ELECTRICITY INFRASTRUCTURE FINANCING AND INCOME INEQUALITY IN NIGERIA

  • BANKSHARON NWANERI Institute of International Trade and Development & Department of Economics, University of Port Harcourt
  • EMEKA NKORO Institute of International Trade and Development & Department of Economics, University of Port Harcourt
Keywords: Government Capital Electricity Expenditure, Government Recurrent Electricity Expenditure, Governance Effectiveness, Income Inequality

Abstract

This study investigated the impact of electricity infrastructure financing on income inequality in Nigeria. The autoregressive distributed lag (ARDL) model was applied to annual data spanning from 1990 to 2024. Further, the study extended this investigation by disaggregating electricity infrastructure financing into government capital investment in electricity and government recurrent electricity expenditure, controlling for the role of governance effectiveness. The study applied the unit root test to examine the stationary of the variables. The study also found evidence for long-run relationship among electricity infrastructure financing and income inequality by applying the bounds test. The findings of the study from the long run results indicate that government capital electricity expenditure has negative significant impact on income inequality in Nigeria. In addition, the study found evidence of negative and significant impact of government recurrent electricity expenditure on income inequality in the long run while the government effectiveness had a negative but insignificant impact on income inequality. In the short run dynamic, government capital expenditure had a negative and insignificant impact on income inequality in Nigeria. The study concluded that long-term public investment and operational financing for the electricity sector has a significant effect in addressing income inequality in Nigeria, and targeted power sector spending is an important instrument for economic inclusion. The study recommended that among others that the federal government should increase significantly its annual budgetary allocation for capital investment in the power sector (generation, transmission and distribution) and ensure that funds are timely disbursed to provide access, particularly in low-income and rural communities.

Downloads

Download data is not yet available.

References

Adamu, A. B., Obansa, J. S., Iorember, P. T., & Usman, O. (2025). Economic growth effects of energy infrastructure and human capital in a resource-rich nation: Accounting for the moderating role of oil price uncertainty. International Journal of Energy Economics and Policy, 15(4), 472–480. https://doi.org/10.32479/ijeep.19867

Adegbemi, B. O., Adegbemi, O. O., & Olalekan, A. J.-S. (2013). Energy consumption and Nigerian economic growth: An empirical analysis. European Scientific Journal, 9(4), 25–40.

Adekunle, A. S., Akinbami, J. F., & Olanrewaju, O. E. (2020). Electricity consumption and economic growth nexus in selected African countries: A comparative analysis. Energy Reports, 6, 841–849.

Adeleye, B. N., Gershon, O., Ogundipe, A., Owolabi, O., Ogunrinola, I., & Adediran, O. (2020). Comparative investigation of the growth-poverty-inequality trilemma in Sub-Saharan Africa and Latin American and Caribbean countries. Heliyon, 6(12), Article e05631.

Akinlo, A. E. (2008). Energy consumption and economic growth: Evidence from 11 Sub-Saharan African countries. Energy Economics, 30(5), 2391-2400.

Akinyemi, T., & Jung, S. (2025). Power plants improve local residents' wealth: A case study of Nigeria. Energy Economics, 142, 108173. https://doi.org/10.1016/j.eneco.2024.108173

Asafu-Adjaye, J. (2000). The relationship between energy consumption, energy prices and economic growth: Time series evidence from Asian developing countries. Energy Economics, 22(6), 615-625.

Aschauer, D. A. (1989). Is public expenditure productive? Journal of Monetary Economics, 23(2), 177–200.

Awe, E. O., Ugbaka, M. A., Abdulkadir, Y. Y., & Idoko, S. A. (2022). Electricity infrastructure and economic growth in Nigeria: Impact analysis. CJEAS, 3(2), 1-17.

Babatunde, S. A. (2018). Government spending on infrastructure and economic growth in Nigeria. Economic Research-Ekonomska Istraživanja, 31(1), 997–1014.

Babatunde, M. A., & Shuaibu, M. I. (2011). The demand for residential electricity in Nigeria. Pakistan Journal of Applied Economics, 21(1-2), 1-13.

Barro, R. J. (1990). Government spending in a simple model of endogenous growth. Journal of Political Economy, 98(5, Part 2), S103–S125.

Bilan, Yu., Mishchuk, H., Samoliuk, N., & Yurchyk, H. (2020). Impact of income distribution on social and economic well-being of the state. Sustainability, 12(1), 429.

Calderón, C., & Servén, L. (2010). Infrastructure and economic development in Sub-Saharan Africa. Journal of African Economies, 19(Suppl. 1), i13–i87. https://doi.org/10.1093/jae/ejp022

Cosimo, M., Lorenzo, G., & Marco, M. (2015). Wagner's law and Peacock and Wiseman's displacement effect in European Union countries: A panel data study. International Journal of Economics and Financial Issues, 5(3), 812-819.

Emeka, N., Nenubari, I., & Godsgrace, I. J. (2019). Energy consumption and economic growth in Nigeria: A revisit of the energy-growth debate. Bussecon Review of Social Sciences, 1(2), 1–9.

Foster, V., & Briceño-Garmendia, C. (Eds.). (2010). Africa's infrastructure: A time for transformation. World Bank.

Fuso Nerini, F., Tomei, J., To, L. S., Bisaga, I., Parikh, P., Black, M., Borrion, A., Spataru, C., Castán Broto, V., Anandarajah, G., Milligan, B., & Mulugetta, Y. (2018). Mapping synergies and trade-offs between energy and the Sustainable Development Goals. Nature Energy, 3(1), 10–15.

Hindrizia, J., & Myles, G. D. (2005). Intermediate public economics. MIT Press.

IMF (2024), World Economic Outlook Database, and IMF (2020), Nigeria: Staff Report for the 2020 Article IV Consultation.

Isah, U. S., Aiyedogbon, J. O.-C., & Aigbedion, M. (2024). Impact of electricity power consumption on economic growth in Nigeria: A threshold regression analysis approach. International Journal of Research and Innovation in Social Science, 8(8), 64–76.

Iwayemi, A. (1994). Energy poverty on Africa (workshop proceedings, DFID, Abuja).

Iwayemi, A. (2008). Nigeria's dual energy problems: Policy issues and challenges. International Association for Energy Economics, 53(1), 17–21.

Khobai, H. (2017). Electricity consumption and economic growth in South Africa. Paper presented at the III Iberometrics, Cape Town, March 23-24.

Kraft, J., & Kraft, A. (1978). On the relationship between energy and GNP. Journal of Energy and Development, 3(2), 401–403.

Maciulyte-Sniukiene, A., & Butkus, M. (2022). Does infrastructure development contribute to EU countries' economic growth? Sustainability, 14(9), Article 5610.

Magazzino, C., Giolli, L., & Mele, M. (2015). Wagner's law and Peacock and Wiseman's displacement effect in European Union countries: A panel data study. International Journal of Economics and Financial Issues, 5(3), 812–819.

National Bureau of Statistics. (2020). 2019 poverty and inequality in Nigeria: Executive summary. https://nigerianstat.gov.ng/elibrary

Nteegah, A., & Ihejirika, P. (2024). Does energy access reduce unemployment? An empirical evidence from Nigeria. International Journal of Research and Innovation in Social Science, 8(12), 868–880. https://doi.org/10.47772/IJRISS.2024.8120072

Nyame-Baafi, K., Darmoe, J. K. A., Ohemeng, W., & Amenah, M. A. (2025). Assessing the effect of energy poverty on health outcomes: Insights from Ghana. BMC Public Health, 25, Article 2419. https://doi.org/10.1186/s12889-025-23602-6

Olusegun, K. L., Salaudeen, N. H., & Adeleke, A. A. (2025). Impact of electricity services on unemployment in Nigeria. Journal of Economics and Allied Research, 10(1), 468–478.

Olusegun, O. A. (2008). Electricity consumption and economic growth in Nigeria: A bounds testing approach. Journal of Business Management and Applied Economics, 2(4), 1–14.

Ozturk, I. (2010). A literature survey on energy-growth nexus. Energy Policy, 38(1), 340–349.

Payne, J. E. (2010). Survey of the international evidence on the causal relationship between energy consumption and growth. Journal of Economic Studies, 37(1), 53–95.

Samuelson, P. A. (1955). Diagrammatic exposition of a theory of public expenditure. The Review of Economics and Statistics, 37(4), 350–356.

Stern, D. I. (2000). A multivariate cointegration analysis of the role of energy in the US macroeconomy. Energy Economics, 22(2), 267–283.

Stern, D. I. (2004). Economic growth and energy. In C. J. Cleveland (Ed.), Encyclopedia of Energy (Vol. 2, pp. 35-51). Elsevier.

Todaro, M. P., & Smith, S. C. (2020). Economic development. Pearson.

Uchechukwu, E., & Ugwuoke, C. C. (2024). Analysis of population growth, carbon emission, and renewable energy nexus in Nigeria. Journal of Economics and Allied Research, 9(3), 112–125.

World Bank. (2020). Private participation in infrastructure (PPI) project database. World Bank Group.

World Bank. (2022). Nigeria poverty assessment 2022: A better future for all Nigerians (Press release No. 2022/052/AFW).

World Bank. (2022). World development indicators. https://databank.worldbank.org/source/world-development-indicators

Published
2026-10-18
How to Cite
NWANERI, B., & NKORO, E. (2026). ELECTRICITY INFRASTRUCTURE FINANCING AND INCOME INEQUALITY IN NIGERIA. GPH-International Journal of Business Management, 9(9), 74-94. https://doi.org/10.5281/zenodo.23455713