I’m often dubious about Paul Krugman, since his opinions are often tinged by his political slant. For example, he was on “Team Transitory” regarding inflation in 2021, which he has since regretted. But, since he won a Nobel Prize in economics, I read his columns while maintaining my own independent thinking.
Krugman has learned a little humility from his inflation mistake but he does make some good points.
https://www.nytimes.com/2022/11/18/opinion/interest-rates-fed.html
Wonking Out: Why Interest Rates (Probably) Won’t Stay High
By Paul Krugman, The New York Times, Nov. 18, 2022
…
I still believe that rates will eventually revert to their lows of the 2010s, even though rates have risen since I made that argument. [Shucks, just like inflation rose after Krugman made the argument that it would recede. --W]…
The Covid-19 surge in deficits is now behind us. Those C.B.O. estimates do say that deficits will remain somewhat high by historical standards, but nowhere near the levels they hit in 2020-21. …Eventually, the boost to the economy from pandemic aid will fade away. And once that happens, we’ll probably be back where we were before the pandemic, with weak private investment demand holding interest rates down…
One well-known concept in macroeconomics is the accelerator effect. This says that investment spending generally reflects not the level of G.D.P. but the expected change in G.D.P. The logic is that investment spending is only high when businesses want to increase their capacity, which happens only when demand is growing…
[snip demographic reasons why demand isn’t growing and the CBO’s prediction of 1.5% annual GDP growth]
A few years from now, we’ll probably be back to a situation in which too much saving is chasing too few investment opportunities, and interest rates will be revisiting their old lows. [end quote]
OK, I buy the argument that growth will slow due to demographics (growing retired population, fewer workers since birth rates and immigration have dropped).
But the ultra-low interest rates were forced by the Fed in response to crises. After this inflation scare abates (which may take longer than anyone expects) the Fed intends to target a neutral fed funds rate, not a stimulative rate. That puts a higher floor under all rates.
Without the Fed’s massive monetary stimulus all assets (stocks, bonds, real estate) will lack the constant growth in prices. Government borrowing will crowd out productive borrowing, pushing long-term interest rates higher.
So, Krugman may be right. Interest rates may fall, eventually. But it may take longer than he expects (he didn’t publish a timeline) and the rates may normalize to their historic pre-2000 real level of about 2% over inflation.
Wendy