Earlier quoted context omitted.
Lack of building is not the problem - on the contrary. You cannot realistically build enough so that the rents decrease. And when you build you just fuel the vicious cycle of people -> opportunities -> people.
> You cannot realistically build enough so that the rents decrease. I'm curious what makes you think this. Suppose you built twice as many housing units as you had residents. Rents wouldn't decrease? Why not? Or do you think that a sufficient amount of housing wouldn't fit? For reference, the San Francisco metro area has ~7.5M people in an area of ~3500 square miles. With housing at the population density of Manhatta…
> I'm curious what makes you think this.
> Suppose you built twice as many housing units as you had residents. Rents wouldn't decrease? Why not?
It seems entirely logical that rents should decrease.
Not the OP but I do always question this, despite sounding logical. Why? Because it has never worked that way in practice. Can you think of a city that built so much housing that rents became cheap (relative to local income)?
It's easy to say "built twice as many housing units as you had residents" and I agree if you could do that overnight, rents would free-fall. But in practice it would take years to build so much housing. Meanwhile, more and more people and jobs are moving in, attracted by all that new housing. The area becomes ever more popular and more expensive. So you end up with a city that is more vibrant, with a lot more people and a lot more jobs and economic activity. All good things, but rents don't go down, given all this success rents go up.