[kaybe]

I don't think they're going to move that easily. Rent has been going so much it is eating a larger income share than before for many of them too.

So what that leaves you with is disproportionate increase of demand and prices for smaller cheaper units.

[jdreyfuss]

Yes, this fits closer to reality. Most people want to spend as little as possible on rent for a situation that matches their needs. Just because fancier apartments become available at higher prices doesn't mean people will move into them from a cheaper place just because they can technically afford it. Plenty of people rent apartments below their "I can afford this" level in order to use that money elsewhere or save up for a future house.

Building luxury housing doesn't push prices lower on the bottom half of the housing spectrum, it just makes the top end higher. "Trickle down" housing takes way too long to be realized, while subsidized housing has a much stronger and immediate impact[0]

[0]https://www.urbandisplacement.org/sites/default/files/images...