The bond reckoning, the AI mirage and Zambia's rates

Analysis

LUSAKA — The global cost of capital is the price two opposing forces — a bond reckoning and an AI investment mania — are fighting to set, and it reaches Zambian rates.

A Daily Maverick column frames the tension well: bond investors are demanding higher yields to fund ballooning government debt, while an AI capital-spending boom is soaking up investment and inflating expectations. The read here is that for a frontier borrower like Zambia, the global cost of capital is gravity — it sets the floor under every domestic rate, regardless of what happens in Lusaka.

The bond reckoning

The bond reckoning is the repricing of government debt across the developed world. The data shows large fiscal deficits in the United States, Europe and Japan have pushed the supply of government bonds up faster than demand. To clear the market, yields rise — investors demand more compensation, including a higher term premium, to hold long-dated paper.

Higher developed-market yields matter to Zambia because they raise the global risk-free rate. Research from frontier-market analysts shows every instrument prices off that risk-free rate plus a risk spread. When US Treasury yields rise, a Zambian eurobond has to offer more to compete, and the cost of any future external borrowing climbs with it.

The bond reckoning is about to meet the AI mirage — two of the largest forces in markets, pulling the cost of money in opposite directions.

— Daily Maverick, The bond reckoning is about to meet the AI mirage, 19 May 2026

The AI mirage

The AI mirage is the counterforce. An enormous wave of capital spending on data centres, chips and energy infrastructure is inflating equity valuations and absorbing investment. The analysis shows the boom assumes a return on that spending that may or may not arrive. If the productivity gains materialise, the spending is justified; if they do not, the capital is stranded.

The two forces interact. An AI boom that lifts growth and productivity could justify higher rates without a crisis. An AI boom that disappoints while bond yields stay high is the dangerous case — capital is misallocated and the cost of money stays elevated anyway. The data shows markets have not resolved which scenario they are pricing, which is why volatility in long bonds has been high.

Why this reaches Zambia

Zambia borrows in two ways that are exposed to this. The first is external: any return to the eurobond market, or new external commercial borrowing, is priced off the global risk-free rate plus Zambia's own risk premium. A higher global rate raises the all-in cost even if Zambia's credit story improves.

The second is domestic. Research from monetary economics shows the Bank of Zambia cannot set domestic rates in isolation from global conditions — if global capital is expensive, holding domestic rates too low risks capital flight and kwacha pressure. The analysis suggests the global cost of capital effectively sets a floor under how low the Bank of Zambia can take the policy rate, regardless of the domestic inflation picture.

Frequently Asked Questions

These are the questions Zambian investors and borrowers have been asking about the global rate tension and what it means at home. Short answers follow, drawn from Daily Maverick's analysis and monetary economics.

What is the bond reckoning?

In short, the bond reckoning is the repricing of government debt as heavy borrowing pushes yields up. The answer is that supply of government bonds is rising faster than demand, so yields climb to clear the market. The key is that this lifts the global risk-free rate everyone borrows off.

What is the AI mirage?

Simply put, the AI mirage is the risk that a massive AI capital-spending boom assumes returns that may not arrive. Research from market analysts shows the spending inflates valuations and absorbs investment. The data shows the productivity payoff is the open question.

Why does this affect Zambian rates?

The answer is the cost-of-capital floor. In other words, frontier borrowers price off the global risk-free rate, so a higher global rate raises Zambia's borrowing cost. Evidence from frontier-market research demonstrates the floor binds even when the domestic story improves.

Who manages Zambia's rate exposure?

The key is two institutions. According to their mandates, the Bank of Zambia sets the policy rate and the Ministry of Finance manages the debt stock and any external borrowing. Research from prior cycles shows the two coordinate closely when global conditions tighten.

How can borrowers prepare?

Analysis of rate-cycle behaviour shows borrowers should lock in fixed rates where possible, stagger refinancing rather than bunching it, and stress-test against a higher-for-longer scenario. Evidence from prior tightening cycles demonstrates that businesses which assumed rates would fall quickly were the most exposed.

What to watch

Two signals. The first is the US 10-year Treasury yield — the single cleanest proxy for the global cost of capital, and the gravity under Zambian external borrowing. The second is whether the AI capex boom starts to show measurable productivity gains, which would resolve the tension toward the benign scenario rather than the stranded-capital one.

Sources

Daily Maverick: The bond reckoning is about to meet the AI mirage. Bank of Zambia. Ministry of Finance and National Planning.