Savings, Investment and Economic Growth in Nigeria: Evidence from ARDL Bounds Testing and Granger Causality
DOI:
https://doi.org/10.65150/EP-jefrr/V2E7/2026-05Keywords:
Savings, Investment, Economic growth, ARDL model, Co-integration, Error correctionAbstract
The study examined the relationship between Savings, Investment and Economic Growth in Nigeria using time series data covering the period of 1990 to 2020. Specifically, the study examined: the effects of gross domestic savings on economic growth; and the effects of gross domestic investment on economic growth in Nigeria. It investigated the existence of a long run relationship between Savings, Investment and Economic Growth in Nigeria and as well examined the causal relationship between Savings, Investment and Economic Growth in Nigeria. The study employed Autoregressive Distributed Lag (ARDL) model. The ARDL long-run bounds test established the existence of long run effects of savings and investment on economic growth in Nigeria. The study revealed that savings has a positive and statistically significant relationship with economic growth in the short run and in the long run. On the contrary, investment has a negative and statistically significant relationship with economic growth in the short run and in the long run. The ECM result revealed that about 68.9% of the short run disequilibrium and inconsistencies are corrected and adjusted to long run equilibrium path. The Granger Causality test revealed no causal relationship between savings and economic growth as well as none between investment and economic growth. The study recommends that the government and policy makers should formulate and implement policies that will encourage savings and enhance the savings culture. Additionally, investment expenditures should be prioritized and strategically channeled to the real sector to boost output growth
References
1) Aftalion, A. (1925). Existe-t-il un niveau normal du change? Revue économique Internationale [1925], no. 4:423–450.
2) Agrawal, P. and P., Sahoo, (2009), Saving and Growth in Bangladesh, The Journal of Developing Areas, 42, Iss. 2, 89-110.
3) Attanasio, O.P., Picci, L. and Scorcu, A. E. (2000). Saving, Growth and Investment: A Macroeconomic Analysis Using a Panel of Countries. The Review of Economics and Statistics, MIT Press, vol. 82(2), pages 182-211, May.
4) Anoruo, E. and Ahmad, Y. (2001), Causal Relationship between Domestic Savings and Economic Growth: Evidence from Seven African Countries. African Development Review, 13(2), 238-249
5) Ayinde, T. O., and Yinusa, O. G. (2016). Financial Development and Inclusive Growth in Nigeria: A Threshold Analysis. Acta Universitatis Danubius: Oeconomica, 12(5):166-189.
6) Bakare, A.S. (2011), A theoretical analysis of capital formation and growth in Nigeria. Far East Journal of Psychology and Business,3(2),11-24.
7) Budha, B. (2012). A multivariate analysis of savings, investment and growth in Nepal. Munich Personal RePEc Archive (MPRA) Working Paper No. 43346. December 2012.
8) Central Bank of Nigeria (2022). Statistical Bulletin, Published by Research Department, Central Bank of Nigeria, Abuja
9) Domar, E.D.(1946). Capital expansion, rate of growth, and employment. Econometrica, 14, 137-147.
10) Dwivedi, D.N. (2004) Managerial Economics. New Delhi: Vikas Publishing House PVT Ltd., 6th Edition.
11) Elbadawi, I. and Mwega, F. (2000). Can Africa’s Savings Collapse Be Reversed? The World Bank Economic Review. Vol. 14 (3):415-443.
12) Essien, E. A. and Bawa, E. N., 2007, Explaining Growth: A Cross- Country Analysis of West African Monetary Zone (WAMZ)” CBN Economic and Financial Review vol. 40. Setp.
13) Ewetan, O. O., and Ike, D. N. (2014). Does Financial Sector Development Promote 450 Industrialization in Nigeria? International Journal of Research in Social Sciences, 4(1), 17-25.
14) Gidigbi, M. O. and Donga, M. (2020). Impact of Savings on Economic Growth in Africa. The Economics and Finance Letters, Conscientia Beam, 7(2):136-147.
15) Gotera, U.R. (2002). Determinants of Savings in Nigeria (1975-2000). Retrieved from: http://www.econresearch.edu/savings/Nigeria/
16) Harrod, R. (1939). An essay in dynamic theory. Economic Journal, 49, 14–33.
17) Jangili, R. (2011). Causal Relationship Between Saving, Investment and Economic Growth for India – What Does the Relation Imply? MPRA Paper 4002, University Library of Munich, Germany.
18) Keynes, J.M. (1930). A Treatise on Money Volume 1 and II. London: Macmillan Co. Limited
19) Mandishekwa, R. (2014). Causality between Economic Growth and Investment in Zimbabwe. Journal of Economics and Sustainable Development, 5(20): 136-140.
20) Misztal, P. (2011). The Relationship Between Savings and Economic Growth in Countries with Different Level of Economic Development, e-Finanse: Financial Internet Quarterly, ISSN 1734-039X, University of Information Technology and Management, Rzeszów, Vol. 7, Iss. 2, pp. 17-29
21) Mphuka, C. (2010) Are Savings Working for Zambia’s Growth? Zambia Social Science Journal, Vol. 1: No. 2, Article 6.
22) Nakamura, E. and Steinsson, J. (2014). Fiscal Stimulus in a Monetary Union: Evidence from US Regions. American Economic Review, 104(3):753-792.
23) Nwachukwu, T. and Ogigie, P. (2011). What Drives Private Saving in Nigeria? AERC Working Papers, African Economic Research Consortium.
24) Nwanne, T. F. I. (2016). Implications of Savings and Investment on Economic Growth in Nigeria. European Journal of Accounting Auditing and Finance Research, 4(2):20-32
25) Odey, F. I., Effiong C, E. and Nwafor J. E (2017). Savings-Investment and Economic Growth Nexus in Nigeria. International Journal of Development and Economic Sustainability, 5(7):1 -14. Published by European Center for Research Training and Development UK.
26) Odhiambo, N.M. (2008). Financial Depth, Savings and Economic Growth in Kenya: A Dynamic Causal Linkage. Economic Modelling, 25(4):704-713.
27) Odhiambo, N.M. (2009). Savings and Economic Growth in South Africa: A Multivariate Causality Test. Journal of Policy Modelling, 31(5): 708-718
28) Ogoe, E. (2009) An Econometric Analysis of the Causal Relationship between Gross Domestic Savings and Economic Growth in Ghana (1961-2008). Master’s Thesis, Department of Economics, Kwame Nkrumah University of Science and Technology, Kumasi.
29) Ojiegbe, J.N., Duruechi, A. H. and Makwe, E.U. (2016). Savings, Investment and Economic Growth in Nigeria. Developing Country Studies, 6(7):85-98.
30) Olayiwola, A. S., Okunade, S. O. and Fatai, M. O. (2021). Savings-Growth Nexus Revisited. An Empirical Analysis from Nigeria. African Journal of Economic Review. Vol 9, Issue 4.
31) Ominyi, S.O. and Okoh, I.E. (2017). Savings as a Predicator for Sustainable Economic Growth in Nigeria. Nigerian Journal of Management Sciences, 6(1):285-294.
32) Osmond, C.A. and Adeleke, O. (2021). Savings, Investment and Economic Growth in Nigeria: An Autoregressive Distributive Lag
Approach. Acta Universitatis Danubius. Œconomica, 17(2): 216-233.
33) Shimelis, K. H. (2014), Savings, Investment and Economic Growth in Ethiopia: Evidence from ARDL approach to co-integration and TYDL granger causality tests. Journal of Economics and International Finance, 6(10): 232-248
34) Sinha, D., Sinha, T. (1998), Cart before the horse? The savings-growth nexus in Mexico. Economics Letters, 61(1), 43-47.
35) Solow, R. M. (1956). A Contribution to the Theory of Economic Growth. Quarterly Journal of Economics, 70, 65–94.
36) Solow, R. M. and Swan, T.W. (1956). Economic Growth and Capital Accumulation. Economic Record, 32(2), 334-361.
37) Tang, C. F., & Tan, B. E. (2014). A revalidation of the savings–growth nexus in Pakistan. Economic Modeling, 36 (2), 370–377.
38) Tooke, Thomas (1844). An Inquiry into the Currency Principle; The Connection of the Currency with Prices, and the Expediency of the Separation of Issue from Banking. London: Longman, Brown, Green, and Longmans.
https://en.wikipedia.org/wiki/Thomas_Tooke#References
39) Udousoro, L.E., Eko, S.A. and Udonwa, U. (2013). Dynamic Analysis of Savings and Economic Growth in Nigeria. Journal of Agriculture and Social Research, 13(2): 1-15.
40) Utemadu, S. O. (2002). The impact of capital formation on economic growth. Journal of Economic and Financial Studies.
41) Verma, R. (2007). Savings, investment and Growth in India. South Asia Economic Journal, 8 (1): 87-98.
42) Wicksell, K. (1907). The Influence of the Rate of Interest on Prices. The Economic Journal. 17(66), pp. 213-220
43) Wicksell, K. (1965 [1898]). Interest and Prices, A Study of the Causes Regulating the Value of Money. Originally published 1898 in German as Geldzins und Güterpreise, eine Studie über die den Tauschwert des Geldes bestimmenden Ursachen. English translation first published 1936. Reprinted. New York: Augustus M. Kelley.
44) Yesufu, T. M., 1996, The Nigerian Economy: Growth without Development. University of Benin. Benin Social Science Series for Africa.
45) World Bank Development Indicator 2018, 2019 and 2020.
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Copyright (c) 2026 Dr Uduakobong Samuel Inam , Irene Baldoma Usoro (Author)
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