As long as collusion exists, I don't see this changing. Manhattan is more expensive than it was a 100 years ago but less people actually live there now. Not a little less either - 700,000 people less. We've built way more housing at the same time. And yes, people have more square footage per person now but the housing doubled and the population went down dramatically.
Rent is always going to go up there even if they build more. Same in other places. As long as rent setting tools exist to collude - we will see the rent not go down. You're not gonna dump $100m in new buildings and not maximize your return.
As long as collusion exists, I don't see this changing. Manhattan is more expensive than it was a 100 years ago but less people actually live there now. Not a little less either - 700,000 people less. We've built way more housing at the same time. And yes, people have more square footage per person now but the housing doubled and the population went down dramatically.
Rent is always going to go up there even if they build more. Same in other places. As long as rent setting tools exist to collude - we will see the rent not go down. You're not gonna dump $100m in new buildings and not maximize your return.