A major global bank is sounding the alarm on a quiet but growing risk: as government debt piles up and bond yields stay elevated, the financial cushion that policymakers once relied on to fight recessions is getting thinner.
For decades, governments and central banks had a reliable playbook when the economy stumbled — cut interest rates sharply, borrow heavily, and spend their way back to growth. That cushion is shrinking, according to a new assessment from Deutsche Bank, which warns that rising debt loads and persistently high bond yields are wearing away the policy tools available to fight the next downturn.
The concern is straightforward. When governments carry large amounts of debt, paying interest on that debt eats up a bigger share of their budgets. At the same time, higher bond yields — the interest rate governments pay when they borrow — make adding new debt more expensive. Together, these forces leave less room for big stimulus programs if growth slows or a crisis hits.
Bond yields have remained elevated across much of the developed world, partly because inflation took longer to cool than expected and partly because investors are demanding higher returns to hold large volumes of government debt. That shift has been most visible in long-dated bonds — ones that mature in ten, twenty, or thirty years — where yields have climbed meaningfully from the historic lows seen in the years following the 2008 financial crisis.
The dynamic raises a deeper question about what economists call the “fiscal space” — essentially, how much a government can borrow and spend in an emergency without alarming investors or pushing yields even higher. If that space is limited, a future recession could be harder to fight, and recovery could take longer.
Central banks face a related bind. After raising rates aggressively to fight inflation, they now hold less room to cut quickly if growth turns sharply negative. And with debt already high, the expectation that governments will ride to the rescue with massive spending programs may be optimistic.
This is not a new worry, but it is becoming more urgent. The International Monetary Fund and others have flagged rising sovereign debt as a long-term risk to financial stability. What Deutsche Bank’s warning adds is a sharper focus on timing: the fraying is happening now, before the next shock has arrived.
Bond markets and government budget outlooks across major economies will be key indicators to watch as debt levels and yields continue to interact.
