Earlier quoted context omitted.
I'm not speculating at all. The article has the data to back the facts : house prices went down in Berlin. Yes, homes can go up on speculation alone, but this is a bubble that will pop. In North America, rising rents act as a backstop that prevent the bubble from popping, because of guaranteed rental incomes that protect you. It's not possible to create an insane level of supply for appartment rentals. There's two re…
>Secondly, studies have shown that 10% increases in supply lead to 1% decreases in price, more or less. Source? This also hand waves the fact that a 1% decrease is still great in the face of say, a 4% increase , totaling a 5% spread — even more if factoring in inflation. Sounds like increasing supply is still one of the best ways to keep prices in check.
Even with a 5% spread, to hold off real rent increases for ten years, you'd need to increase housing by 116%. Which is completely unrealistic. This rent control policy had the same effect as reversing 12 years of rent increases, which would require you to multiply supply by 2.5 over those twelve years.
Needless to say, this is not possible.
Increasing supply is assuredly important and necessary for keeping prices in check. But it will have a much smaller impact than rent control. The main purpose it will serve is to make sure mobility is still good.