Are fiscal deficits replacing central banks as the driver of long-bond yields?
Core argument: Japan's 30-year yield jumped the most in two months, leading a global long-bond selloff, while 30-year German bund yields flirted with their highest levels in 14 years and US 30-year yields touched a one-month high.
Yields for long-term debt from Japan and Germany to the UK and France rose on Monday as growing concern over widening fiscal deficits dented demand. The yield on Japan’s 30-year notes jumped the most in two months and those on similar-maturity German bunds flirted with their loftiest levels in 14 years. For these countries fiscal concerns are usurping central-bank interest-rate policies as the main factor to watch. While the selloff is less pronounced in the US, 30-year yields there still touched the highest in a month. Japanese election largesse and Donald Trump’s weekend tariff announcements were the immediate cause of the latest nudge higher. They tapped into deeper concerns about excessive government debt, fire-hose spending, too many bonds coming to market, and inflation that’s still much too sticky in developed markets around the world.

