Fundamentally, the argument is "The Cost of Money is Part of the Cost of Living" (as the paper's title states).
The trillion dollar question is whether it really does.
Based on the backtesting done the paper, it spiked extremely high in late 2023, and then drastically fell to 1980s levels.
If we use Summers' argument, then the Reagan era was a high inflation era as well (as the paper itself shows).
Tbf, this is the very reason the CPI was changed. The rate of change of Cost of Goods has fallen, and incomes at the median level has risen, but housing remains expensive.
That said, lower interest rates aren't going to change squat, as the number of houses built has basically crashed to nil after 2008. There is a supply issue and it's not because of zoning - it's because financing dried up after the entire real estate financial sector collapsed in the 2008-11 period.
The Forbes contributer themselves is not a good source, as they gloss over a significant portion of the paper, and their think tank (FREOPP) is partisan [0]
P.S. I am opposed to partisan shilling on both sides of the aisle on policy related subjects. We are all on the same team - America - and we better darn act like it.
Screw the EPI and screw FREOPP.
[0] - https://www.c-span.org/video/?529864-3/avik-roy-freedom-cons...