Journal of Sustainable Development in Africa (Volume 10, No.3, 2008) ISSN: 1520-5509 Clarion University of Pennsylvania, Clarion, Pennsylvania
THE IMPACT OF EXTERNAL DEBT ON ECONOMIC GROWTH: A COMPARATIVE STUDY OF NIGERIA AND SOUTH AFRICA Folorunso S. Ayadi University of Lagos Felix O. Ayadi Texas Southern University
Abstract This paper investigates the impact of the huge external debt, with its servicing requirements, on economic growth of the Nigerian and South African economies. The external debts of Nigeria and South Africa are analyzed in a new context utilizing traditional, but innovative, models and econometric techniques. The Neoclassical growth model, which incorporates external sector, debt indicators, and some macroeconomic variables, is employed in this study to explore a linear, as well as non-linear, effect of debt on growth and investment. Both ordinary least squares (OLS) and generalized least squares (GLS) are employed in the analysis. Among other test results, the negative impact of debt (and its servicing requirements) on growth is confirmed in Nigeria and South Africa. However, South Africa performs better than Nigeria in the application of external loans to promote growth. In addition, external debt contributes positively to growth up to a point after which its contribution becomes negative in Nigeria (reflecting the presence of non-linearity effects).
Introduction External debt is one of the sources of financing capital formation in any economy. Adepoju et al. (2007) note that developing countries in Africa are characterized by inadequate internal capital formation due to the vicious circle of low productivity, low income, and low savings. Therefore, this situation calls for technical, managerial, and financial support from Western countries to bridge the resource gap. On the other hand, 234
external debt acts as a major constraint to capital formation in developing nations. The burden and dynamics of external debt show that they do not contribute significantly to financing economic development in developing countries. In most cases, debt accumulates because of the servicing requirements and the principal itself. In view of the above, external debt becomes a self-perpetuating mechanism of poverty aggravation, work over-exploitation, and a constraint on development in developing economies (Nakatami & Herera, 2007). Like most developing countries of the world, Nigeria relies substantially on external funds for financing its development projects – iron and steel mills, roads, electricity generation plants etc. Such external funding usually takes the form of external loans. In the early years of political independence (i.e. 1960 through 1975), the size of such loans was small, the rate of interest concessionary, the maturity was long-term, and the source was usually bilateral or multilateral in nature. For instance, Nigeria’s external debt in 1960 was about $150 million; however, beginning in the year 1978, the situation changed. Nigeria, at the lure of the international financial centers, started to borrow huge sums from private sources at floating rates and with shorter-term maturities. The 1978 “jumbo loan” alone was estimated at some US $1 billion. By 1982, the value of Nigeria’s external indebtedness was US $18.631 billion, which represented over 160% of Nigeria’s gross domestic product (GDP) for that year. The situation precipitated a debt-crisis that progressively worsened over time. By 1986, Nigeria had to adopt a World Bank/International Monetary Fund (IMF) sponsored Structural Adjustment Program (SAP), with a view to revamping the economy and making the country better-able to service her debt. Loan capital was readily available to South Africa during the 1970s, and both the public and the private sectors borrowed heavily, often in the form of trade credits. However,
in the early 1980s, foreign investments declined relative to the value of foreign loans needed to finance...
References: Adegbite, E.O. (1997). “Determinants of Manufactured Export Supply in Nigeria”, Research Report Submitted to the African Economic Research Consortium, Nairobi, Kenya. Adepoju, A. A.; Salau, A.S.; Obayelu, A.E. (2007). “The Effects of External Debt Management on Sustainable Economic Growth and Development: Lessons from Nigeria”. Munich Personal RePEC Achieve (MPRA). Paper No. 2147. Ajayi, S.I (1995). “Capital Flight and External Debt in Nigeria”, Research Paper #35, of the African Economic Research Consortium, Kenya. Ajayi, S. I., and Khan, M. S. (2000). External Debt and Capital Flight in Sub-Saharan Africa. International Monetary Fund. Arnone, Marco; Luca, B.; Presbitero, Andrea F. (2005). “External Debt Sustainability: Theory and Empirical Evidence”. http://www3.unicatt.it/unicattolica/Dipartmenti/DISES/allegati/ArnoneBandiera Presbiter033.pdf. Ashinze, J. O. and Onwioduokit, E.A. (1996). “Economic Growth and Foreign Debt: A Case Study of Nigeria”. CBN Economic and Financial Review, 34, 523-540. Audu, Isa (2004). The Impact of External Debt on Economic Growth and Public Investment: The Case of Nigeria. African Institute for Economic Development and Planning (IDEP) Dakar Senegal. ., http://www.unidep.org. Ayadi, F.S., (1999). The Impact of External Debt Servicing Requirements on Nigeria’s Economic Development. A Dissertation Submitted to the University of Lagos, In Partial Fulfillment of Master of Science Degree, Lagos, Nigeria. Ayadi, F. S.; Toluwase, A.; Ayadi, O. F.; Chatterjee, A. (2003). “Investment Adjustment Mechanism and External Debt Burden in a Developing Economy.” In Nwankwo, S. et al., (Editors) Dimensions of African Business and Development. Sheffield Hallam University Press. Candemýr, H. Baturalp (1994). “External Debt and Internal Transfer Problem: The Case of Turkey:1980-1990”. The Central Bank of the Republic of Turkey Research Department. Discussion Paper No 9404. January. Cashel-Cordo, P.; and Craig, S. G. (1990). “The Public Sector Impact on International Resource Transfers.” Journal of Development Economics. 32(1): 17-24. Chenery, H.B.; and Strout, A. (1966). “Foreign Assistance and Economic Development”. American Economic Review. Vol. 56, pp.679-733. CIA World Factbook Photius Coutsoukis (2004). The Library of Congress Country Studies; Revised 10-Nov.04. Cohen, Daniel (1989). “How to Cope with Debt Overhang: Cut Flows Rather than Stocks”. In Dealing with Debt crisis. Ed. By Husain and Diwan. Chap. 13. Cohen, Daniel (1993). “Low Investment and Large LCD Debt in the 1980s”. The American Economic Review. Vol. 83 No. 3. Country Report South Africa Update (2007). Economic Research Department Country Risk Research. June. Cleassens, Stijn; Detragiache, E., Kanbur, R. and Wickham, P. (1996) “Analytical Aspects of the debt Problems of Heavily Indebted Countries”. World Bank Policy Research Working Paper number 1618.
Cleassens, Stijn; Detragiache E.; Kanbur, R.; Wickham, P. (1997). “Analytical Aspects of the Debt Problems of Heavily Indebted Countries”. in Zubair Iqbal and Ravi Kanbur (eds.), 1997, External Finance for Low-Income Countries, IMF Institute Washington, D.C., 21-48. Clements, B.; Bhattarcharya, R.; Nguyen, T.Q. (2003). “External Debt, Public Investment, and Growth in LowIncome Countries”. IMF Working paper No. 03/249. Colaco, F.X. (1985). “International Capital Flows and Economic Development.” Finance and Development, 22, 12-22. Fosu, A. K. (2007). “The External Debt-Servicing Constraint and Public Expenditure Composition: Evidence from African Economies”. UNU-WIDER. Research paper No. 2007/36. Eaton, Jonathan (1993). “Sovereign Debt: A Primer”. World Bank Economic Review, vol.7, No.2, pp. 137-72. Edwards, S. (1998). Openness, Productivity, and Growth: What Do We Really Know? Economics Journal, vol. 108, pp. 383-98. Ellig, J. (2001). Dynamic Competition and Public Policy: Technology, Innovation and Antitrust Issues. (Eds.). Cambridge University Press, Cambridge. Elbadawi, Ibrahim A.; Ndulu, Benno J.; Ndungu, Njuguna (1999). Debt Overhang and Economic Growth in Sub-Saharan Africa. External Finance for Low-Income Countries. (Eds.) Iqbal, Zubair, and Ravi Kanbur. Washington D.C. IMF Institute Chap. 5. Edo, Samson E. (2002). “The External Debt Problem in Africa: A Comparative Study of Nigeria and Morocco”. African Development Review. Vol. 14, No 2, PP. 221-236. Gounder, Rukmani (2001). An Empirical Investigation of Development Assistance and Growth for the Case of Fiji. International Journal of Social Economics. Vol. 28, No. 3. Pp. 278-294. Greene, H. William (1997). Econometric Analysis. 3rd Edition. Prentice Hall, Upper Saddle River, New Jersey. Greene, J. (1989). “The External Debt Problem of Sub-Saharan Africa”. IMF Staff Papers, 36(4): 836-74. Gunning, J.W. and Richard Mash (1998). “Fiscal Implications of Debt and Debt Relief: Issues Paper. Mimeo. Hunt S. D. (2007) “Economic Growth: Should Policy Focus on Investment or Dynamic Competition?” European Business Review Vol. 19 No. 4. pp 279-291. Iyoha, M.A. (1997). An Economic Study of Debt Overhang, Debt Reduction, Investment and Economic Growth in Nigeria. NCEMA Monograph Series; No. 8. Judge, G. George; Hill, C.; Griffiths, W.; Lee, T. (1985). The Theory and Practice of Econometrics. 2nd Edition. Wiley Series in Probability and Mathematical Statistics. Canada. Mbaku, J. (1993). Foreign Aid and Economic Growth and Econometric Study of Bangladesh Applied Economics, vol. 24, pp. 541-4. Mehran, H. (1986). “External Debt Management.” Finance and Development, 23, 32-43. Mutasa, Charles (2003). “Regional Integration and Debt in Africa: A Comparative Report of Africa’s Regional Groupings.” AFRODAD Research Series. March. Obadan, M. I. (2004). Foreign Capital Flows and External Debt: Perspectives on Nigeria and the LDCs Group. Ibadan, Ibadan University Press. Omotoye, O. Richard; Sharma, H.P.; Ngassam, C.;Eseonu, M. (2006). Sub-Saharan Africa’s Debt Crisis: Analysis and Forecast Based on Nigeria. Managerial Finance,. Vol. 32 No. 7, Pp. 606-620. Peter, A. Diamond (1965). “National Debt in a Neoclassical Growth Model”. The American Economic Review, vol. 55. No.5 Part J, pp. 1126-1150. Root, R. Franklin (1978). Constraints on Domestic Investment Faced by Developing Countries. International Trade and Investment. Fourth edition. South-Western Publishing co. Ohio.
Sachs, J.D. (2002). “Resolving the Debt Crisis of Low Income Countries” Brooking Papers on Economic Activity 2002, pp1-28. Solow, R. M. (1956). “A Contribution to the Theory of Economic Growth”. Quarterly Journal of Economics. Vol 70 pp. 65 -94. South Africa External Debt. http://www.photius.com/countries/south_africa/economy/south_africa_ economy_external_debt:html.
Ubok-Udom, E.U. (1978). “Development Through Debt: Rationalizing the Costs of External Borrowing.” The Nigerian Journal of Economic and Social Studies, 20, 48-56. Umoh, Joe (2002). “Regional Integration and Debt in West Africa”. A Study Report to AFRODAD, Harare.
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