DOI:https://doi.org/10.3390/jrfm17060218
[6] Elisa, Menicucci, and Paolucci Guido. 2016. Factors Affecting Bank Profitability in Europe: An Empirical Investigation. African Journal of Business Management, 10 (17): 410–20. DOI:https://doi.org/10.5897/ajbm2016.8081
[7] Islam, Shafiqul, and Md Shohel Rana. 2019. Determinants of Bank Profitability: Evidence from Commercial Banks of Bangladesh. Journal of Asian Business Strategy, 9 (2): 174–83. DOI:https://doi.org/10.18488/journal.1006.2019.92.174.183.
[8] Kumar Aspal, Parvesh, Sanjeev Dhawan, and Afroze Nazneen. 2019. International Journal of Economics and Financial Issues Significance of Bank Specific and Macroeconomic Determinants on Performance of Indian Private Sector Banks. International Journal of Economics and Financial Issues, 9 (2): 168–74. DOI:https://doi.org/10.32479/ijefi.7727.
[9] Mirović, Vera, Branimir Kalaš, Nada Milenković, Jelena Andrašić, and Miloš Đaković. 2024. Modelling Profitability Determinants in the Banking Sector: The Case of the Eurozone. Mathematics, 12 (6): 897. DOI:https://doi.org/10.3390/math12060897.
[10] Muchtar, Susy, Adler Haymans Manurung, and Farah Margaretha. 2021. Determinant of Bank Risk with Bank Scale as Moderating Variable in ASEAN. International Journal of Science and Society, 3 (3): 150–69. DOI: https://doi.org/10.54783/ijsoc.v3i3.362
[11] Qehaja-Keka, Vese, Skender Ahmeti, and Muhamet Aliu. 2023. Bank Profitability Determinants: Evidence from Kosovo and Albania. Journal of Liberty and International Affairs, 9 (2): 297-11. DOI:https://doi.org/10.47305/JLIA2392370qk
[12] Raiter, Omri. 2021. Macro-Economic and Bank-Specific Determinants of Credit Risk in Commercial Banks. Empirical Quests for Management Essences, 1 (1): 36-50. Available at: https://researchberg.com/index.php/eqme/article/view/28
[13] Serwadda, Isah. 2018. Determinants of Commercial Banks’ Profitability. Evidence from Hungary. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 66 (5): 1325–35. DOI:https://doi.org/10.11118/actaun201866051325
[14] Tafirei Mashamba, and Chisinga N Chikutuma. 2023. Determinants of Bank Profitability: Evidence from the Emerging Economy. Corporate and Business Strategy Review, 4 (4, special issue): 310–23. DOI:https://doi.org/10.22495/cbsrv4i4siart12
[15] Titko, Jelena, Viktorija Skvarciany, and Daiva Jurevičienė. 2015. Drivers of Bank Profitability: Case of Latvia and Lithuania. Intellectual Economics, 9 (2): 120–29. DOI: https://doi.org/10.1016/j.intele.2016.02.003
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