Can financial inclusion reduce income inequality? Evidence from Nigeria
DOI:
https://doi.org/10.33003/fujafr-2026.v4i1.289.199-212Keywords:
Education, Financial inclusion, Income inequality, Macroeconomic variablesAbstract
Purpose: This study examines the effect of financial inclusion on income inequality in Nigeria. Specifically, it evaluates whether improvements in financial access, alongside selected macroeconomic variables, significantly influence the level of income inequality in the country.
Methodology: The study adopts an ex post facto research design using annual time-series data for Nigeria. The population of the study comprises all annual macroeconomic observations relevant to financial inclusion and income inequality in Nigeria within the study period. Based on data availability and consistency across sources, the study uses annual observations covering 1985–2020. Data were obtained from the World Development Indicators, Central Bank of Nigeria Statistical Bulletin, Federal Ministry of Education reports, and the Standardized World Income Inequality Database. The study employs Ordinary Least Squares and Newey-West regression techniques for estimation.
Results and conclusion: The findings show that financial inclusion exerts a reducing effect on income inequality in Nigeria. Economic growth also contributes to inequality reduction, while inflation and real interest rate tend to worsen inequality. Government spending shows a negative but weak effect on inequality, while primary school enrolment does not exert a statistically significant short-run effect. The study concludes that financial inclusion is an important instrument for promoting a more equitable income distribution in Nigeria.
Implication of findings: The findings imply that policies aimed at expanding access to financial services, strengthening macroeconomic stability, and improving the efficiency of public spending are essential for reducing income inequality and promoting inclusive growth in Nigeria.
References
Ahmad, D. (2018). Financial inclusion and financial stability: Survey of the Nigeria’s financial system. International Journal of Research in Finance and Management, 1(2), 47–54. https://doi.org/10.33545/26175754.2018.v1.i2a.15
Ajide, F. (2015). Financial inclusion and rural poverty reduction: Evidence from Nigeria. International journal of management sciences and humanities, 3(2).
Ajide, K. B. (2017). Determinants of financial inclusion in Sub-Saharan Africa countries: does institutional infrastructure matter? CBN Journal of Applied Statistics, 8(2), 69-89.
Albanesi, S. (2007). Inflation and inequality. Journal of Monetary Economics, 54(4), 1088-1114.
Aminu, A. (2019). Characterising graduate unemployment in Nigeria as education-job mismatch problem. African Journal of Economic Review, 7(2), 113-130.
Arestis, P., & Sawyer, M. (2006). The case for fiscal policy. In P. Arestis, J. Ferreiro, & F. Serrano (Eds.), Financial Developments in National and International Markets (pp. 103–117). Palgrave Macmillan
Barro, R. J. (2000). Inequality and growth in a panel of countries. Journal of Economic Growth, 5(1), 5-32.
Baum, C. F., Schaffer, M. E., & Stillman, S. (2007). Enhanced routines for instrumental variables/generalized method of moments estimation and testing. The Stata Journal, 7(4), 465–506.
Beck, T., Demirgüç-Kunt, A., & Levine, R. (2007). Finance, inequality, and the poor. Journal of Economic Growth, 12(1), 27–49. https://doi.org/10.1007/s10887-007-9010-6
Becker, G. S. (2009). Human capital: A theoretical and empirical analysis, with special reference to education. University of Chicago press.
Björkegren, D., Blumenstock, J., Folajimi-Senjobi, O., Mauro, J., & Nair, S. R. (2022). Instant Loans Can Lift Subjective Well-Being: A Randomized Evaluation of Digital Credit in Nigeria. arXiv. https://arxiv.org/abs/2202.13540
Cao, J., Law, S. H., Wu, D., Tang, X., & Yang, X. (2022). Effect of digital financial inclusion on dredging the path of green growth—new evidence from front-end and back-end perspectives. Frontiers in Environmental Science, 10, 865229.
Castelló, A., & Doménech, R. (2002). Human capital inequality and economic growth: Some new evidence. The Economic Journal, 112(478), C187-C200.
Central Bank of Nigeria (2022) Financial Inclusion. Available at: Central Bank of Nigeria financial inclusion page https://www.cbn.gov.ng/FinInc/?utm_source=chatgpt.com
Dabla-Norris, M. E., Deng, Y., Ivanova, A., Karpowicz, M. I., Unsal, M. F., VanLeemput, E., & Wong, J. (2015). Financial inclusion: zooming in on Latin America. International Monetary Fund.
Demirgüç-Kunt, A., & Klapper, L. (2013). Measuring financial inclusion: Explaining variation in use of financial services across and within countries. Brookings Papers on Economic Activity, 46(1), 279– 321. https://doi.org/10.2139/ssrn.2194632
Demirgüç-Kunt, A., & Klapper, L. F. (2012). Measuring financial inclusion: The global findex database. World Bank policy research paper, (6025).
Demirgüç-Kunt, A., & Levine, R. (2009). Finance and inequality: Theory and evidence. Annual Review of Financial Economics, 1(1), 287-318.
Demirgüç-Kunt, A., Klapper, L., Singer, D. and Ansar, S. (2022). The Global Findex Database 2021: Financial inclusion, digital payments, and resilience in the age of COVID-19. Washington, DC: World Bank.
Easterly, W., & Fischer, S. (2001). Inflation and the Poor. Journal of money, credit and banking, 160-178.
EFInA (2024) A2F 2023 Survey: Key Highlights. Lagos: Enhancing Financial Innovation and Access.
Etudaiye-Muhtar, O.F. (2024) ‘Financial Inclusion and Income Inequality in Nigeria’, Management of Sustainable Development, 16(1), pp. 75–87. https://doi.org/10.54989/msd-2024-0007.
Federal Ministry of Education. (n.d.). Various annual reports. Abuja, Nigeria: Government of Nigeria.
Galor, O., & Zeira, J. (1993). Income distribution and macroeconomics. Review of Economic Studies, 60(1), 35- 52.
Gita, E. E., & Oriavwote, V. (2025). Digital banking tools and savings performance. FUDMA Journal of Accounting and Finance Research (FUJAFR), 3(4), 35–44.
Gujarati, D. N., & Porter, D. C. (2009). Basic econometrics (5th ed.). McGraw-Hill Education.
Hein, E. (2012). The Macroeconomics of Finance-Dominated Capitalism and Its Crisis. Edward Elgar Publishing.
Igwegbe, N. I., & Metu, A. G. (2021). Determinants of income inequality in Nigeria. Journal of Economic Studies (JES), 18(1), 74–87.
Inoue, T. (2024). Financial inclusion and income distribution revisited: New findings. The Quarterly Review of Economics and Finance, 98, 101940.
Kalecki, M. (1943). Political aspects of full employment. The Political Quarterly, 14(4), 322–331.
Keynes, J. M. (1936). The General Theory of Employment, Interest, and Money. Macmillan.
Kim, H., Lin, S., & Suen, Y. B. (2020). The impact of macroeconomic factors on income inequality in BRICS countries. Economic Modelling, 91, 416–425. https://doi.org/10.1016/j.econmod.2020.06.014
Lavoie, M. (2014). Post-Keynesian Economics: New Foundations. Edward Elgar Publishing.
Ndou, E. (2024). Inflation-income inequality nexus in South Africa: the role of inflationary environment. Journal of Applied Economics, 27(1), 2316968.
Newey, W. K., & West, K. D. (1987). A simple, positive semi-definite, heteroskedasticity and autocorrelation consistent covariance matrix. Econometrica, 55(3), 703–708. https://doi.org/10.2307/1913610
Okowa, E., & Owede, M. (2022). Financial Inclusion-Income Inequality Nexus in Nigeria: Evidence from Dynamic Ordinary Least Square (DOLS) Modeling Approach. International Journal of Research and Scientific Innovation, 9(2), 84-94.
Olayungbo, D. O., & Ajuwon, K. T. (2015). Dollarization, inflation and interest rate in Nigeria. CBN Journal of Applied Statistics, 6(1), 241-261.
Omar, M. A., & Inaba, K. (2020). Does financial inclusion reduce poverty and income inequality in developing countries? A panel data analysis. Journal of Economic Structures, 9(1), 1-25.
Omojolaibi, J. A. (2017). Financial Inclusion, Governance and Welfare Analysis in Nigeria. Journal of Economics and Policy Analysis, 2(2), 142-161.
Oyekale, A. S., & Adepoju, A. O. (2012). Determinants of income inequality and welfare status of households in Nigeria. Journal of Development and Agricultural Economics, 4(4), 78-92.
Palley, T. (2016). Financialization: the economics of finance capital domination. Springer.
Palley, T. I., Arestis, P., & Sawyer, M. (2006). A handbook of alternative monetary economics. Chapter 15, Philip, A. and Malcolm, S.(eds), published by Cheltenham, Edward Elgar.
Park, C. Y., & Mercado, R. V. (2021). Financial inclusion: New measurement and cross-country impact assessment 1. In Financial Inclusion in Asia and beyond (pp. 98-128). Routledge.
Salis, K. Y. (2021). An analysis of primary and secondary school enrolment and inclusive growth in Nigeria. International Journal of Academic Reserach in Economics and Management Sciences, 10(4).
Sawadogo, R. and Semedo, G. (2021) ‘Financial inclusion, income inequality, and institutions in sub- Saharan Africa: Identifying cross-country inequality regimes’, International Economics, 167, pp. 15–28. https://doi.org/10.1016/j.inteco.2021.05.002.
Segning, B.A., Djiogap, C.F., Piabuo, S.M. and Noupie, E.N. (2024). Financial Inclusion and Income Inequality in Sub-Saharan Africa: Taking Socio-Cultural Particularities into Account. Journal of the Knowledge Economy, 15(2), 7307–7330. https://doi.org/10.1007/s13132-023-01207-x
Shehu, K., Yahaya, S., Aliyu, A., Ahmed, I., Abdullahi, M., & Bashiru, S. (2025). Microcredit and poverty reduction: The role of entrepreneurial self-efficacy: empirical evidence from Kano, Northwest Nigeria. FUDMA Journal of Accounting and Finance Research (FUJAFR), 3(4), 74–88.
Solt, F. (2020). Measuring income inequality across countries and over time: The standardized world income inequality database. Social Science Quarterly, 101(3), 1183-1199.
Stockhammer, E. (2015). Rising inequality as a cause of the present crisis. Cambridge Journal of Economics, 39(3), 935–958. https://doi.org/10.1093/cje/beu037
Tran, H. T. T., & Le, H. T. T. (2021). The impact of financial inclusion on poverty reduction. Asian Journal of Law and Economics, 12(1), 95-119.
Turegano, D. M., & Herrero, A. G. (2018). Financial inclusion, rather than size, is the key to tackling income inequality. The Singapore Economic Review, 63(01), 167-184.
World Bank (2025) Financial Inclusion Overview. Washington, DC: World Bank.
World Bank (2025) Nigeria Poverty and Equity Brief. Washington, DC: World Bank.
World Bank. (2022). Nigeria poverty assessment 2022: A better future for all Nigerians. Washington, DC: International Bank for Reconstruction and Development / The World Bank. Retrieved from https://www.worldbank.org
Yongosi, M., & Oriavwote, V. E. (2025). Monetary policy and the manufacturing sector in Nigeria. FUDMA Journal of Accounting and Finance Research (FUJAFR), 3(4), 155–171.
Zerihun, M. F. (2025). Impact of public expenditure on income inequality: a comparative evidence from low-and lower-middle-income Sub-Saharan African economies. Development Studies Research, 12(1), 2594187. https://doi.org/10.1080/21665095.2025.2594187.
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