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Effect of Non-Performing Loan Ratio and Loan-To-Deposit Ratio on The Stability of Quoted Deposit Money Banks in Nigeria

Ikegah, Leticia U., Ibrahim M., S.L. Mairafi

Abstract

Financial stability of deposit money banks is vital for economic development, given their central role in financial intermediation and capital mobilization. Over the years, the Central Bank of Nigeria has introduced several prudential measures, including non-performing loan ratio and loan-to-deposit ratio, however, despite these measures, the banking sector continues to face challenges. This study examined the effect of non-performing loan ratio and loan-to-deposit ratio on the stability of quoted deposit money banks in Nigeria. An ex post facto research design and a longitudinal panel approach. Census sampling was used to select 13 quoted banking institutions with consistent financial reports for the period 2015–2024, resulting in 130 bank-year observations. Secondary data were obtained from the banks’ audited annual reports, Nigerian Exchange Group filings and relevant regulatory publications. Bank stability was measured using the Z-score. The data were analysed using panel regression analysis. The Hausman specification test supported the fixed-effects model. The findings revealed that Non-performing loan ratio had a negative and significant effect on stability while Loan-to-deposit ratio had a positive and significant effect on financial stability deposit money banks in Nigeria. The study concluded that sound asset quality and prudent deposit-funded lending are essential to the stability of quoted DMBs in Nigeria. The study recommended improved credit appraisal and loan monitoring, timely recognition of impaired facilities, and balanced management of loan-to-deposit ratios.

Keywords

Bank stabilitynon-performing loansloan-to-deposit ratioprudential guidelinesquoted deposit money banksNigeria

References

Abdul-Rahman, A., & Ibrahim, M. (2024). Credit risk and financial stability of commercial banks in Sub-Saharan Africa. Journal of African Business, 25(3), 401–420. https://doi.org/10.53909/rms.07.02.0313 Adrian, T., & Shin, H. S. (2020). Financial intermediaries and monetary economics. In B. M. Friedman & M. Woodford (Eds.), Handbook of Monetary Economics (Vol. 3, pp. 601– 650). Elsevier. https://doi.org/10.1016/B978-0-444-53454-5.00012-6 Adusei, M. (2021). The impact of capital adequacy on bank profitability: Evidence from Sub- Saharan Africa. International Journal of Emerging Markets, 16(1), 135–154. Agyemang, F., & Mensah, K. (2024). Liquidity management and financial stability of commercial banks in Sub-Saharan Africa. Journal of African Business, 25(4), 512–531. Ahamed, M. M., & Mallick, S. K. (2023). Bank credit risk, financial stability and economic performance: Evidence from emerging economies. Research in International Business and Finance, 66, 102033. https://doi.org/10.1016/j.ribaf.2023.102033 Beck, T., Demirgüç-Kunt, A., & Levine, R. (2022). Financial institutions and markets across countries and over time: The updated financial development and structure database. World Bank Economic Review, 36(2), 334–349. https://doi.org/10.1596/1813-9450-4943 Central Bank of Nigeria. (2025). Prudential guidelines for deposit money banks in Nigeria. https://www.cbn.gov.ng Demirgüç-Kunt, A., Beck, T., & Honohan, P. (2023). Finance for development: The role of banking systems in economic growth and financial stability (Updated ed.). World Bank Publications. https://www.worldbank.org European Banking Authority. (2025). Risk dashboard: Q2 2025. https://www.eba.europa.eu Financial Stability Board. (2025). Global monitoring report on non-bank financial intermediation 2025. https://www.fsb.org Gambacorta, L., & Shin, H. S. (2018). Why bank capital matters for stability. Economic Policy Review, 24(1), 1–18. https://www.newyorkfed.org/medialibrary International Monetary Fund. (2024). Global financial stability report: Safeguarding financial resilience amid high interest rates. https://www.imf.org/en/Publications/GFSR Kim, J., & Lee, S. (2024). Loan-to-deposit ratio and bank stability: Evidence from listed commercial banks in Asia. Journal of Banking Regulation, 25(2), 184–201. https://www.scholarexpress.ne Lee, J., & Kim, S. (2023). Liquidity management, loan-to-deposit ratio and bank performance: Evidence from Asian commercial banks. Journal of Asian Finance, Economics and Business, 10(4), 145–156. https://doi.org/10.13106/JAFEB.2023.VOL10.NO4.0145 Mairafi, S. L.; Mohammed, I. G. & Yusuf, B. A. (2019). Liquidity and Banks stability in Nigeria: A review. Journal of Management Sciences 17(3), 52-61. ISSN NO:1117-4668. Udenwa, T. A.; Abdul, Z. H. & Akpa, D.O. (2023). Effect of prudency guidelines on Nigeria deposit money banks performance. Journal of Business Development and Management Research, 2(2), 1-14. Udenwa, T. A.; Suberu, A. A. & Jacob Z. (2023). Effect of liquidity risk on the financial performance of quoted deposit money banks in Nigeria. International Journal of Economics, Business and Management Research. 7(2). 54-69. 10.51505/IJEBMR.2023.7705. World Bank. (2025). Global Financial Development Report 2025: Finance for Growth. World Bank. https://www.worldbank.org.

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