Slow Boring frequently discusses academic studies and quantitative evidence around the relationship between housing supply and affordability, if you're actually interested.
But what really requires evidence is the extraordinary claim that housing is some kind of special case market where prices don't respond to supply, despite the fact that places with high supply elasticity (Texas, Tokyo, Vienna) are more affordable than places with tightly limited supply, and despite the fact that housing prices took off in the U.S. just as strict zoning became common.
Prices increased during covid because everyone was suddenly spending much more time at home and wanted more space, a home office, etc. This is well understood.
The top 1% have more money to buy everything, not just houses. But most other goods are getting more affordable over time, not less.
So where are the citations? Also you're acting like housing affordability is a US phenomenon. It's global and effects essentially all large cities worldwide, funny you mention Tokyo which has seen massive increases of housing prices compared to salaries [1]. Saying land/housing behaves like other goods completely ignores the fact that land/property is by default a limited supply asset that almost never depreciates in value, that is very different to pretty much any other good. People have shown that much of the increasing inequality highlighted e.g by Picketey is due to assets (largely land/housing)
But what really requires evidence is the extraordinary claim that housing is some kind of special case market where prices don't respond to supply, despite the fact that places with high supply elasticity (Texas, Tokyo, Vienna) are more affordable than places with tightly limited supply, and despite the fact that housing prices took off in the U.S. just as strict zoning became common.
Prices increased during covid because everyone was suddenly spending much more time at home and wanted more space, a home office, etc. This is well understood.
The top 1% have more money to buy everything, not just houses. But most other goods are getting more affordable over time, not less.