NEW YORK, July 26 — A subtle but powerful shift is underway in the global economy, one that could reshape the financial lives of savers, borrowers, and retirees for years to come. New analysis from JPMorgan suggests that the forces that kept interest rates unusually low after the 2008 financial crisis — a surplus of global savings and a growing workforce — are fading. If that trend holds, central banks may need to keep borrowing costs higher than markets have come to expect.
The concept at the heart of the forecast is the “equilibrium” or “neutral” interest rate — the level that neither stimulates nor restricts the economy. After the 2008 crisis, the neutral rate fell sharply, allowing central banks to keep policy rates near zero for years.
JPMorgan now warns that as the demographic dividend (the economic boost from a large working-age population) wanes and the global savings glut recedes, the neutral rate will rise. For the Federal Reserve, that has immediate implications. As of mid-2024, the fed funds rate stood in a range of 5.25-5.5%.
Many investors assumed the Fed would cut that rate significantly once inflation cooled. But if the neutral rate is higher than previously thought, current policy may not be as restrictive as it appears.
The Fed, in that scenario, would have less room to cut without re-igniting overheating.
Bonds, growth, and the long view
The bond market could see a lasting shift. JPMorgan projects that 10-year Treasury yields may settle in a 4-5% range over the coming decade, a stark contrast to the 2-3% that prevailed after the Financial Crisis. That matters for anyone with a mortgage, a pension, or a retirement account.
On the growth front, the toll of aging populations is expected to be significant. The International Monetary Fund estimates that in developed economies, the shrinking share of working-age people could reduce potential GDP growth by 0.5 to 1 percentage point per year.
That may not sound like much, but compounded over a decade, it represents hundreds of billions of dollars in lost economic output. Yet the picture is not entirely bleak. JPMorgan and others point to potential offsets.
Automation and artificial intelligence could boost productivity, making each worker more valuable. Increased immigration could help replenish the labor force.
And higher interest rates themselves might attract more savings from households and foreign investors, partially reversing the savings glut.
Too much debt, too little saving?
The forecast has stirred debate among economists. Some argue that the real problem is not a shortage of saving but an excess of debt. High levels of government, corporate, and household debt can suppress spending and demand, which in turn keeps interest rates low.
If that view is correct, rates could stay subdued even as the population ages. For now, JPMorgan’s baseline points to a world of sustainably higher rates.
That means retirees who rely on bond yields may finally get a meaningful income stream again. It also means younger homebuyers and businesses borrowing to expand will face steeper costs. The human side of this story plays out in living rooms and boardrooms — in decisions about when to buy a home, how much to save, and where to invest.
What to watch next: the Fed’s own estimates of the neutral rate, which it updates periodically. If those estimates start to climb, it will be a sign that the world’s most powerful central bank sees the same forces JPMorgan does.
Until then, the debate between the savings-glut camp and the too-much-debt camp will continue to ripple through financial markets.
Sources
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