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Africa’s ‘idle trillions’ are already hard at work


A seductive number was set loose in African policy circles in recent months. The Africa Finance Corporation (AFC) reported in April that the continent’s domestic (non-bank) capital pools had surpassed two trillion dollars, eclipsing a decade of foreign inflows.

The careful version of this claim is noteworthy: It reframes Africa as the agent of its own financing. With care and diligence, continental savings can be transformed into powerful investments.

But it was the careless version of this point that grabbed headlines and is now ricocheting through summit halls as a call to “mobilize idle savings” to close Africa’s infrastructure gap. This is the most expensive misunderstanding in the continent’s development debate. There are no idle trillions. The money is already heaving and panting, doing all sorts of work. Redirecting it means being very clear about trade-offs and sacrifices.

Worse, the “two trillion” is a stock accumulated over decades, and most of it isn’t actually redirectable. Strip out what is legally immovable (e.g., bank deposits hedged by liquidity rules and reserves that must stay liquid and offshore), and the four-trillion-dollar gross figure shrinks to roughly $300 billion that could plausibly move, which is about a thirteenth of the headline.

Regarding what can be redeployed, let’s start with pension funds, the most vivid chunk of these “idle trillions.” Nigeria’s pension funds, for instance, in April 2026, held 77% of their assets in government securities. That simply means that the government has borrowed the money to fund everything from salaries to school blocks. A similar pattern repeats across the continent because the arithmetic is pretty basic. African governments can either borrow from foreigners or from their citizens and companies. Redeploying into infrastructure does not create new money. It simply requires a national fight about what government services to cut.

Every act of redirection is an act of defunding with immense political-economy implications. Move funds out of government bonds, and you either impose fiscal austerity or increase dependence on foreign creditors. At any rate, a large share of the existing government fiscal burden in Africa stems from exposure to infrastructure contractors. In Ghana, for example, some collapsed banks blamed their plight on this very issue.

And even if we assume that private infrastructure funds could do a better job with the money currently going into government debt, the continent’s experience is that such funds often call on the government to guarantee the same projects, thus re-importing the sovereign risk.

Run that logic across the big pension systems, and a 10-point shift frees about $30 billion on paper across Africa but barely $16 billion in genuinely new money once the state re-borrows from the same savings pool. Roughly half the celebrated redirection is a change of clothes.

In any case, Africa’s infrastructure gap is estimated at a high of $150 billion per year. Pension funds, meanwhile, are a stock. So, a one-off redeployment merely plugs about 11% of one year’s gap. But for just that one time.

Nor would an unsentimental investor want the swap. Calibrate a standard portfolio optimization to African conditions (i.e., double-digit sovereign yields, and infrastructure whose cash flows depend on the same state, through utility offtakes, regulated tariffs, and treasury guarantees), and you are very likely to arrive at a model that advises pension or insurance fund managers to invest 85% in government bonds and under 3% in infrastructure. If you stubbornly force 15 points into infrastructure, downside risk rises rather than falls, because the “new” asset merely concentrates the sovereign exposure the fund is already grappling with.

The charge that African funds are uniquely timid is a bit harsh: Even the world-leading Canadian and Australian funds hold only about 10-11% in infrastructure, against a global average near 5%. In hyper-capitalist America, the number is barely 1%. The continent’s allocators need a bit of slack.

At any rate, the domestic political economy is punishing. Kenya’s debt service hit 71% of ordinary revenue in 2024-25. When Kenyan protesters forced the abandonment of a tax-raising finance bill in 2024, the state, unable to cut, pivoted straight to the domestic market, where Treasury bonds swelled by some 688 billion shillings in nine months. The government thus absorbed the very savings the “idle trillions” thesis wants pointed at infrastructure.

The AFC is right that the continent must lean on its own resources. But the binding constraint is the one the report carefully unpacks. At the core of the issue is the absence of bankable instruments that genuinely de-link a project’s cash flow from the sovereign. That demands unglamorous work, such as guarantee facilities, project-preparation pipelines, and deeper capital markets. The continent’s infrastructure gap of over $100 billion a year will not be closed by redeploying a stock that, honestly measured, would cover under three years of annual shortfalls before running dry.

Investors, ministers, and trustees should treat the two-trillion figure as a prompt to build pipes and flee from the temptation of joining the chorus to drain a reservoir already under great strain. 

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