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Inflation or recession? Tug-of-war grips bond markets

Source: economist.com

TL;DR

Bond yields worldwide have swung wildly since the American-Israeli war on Iran began on February 28th.
US 10-year Treasury yield jumped from below 4% to over 4.4% by late March, then fell back; similar spikes in UK (5.1%), Germany (3.1%), Japan (2.4%).
Inflation from energy shocks pushes yields up, while growth slowdown risks pull them down, creating uncertainty for central banks and borrowers.

The story at a glance

Government borrowing costs have been volatile since the American-Israeli war on Iran started on February 28th 2026. The 10-year US Treasury yield, a key global benchmark, rose from below 4% to above 4.4% by March 27th before easing. This tug-of-war reflects clashing fears of war-driven inflation and possible recession, affecting yields from American Treasuries to British gilts, German bunds and Japanese bonds. The piece analyses this via recent OECD forecasts and bond market moves.[[1]](https://www.economist.com/finance-and-economics/2026/04/05/inflation-or-recession-the-tug-of-war-in-bond-markets)

Key points

Yield on 10-year American Treasury bonds, called the world's most important number, has whipsawed for weeks, with even basis-point changes mattering as it sets costs for mortgages and corporate debt.
On February 27th eve of war, US 10-year yield below 4%; hit over 4.4% by March 27th; recently dropped, but difference means affordability for homebuyers.
Not just America: Britain's 10-year gilt topped 5.1% on March 23rd (highest since 2008); Germany's bund 3.1% (top since euro debt crisis); Japan's 2.4% (first since 1997).
Two opposing forces: inflation fears (from war, oil shocks) make bondholders demand higher yields to offset erosion and expected rate hikes; recession worries lead to lower yields as growth stalls and policy eases.
OECD updated forecasts post-war: raised Britain's inflation by most, cumulative two percentage points over 2026-2027; gilts up over 0.4 points since year start, more than other G7.
Canada saw smaller inflation hike (0.3 points), so 10-year yields barely moved; energy importers like India face similar yield jumps.

Details and context

The war has disrupted energy supplies, pushing oil prices up and stoking inflation via higher input costs. OECD's March forecasts, versus December, show upward revisions across rich countries, with Britain hit hardest due to energy import reliance.[[2]](https://www.linkedin.com/posts/clemencekierankng_economist-article-titled-inflation-or-recession-activity-7446716642069430272-o8xE)

Bond markets reflect this tension: higher inflation expectations raise yields (prices fall), but if conflict slows global growth—via trade hits or confidence drop—yields fall as investors seek safety and bet on rate cuts.

Recent reports confirm volatility: Treasuries erased early war gains as growth fears returned, while global bonds flat YTD after March selloff on inflation angst.[[3]](https://www.bloomberg.com/news/articles/2026-04-02/treasuries-fall-as-trump-s-iran-threats-add-to-inflation-concern)[[4]](https://www.bloomberg.com/news/articles/2026-03-12/global-bonds-erase-2026-gains-as-war-fuels-inflation-angst)

Key quotes

None reliably sourced from full article.

Why it matters

Bond yields shape borrowing across economies, from government debt to household loans, amplifying war's fiscal strain amid rising deficits. Investors and households face higher mortgage and corporate costs if inflation dominates, but recession could bring relief via cuts—though at growth's expense. Watch oil prices, OECD updates, and central bank signals like Fed moves, as war duration remains unclear.