Oil Revenue Dependence, Economic Diversification and Growth Performance in African Oil-Exporting Countries

This research paper has discussed the connection between oil revenue dependence, diversification of the economy and growth performance of the African oil-exporting nations using Nigeria and Algeria as a case study during the 2000-2025 period. The research was driven by the fact that most of the African economies continued to rely on petroleum revenues even when diversification efforts were underway and they were thus susceptible to changes in the global oil markets. In particular, the paper examined how oil revenue dependence impacts on growth performance and assessed how economic diversification affects growth performance in the identified countries. The research design was ex post facto where annual secondary panel data was gathered through World Bank, International Monetary Fund, African Development Bank, Organization of Petroleum Exporting Countries, International Energy Agency and United Nations Conference on Trade and Development. The data were analyzed using descriptive statistics, panel unit root tests, panel cointegration tests and the Pooled Mean Group estimator of the Panel Autoregressive Distributed Lag (Panel ARDL) model. Methodology demonstration with illustrative (simulated) data showed that dependence on oil revenue has negative and statistically significant impact on growth performance, and that diversification of the economy has positive and statistically significant impact on growth performance in Nigeria and Algeria. The panel cointegration tests established the presence of a long run equilibrium relationship among the variables and the error correction mechanism established that short run deviation would tend to gravitate towards long run equilibrium in the long run. The paper concludes that overreliance on petroleum revenues is detrimental to long-term economic growth, and the diversification of the economy leads to macroeconomic stability and sustainable development. Based on this, the paper suggests that to attain sustainable economic growth in the African oil-exporting nations, there should be reduced reliance on oil income, faster economic diversification, stronger industrialization strategies, better infrastructure development, better fiscal stabilization, promotion of private-sector development, enhanced governance, and enhanced regional trade integration.