Determinants of Balance of Payments in Sierra Leone: An ARDL Model Approach

Authors

  • Dr. Abu Kai Kamara Fourah Bay College
  • Dr. Dante Alie Bendu Fourah Bay College
  • Mohamed Sajor Jalloh IPAM-USL
  • Abdulrahman N’Jai IPAM-USL

DOI:

https://doi.org/10.47604/ijlp.3561

Keywords:

Balance of Payments, Exchange Rate, Foreign Direct Investment (FDI), Autoregressive Distributed Lag (ARDL), Interest Rate, Macroeconomics, Sierra Leone

Abstract

Purpose: Using yearly data from 1980 to 2020, this study investigates the macroeconomic factors influencing Sierra Leone's balance of payments (BoP). The purpose is to determine the main macroeconomic determinants affecting Sierra Leone's external sector performance in order to address the paucity of empirical data on BoP dynamics in post-conflict nations.

Methodology: Both short- and long-term relationships between BoP and its determinants—real GDP, foreign direct investment (FDI), real interest rate, official effective exchange rate (OEEXR), and the external balance on goods and services (EBGS)—are estimated using the Autoregressive Distributed Lag (ARDL) bounds-testing approach.

Findings: The results show that while FDI has a negative impact on the BoP because of its link to import-intensive businesses and profit repatriation, real interest rates and exchange rate fluctuations have a considerable short- and long-term impact on the BoP.

Unique Contribution to Theory, Practice and Policy: While EBGS is statistically insignificant, real GDP exhibits a favorable long-term effect. In order to guarantee a sustainable external balance, the study recommends preserving currency rate stability, encouraging export diversification, and creating FDI policies that improve domestic ties and lessen reliance on imports.

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References

Adams, S. (2009) ‘Foreign direct investment, domestic investment, and economic growth in Sub-Saharan Africa’, Journal of Policy Modeling, 31(6), pp. 939–949.

Alexander, S.S. (1952) ‘Effects of a devaluation on a trade balance’, IMF Staff Papers, 2(2), pp. 263–278.

Alfaro, L., Chanda, A., Kalemli-Ozcan, S. & Sayek, S. (2004) ‘FDI and economic growth: The role of local financial markets’, Journal of International Economics, 64(1), pp. 89–112.

Asiedu, E. (2006) ‘Foreign direct investment in Africa: The role of natural resources, market size, government policy, institutions and political instability’, World Economy, 29(1), pp. 63–77.

Bahmani-Oskooee, M. (1995) ‘Real and nominal effective exchange rates for 22 LDCs: 1971:1–1990:4’, Applied Economics, 27(6), pp. 591–604.

Bank of Sierra Leone (2022) Annual Reports and Statistical Bulletins. Freetown: BSL.

Brooks, C. (2019) Introductory Econometrics for Finance. 4th edn. Cambridge: Cambridge University Press.

Bundu, S., Jalloh, M. & Kamara, A. (2021) ‘Macroeconomic impacts of the COVID-19 pandemic in Sierra Leone’, African Journal of Economic Policy, 28(2), pp. 55–72.

Chowdhury, A. (1993) ‘Does foreign capital alleviate poverty? A time-series analysis for Bangladesh’, Applied Economics, 25(11), pp. 1469–1476.

Collier, P. (2003) Breaking the Conflict Trap: Civil War and Development Policy. Washington, DC: World Bank.

Collier, P. & Goderis, B. (2012) ‘Commodity prices and growth: An empirical investigation’, European Economic Review, 56(6), pp. 1241–1260.

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), pp. 427–431.

Eita, J.H. (2012) ‘The balance of payments as a monetary phenomenon: Econometric evidence from Namibia’, The Journal of Developing Areas, 46(2), pp. 29–53.

Edwards, S. (1989) Real Exchange Rates, Devaluation, and Adjustment: Exchange Rate Policy in Developing Countries. Cambridge, MA: MIT Press.

Engle, R.F. & Granger, C.W.J. (1987) ‘Co-integration and error correction: Representation, estimation, and testing’, Econometrica, 55(2), pp. 251–276.

Frenkel, J.A. & Johnson, H.G. (1976) The Monetary Approach to the Balance of Payments. London: Allen & Unwin.

Goldstein, M. & Khan, M.S. (1985) ‘Income and price effects in foreign trade’, in Jones, R.W. & Kenen, P.B. (eds.) Handbook of International Economics. Amsterdam: North-Holland, pp. 1041–1105.

Granger, C.W.J. & Newbold, P. (1974) ‘Spurious regressions in econometrics’, Journal of Econometrics, 2(2), pp. 111–120.

Gujarati, D.N. & Porter, D.C. (2009) Basic Econometrics. 5th edn. New York: McGraw-Hill.

International Monetary Fund (IMF) (2019) Balance of Payments and International Investment Position Manual. 6th edn. Washington, DC: IMF.

International Monetary Fund (IMF) (2020) Sierra Leone: Staff Report for the 2020 Article IV Consultation. Washington, DC: IMF.

International Monetary Fund (IMF) (2020) International Financial Statistics. Washington, DC: IMF.

International Monetary Fund (IMF) (2022) International Financial Statistics. Washington, DC: IMF.

Johansen, S. (1995) Likelihood-Based Inference in Cointegrated Vector Autoregressive Models. Oxford: Oxford University Press.

Johnson, H.G. (1975). Further Essays in Monetary Economics. London: Allen & Unwin.

Kenen, P.B. (1985). Macroeconomic Theory and Policy: A Text. New York: Harcourt Brace Jovanovich.

Krugman, P.R. & Obstfeld, M. (2009). International Economics: Theory and Policy. 8th edn. Boston: Pearson.

Krugman, P.R., Obstfeld, M. & Melitz, M.J. (2018). International Economics: Theory and Policy. 11th edn. Harlow: Pearson.

Kwiatkowski, D., Phillips, P.C.B., Schmidt, P. & Shin, Y. (1992) ‘Testing the null hypothesis of stationarity against the alternative of a unit root: How sure are we that economic time series have a unit root?’, Journal of Econometrics, 54(1–3), pp. 159–178.

Milesi-Ferretti, G.M. & Razin, A. (1996) Current Account Sustainability. Princeton, NJ: Princeton University Press.

Mundell, R.A. (1968) International Economics. New York: Macmillan.

Mudida, R. & Guglielmo, G. (2012) ‘Exchange rate volatility and balance of payments adjustment in Kenya’, Journal of World Trade, 46(6), pp. 1401–1420.

Ndicumana, L. & Boyce, J.K. (2011) Africa’s Odious Debts: How Foreign Loans and Capital Flight Bled a Continent. London: Zed Books.

Ndoricimpa, A. (2017) ‘Threshold effects of inflation on economic growth in Africa: Evidence from a dynamic panel threshold regression approach’, African Development Review, 29(2), pp. 178–190.

Nkoro, E. & Uko, A.K. (2016) ‘Autoregressive Distributed Lag (ARDL) cointegration technique: application and interpretation’, Journal of Statistical and Econometric Methods, 5(4), pp. 63–91.

Narayan, P.K. (2005) ‘The saving and investment nexus for China: Evidence from cointegration tests’, Applied Economics, 37(17), pp. 1979–1990.

Pesaran, M.H. & Shin, Y. (1999) ‘An autoregressive distributed lag modelling approach to cointegration analysis’, in Strom, S. (ed.) Econometrics and Economic Theory in the 20th Century: The Ragnar Frisch Centennial Symposium. Cambridge: Cambridge University Press.

Pesaran, M.H., Shin, Y. & Smith, R.J. (2001) ‘Bounds testing approaches to the analysis of level relationships’, Journal of Applied Econometrics, 16(3), pp. 289–326.

Phillips, P.C.B. & Perron, P. (1988) ‘Testing for a unit root in time series regression’, Biometrika, 75(2), pp. 335–346.

Perron, P. (1989) ‘The great crash, the oil price shock, and the unit root hypothesis’, Econometrica, 57(6), pp. 1361–1401.

Robinson, J. (1937) Essays in the Theory of Employment. London: Macmillan.

Taylor, L. (1995) ‘The economics of financial crises’, World Development, 23(12), pp. 2035–2047.

UNCTAD (2020) World Investment Report 2020: International Production Beyond the Pandemic. Geneva: United Nations.

UNECA (2015) Economic Report on Africa 2015: Industrializing through Trade. Addis Ababa: United Nations Economic Commission for Africa.

World Bank (1995) Sierra Leone: Structural Adjustment Program Review. Washington, DC: World Bank.

World Bank (2015) Sierra Leone: Diagnostic Trade Integration Study. Washington, DC: World Bank.

World Bank (2019) Sierra Leone Economic Update: Financial Inclusion for Economic Growth. Washington, DC: World Bank.

World Bank (2020) Sierra Leone Economic Update: Strengthening Resilience and Diversification. Washington, DC: World Bank.

World Bank (2021) World Development Indicators. Washington, DC: World Bank.

World Bank (2022) World Development Indicators. Washington, DC: World Bank.

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Published

2025-11-10

How to Cite

Kamara, A., Bendu, D., Jalloh, M., & N’Jai, A. (2025). Determinants of Balance of Payments in Sierra Leone: An ARDL Model Approach. International Journal of Law and Policy, 10(1), 31–48. https://doi.org/10.47604/ijlp.3561

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