Is the natural interest rate rising, keeping long-term yields elevated?
Core argument: Bloomberg Economics calculates the natural rate of interest has risen from a nadir of 1.7% in 2012 to about 2.5% in 2024, and projects 2.8% by 2030, keeping the ten-year Treasury yield between 4.5% and 5%.
The retirement of the baby boomers, the end of the savings glut from China and the petrostates, and more borrowing from governments have changed the arrow on the natural rate from down to up. Bloomberg Economics calculations suggest it has already climbed from a nadir of 1.7% in 2012 to around 2.5% in 2024. Based on plausible trajectories for demographics, debt and other factors, it will climb to 2.8% by 2030 — keeping the ten-year Treasury rate lodged between 4.5% and 5%. Climate change always seems to be the challenge of tomorrow, never today. If the US does get serious about decarbonization, Bloomberg NEF puts the cost of transitioning to clean energy at $10 trillion. AI holds out the promise of a step change in growth — getting there will require massive investment in data centers, the power grid, and reconfiguring the way factories and offices work. Higher military spending will make it hard for governments to get their fiscal houses in order. If all of those forces collide, the impact could be even higher borrowing costs — with the natural rate above 4% and the ten-year Treasury at a nose-bleed inducing 6% or higher.





