Sub-Saharan Africa is still growing, but the sources that powered earlier expansions are becoming harder to sustain. Commodity booms and public investment have supported periods of rapid growth, yet they have not generated enough productivity, private investment and high-quality jobs to deliver sustained income gains. The International Monetary Fund is now calling for a shift toward a more private-sector-driven growth model.
The headline numbers can obscure the problem. The region grew by 4.5% in 2025, its strongest pace in a decade, and the IMF expects growth to reach 4.3% in 2026. But the regional average masks wide differences between countries and does not by itself indicate whether growth is translating into higher living standards or stronger productive capacity.
The issue, therefore, is not simply whether Africa can grow. It is how that growth is generated and whether it can sustain itself after the next commodity or public-investment cycle ends.
The limits of the old model
For many African economies, particularly resource exporters, higher commodity prices have provided governments with the revenue needed to increase public spending and investment. Oil, gas and minerals will remain important sources of foreign exchange and government revenue, but commodity-led expansion is inherently vulnerable to price cycles.
The deeper weakness is that resource booms do not automatically create a broad base of productive businesses. When commodity prices rise, government revenues and investment can surge. When conditions deteriorate, fiscal space contracts and projects are delayed. Without stronger private investment and productivity growth, the economy can return to its previous trajectory.
That is particularly relevant for countries such as Angola, Gabon and the Republic of Congo, where governments are trying to diversify while remaining dependent on hydrocarbons. The objective cannot simply be to replace one commodity cycle with another. Resource revenues need to help build infrastructure, skills and businesses capable of generating growth beyond the resource sector.
The private-sector gap
The transition is difficult because Africa's private sector remains constrained by weak business environments, limited competition and infrastructure gaps. The IMF identifies governance, business regulation and market openness as key areas where structural improvements could have a significant economic impact.
State-owned enterprises add another layer to the problem. Across a sample of 14 sub-Saharan African countries, SOEs account for an estimated 30% to 50% of GDP, while around 40% are loss-making. Their average annual losses amount to roughly 1% of GDP, according to the IMF.
The issue is not that African governments should withdraw from the economy. Public investment remains essential in electricity, transportation, digital infrastructure and education. The problem is whether public capital is creating the conditions for private investment or simply compensating for the absence of it.
That distinction is becoming more important as governments face tighter budgets, higher borrowing costs and growing debt-service burdens. Public spending alone cannot provide the scale of investment needed to raise productivity across economies.
Reform has to change the investment equation
This is why the IMF's proposed growth reset goes beyond conventional fiscal adjustment. The objective is to make economies more attractive to businesses that can invest, expand and create jobs without permanent state support.
The IMF estimates that closing half of the structural gap between sub-Saharan Africa and frontier emerging markets could increase regional output by up to 20% over five to 10 years, through higher investment, stronger productivity and greater labor-force participation. The estimate is a scenario rather than a forecast, but it illustrates the potential economic payoff from institutional and business reforms.
For governments, this changes the meaning of economic diversification. Launching a tourism program, attracting a mining project or building a new industrial zone does not necessarily mean that an economy has become more diversified. A more meaningful test is whether these initiatives create competitive companies that continue to invest, hire and expand after the initial government support or commodity boom fades.
From growth to self-sustaining growth
Africa's next development phase will therefore depend less on finding another temporary source of expansion and more on improving the conditions under which capital is deployed.
The countries that succeed will not necessarily be those with the largest resource deposits or the biggest public investment programs. They will be the ones that can use public capital to build infrastructure and human capital while creating enough certainty, competition and market access for private companies to invest at scale.
That is a harder task than simply increasing government spending during a commodity upswing. It also explains why the IMF's growth reset matters beyond macroeconomic policy. It is ultimately a question of whether African economies can move from growth that depends on cycles to growth that generates its own momentum.
Africa's challenge is no longer simply to generate economic growth. It is to make that growth self-sustaining.
