The effects of rent-restriction you quote are theoretical effects. In the real world, it does work, as long as the rent-restrictions are well-thought-out.
Are you sure? There's lot of research n rent control and it basically all highlights decreased housing mobility, event he pro rent control authors mention it asa downside.
Secondly, landlords are allowed to evict if they do sufficient improvements to the property, which allows a safety valve.
There are so many people that move in the month of July, that over 7% of the entire population - including people who don't rent - moves out on that day. It's pretty much impossible to get a rental truck to move for the entire month of July.
The statistics are that, around July 1st alone, 250 000 out of 900 000 people move. Add in people that don't move in this period, and you get almost half of renters in the entire city moving, despite strict rent control.
You just need to do your rent control carefully. There will be some reduction in mobility, but if you counterbalance them, you can have minimal impacts in mobility and large impact in affordability.
> landlords are allowed to evict if they do sufficient improvements to the property
This is a REALLY unusual provision in rent stabilization laws in the US and as far as I know the EU which normally don't allow evictions like this and severely cap rent increases for improvements.
If you are in Quebec, the RDL is really unique as a form of rent control in that it doesn't set prices or cap increases but rather acts as an arbiter for rent increase disputes. I understand that there are some local criticisms of the system, but I'm not very well versed on the subject.
I think most HN comments about rent control are referring the type that exists in SF where prices are more or less locked in place or otherwise set by the government.
It's important to note that even according to your article, you need to drastically increase supply even for a modest decrease in rent.
No one here is against increasing density. It is however insane to believe that increasing density is enough to fix the problem. Cities at the edge of density still have affordability issues, whereas much less dense cities with appropriate rent restrictions don't.
There is not a single reference to induced demand here. As long as housing stays a profitable investment, and as long as density cannot be increased infinitely without increasing marginal costs, then rent will rise.
The only long term solution is to reduce the profitability of speculation on land prices, so that only productive activities, such as building, are profitable. Rent restrictions are part of this, as rent is a large part of the profitability of land.
And rent restrictions can work. There are many cases where they have been implemented without a significantly negative impact to mobility. So why oppose them?
> enough to fix the problem
I think we need to define the problem before we start arguing solutions. In my view "can't afford the rent" is a poverty problem, not a rent prices problem. So, I want anti-poverty solutions, not rent price adjustment solutions. I view "the rent is too high" as a distinct problem from "can't afford the rent." So in my mind, rent price adjustments via price regulation are inappropriate for both problems.
> so that only productive activities ... are profitable
I understand taxing negative externalities, but this sounds anti-democratic. Who decides what's productive? Let's put an appropriate tax on pollution (broadly defined) and let the market figure out what's most productive. That's what it's good at.
> why oppose them?
I don't know of any instances where rent control didn't affect mobility. Are you considering the effect on immigration and wages in other cities? If they didn't affect mobility, then almost by definition they had no effect whatsoever. They'd have to be covering such a tiny portion of the market that they can essentially be ignored, both cost and benefit. Which makes them a waste of bureaucracy.
