The Impact of Public Debt on Fiscal Sustainability in Nigeria
DOI:
https://doi.org/10.63385/jemm.v2i2.406Keywords:
ARDL Co-Integration, Debt Overhang, Debt Servicing, Fiscal Sustainability, Public Debt, NigeriaAbstract
This paper systematically investigates the disaggregated effects of public debt on fiscal stability in Nigeria from 1980 to 2022, a period marked by structural adjustments, fiscal crises, oil price volatility, and changing debt management practices. After obtaining stationarity, data was analysed using the Autoregressive Distributed Lag (ARDL) approach. The results indicate that domestic debt, debt service payments, foreign reserves, currency rates, and private investment all contribute to macroeconomic instability. Foreign direct investment inflows improved fiscal stability in the long and short term. External debt, interest rates, and trade openness all have different immediate and long-term repercussions. Despite the fact that public borrowing is a crucial tool for promoting development, the results show that Nigeria's debt profile has been undermined by poor revenue capacity, ongoing fiscal deficits, governance issues, and inefficient use of borrowed funds, To reduce vulnerability to external shocks, the study suggests strengthening domestic revenue mobilization, prioritizing concessional borrowing, improving debt management transparency, increasing public investment efficiency, and diversifying the economy. These steps are critical for achieving sustainable debt management and ensuring that public borrowing contributes meaningfully to long-term economic growth.
References
[1] Shah, M., Khattak, A., 2024. Evaluating the efficacy of fiscal expenditure in Pakistan: The influence of trade openness and public debt levels. Migration Letters. 21(S6), 161–173.
[2] Tryson, Y., 2024. Fiscal policy and economic growth in Zambia. Economia Aziendale Online –Business and Management International Quarterly Review. 15(2), 329–340. DOI: https://doi.org/10.13132/2038-5498/15.2.329-340
[3] Mugobera, R., Mahebe, D., 2024. External debt and economic growth nexus in Sub-Saharan Africa: The role of institutional quality. Journal of Economics, Finance and Management Studies. 7(6), 3453–3462.
[4] Akingbade, U.A., Monkam, N., 2025. Causal links between public debt and inflation in sub-Saharan African countries. The Journal of Economic Asymmetries. 32, 1–19.
[5] Central Bank of Nigeria, 2023. CBN Annual Report and Statistical Bulletin. Central Bank of Nigeria: Abuja, Nigeria.
[6] Economic Intelligence Unit, 2023. Annual Report and Statistical Bulletin. Economic Intelligence Unit: Abuja, Nigeria.
[7] Debt Management Office, 2022. Annual Financial Report and Statistical Bulletin. Debt Management Office: Abuja, Nigeria.
[8] International Monetary Fund, 2022. A Reviews of Joint World Bank-IMF Debt Sustainability Analysis for Nigeria. International Monetary Fund: Washington, DC, USA.
[9] Kumar, D.D., Mallika, S., Mamun, S.M., et al., 2025. Dynamic interactions among public debt, governance, and sustainable development-insights from noble GMM-PVAR analysis. Humanities and Social Sciences Communications. 12, 1598. DOI: https://doi.org/10.1057/s41599-025-05742-7
[10] Samson, E., Osaro, O., 2025. Fiscal policy burden accruing from public debt accumulation: theoretical effect on growth and empirical evidence. Public Sector Economics. 49(1), 129–152.
[11] Gilbert, D.I., Raymond, O.A., 2024. Public debt and sustainable economic growth in Nigeria. Research Journal of Finance and Accounting. 15(9), 62–75. DOI: https://doi.org/10.7176/RJFA/15-9-05
[12] Jerry, O.S., Rogers, O., Paul, M., et al., 2024. Public debt and macroeconomic stability among sub-Saharan African countries: A system GMM test approach. Cogent Economics & Finance. 12(1), 1–14.
[13] Sharaf, M.F., Shahen, A.M., Binzaid, B.A., 2024. Asymmetric and nonlinear foreign debt–inflation nexus in Brazil: Evidence from NARDL and Markov Regime Switching approaches. Economies. 12(1), 18.
[14] Yusuf, A., Mohd, S., 2021. The impact of government debt on economic growth in Nigeria. Cogent Economics & Finance. 9(1), 1946249. DOI: https://doi.org/10.1080/23322039.2021.1946249
[15] Binod, J., Gyan, M.A., 2025. The impact of public debt on economic growth and revenue generation in Nepal: An analysis from 1974/75 to present. Nepalese Journal of Management Research. 5(1), 89–98.
[16] Nouaili, M., 2025. The non-linear relationship between external debt and economic growth in African economies: The role of financial stability, investment, and governance quality. Economies. 13(10), 300.
[17] Munawar, M., Moniba, S., Atif, A.J., 2025. Asymmetric effect of public debt on inflation in Pakistan: A time series analysis. Advance Social Science Archive Journal. 4(2), 350–365.
[18] Al-Qalawi, U.R., Arqam, A.R., 2024. Debt puzzle: A comparative analysis of public debt’s impact on production efficiency across OECD countries. Economies. 12(7), 161.
[19] Yusuf, A., Mohd, S., 2023. Investigating the asymmetric impact of public debt on economic growth in Nigeria. Journal of the Knowledge Economy. 15, 9452–9481. DOI: https://doi.org/10.1007/s13132-023-01362-1
[20] Abubakar, A.B., McCausland, W.D., Theodossiou, I., 2025. Do debt relief and fiscal rules improve public debt sustainability? The experience of sub-Sahara African countries. Journal of Policy Modeling. 47(1), 166–186.
[21] Ciaffi, G., Deleidi, M., Di Domenico, L., 2024. Fiscal policy and public debt: Government investment is most effective to promote sustainability. Journal of Policy Modeling. 46(6), 1186–1209. DOI: https://doi.org/10.1016/j.jpolmod.2024.07.002
[22] Abindaw, G.A., Nabieu, M.M., David, M., 2023. Public debts, fiscal balance and sustainability: What can African governments learn from debt sustainability models? Cogent Economics & Finance. 11(2), 2235827. DOI: https://doi.org/10.1080/23322039.2023.2235827
[23] Patenema, O., 2022. The impact of public debt on the sustainability of the economy. Journal of International Scientific Publications. 16(1), 334–350.
[24] Enock, W.N.B., Ibrahim, M., Edward, B., 2021. Public debt sustainability Estimating the fiscal reaction function for Uganda (1981/82–2016/17). Tanzanian Economic Review. 11(1), 1–34.
[25] Saibu, O.M., 2018. Public spending, fiscal sustainability and macroeconomic performance in Nigeria. NDIC Quarterly. 33(3&4), 33–48.
[26] Yusuf, A., Mohd, S., 2021. Asymmetric impact of fiscal policy variables on economic growth in Nigeria. Journal of Sustainable Finance and Investment. 1–22. DOI: https://doi.org/10.1080/20430795.2021.1927388
[27] Yusuf, A., Mohd, S., 2023. Nonlinear impact of public debt on economic growth of Nigeria. SN Business and Economics. 3(4), 1–31.
[28] Oladotun, R.O., Olanipekun, E.F., 2024. Macroeconomic effects of public debt in Nigeria. International Journal of Management, Economics and Social Sciences. 13(1–2), 25–40.
[29] Yusuf, A., 2023. Dynamic effects of energy consumption, economic growth, international trade and urbanization on environmental degradation in Nigeria. Energy Strategy Reviews. 50, 101228.
[30] Yusuf, A., Mohd, S., 2021. The impact of fiscal policy variables on private investment in Nigeria. African Finance Journal. 23(1), 41–55.
[31] Phillips, P., Perron, P., 1988. Testing for a unit root in time series regression. Biometrica. 75(2), 335–346.
[32] Dickey, D.A., Fuller, W.A., 1979. Distribution of the estimators for autoregressive time-series with a unit root. Journal of the American Statistical Association. 74(366), 427–431.
[33] Michael, O.B., 2024. Exchange rate fluctuations and domestic investment. Evidence from Ghana. European Journal of Economic and Financial Research. 8(1), 166–181.
[34] Pesaran, M.H., Shin, Y., Smith, R.J., 2001. Bounds Testing Approaches to the Analysis of Long-Run Relationship. University of Cambridge: Cambridge, UK.
[35] Yusuf, A., 2023. Re-evaluating the linkage between trade openness and economic growth in Nigeria. SN Business and Economics. 3, 125. DOI: https://doi.org/10.1007/s43546-023-00511-7
[36] Osevwe-Okoroyibo, E.E., Akpokerere, O.E., Onatuyeh, A.E., 2024. External debt and gross domestic product in Nigeria and Ghana. African Banking and Finance Review Journal. 9(9), 162–171.
[37] Kabemba, C., Kabwe, M., 2024. Effects of public debt on economic growth: An empirical evidence from Zambia (2011–2021). American Journal of Industrial and Business Management. 14(2), 165–183.
[38] World Bank, 2022. International Debt Statistics 2022. World Bank: Washington, DC, USA.
[39] Godwin, E.E., 2024. Debt dynamics and fiscal sustainability in Nigeria. AKSU Journal of Administration and Corporate Governance. 4(3), 329–350.
[40] Yusuf, A., 2023. A systematic review of investment indicators and economic growth in Nigeria. Humanities & Social Sciences Communications. 10, 500. DOI: https://doi.org/10.1057/s41599-023-02009-x
[41] Kashif, M., Sridharan, P., Thiyagarajan, S., 2017. Impact of economic growth on international reserve holdings in Brazil. Brazilian Journal of Political Economy. 37(3), 605–614.
[42] Kyriazis, N.A., 2024. Food inflation examination through the dynamic nexus between olive oil and substitutes. Economies. 12(3), 57.
[43] Abdifatahi, D.H., 2024. The impact of high government debt on economic development in Somalia. Multidisciplinary Journal of Horseed International University. 2(1), 171–196.
[44] El-Naser, A., 2023. Public debt, institutional quality and economic growth in EU countries in the aftermath of COVID-19 and war-induced crisis. Journal of Smart Economic Growth. 8(3), 44–67.
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