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Global bond rout sends long-term borrowing costs to multiyear highs

financeAug 18, 202616334

Long-term government bond yields climbed to multiyear highs as 30-year US Treasury yields reached 5.33% on Tuesday, the highest since June 2007, while UK long-term debt hit 5.85%; similar moves occurred in Germany and Japan. Rising Brent crude topped $90 on Tuesday after growing tensions around the Middle East and disruptions to the Strait of Hormuz, pushing investors to price a higher inflation risk. Oxford Economics lead analyst John Canavan attributed the sell-off to inflation risk from higher oil, large government debt levels and uncertainty over vast AI spending and when those investments will pay off. Higher bond yields translate into higher mortgage, car loan and corporate borrowing costs because investors demand bigger returns when they expect inflation or policy tightening. Canavan warned that sustained higher yields could add to inflationary pressures and in the longer term slow economic growth. In the UK bond investors pushed back over fiscal plans, prompting Prime Minister Andy Burnham to reaffirm commitment to existing borrowing limits known as fiscal rules. The rout raises the prospect that central banks may need to raise interest rates, which would further increase borrowing costs for consumers and governments and complicate economic policy choices.

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