Rent control is a limit on margins. That makes it a declaration that builders can only scale up profits on volume, which is what is necessary anyway in regions

Rent control is a limit on margins. That makes it a declaration that builders can only scale up profits on volume, which is what is necessary anyway in regions that are largely built out but still massively short of supply. Which means that it’s aligned with the goals and even predicted dynamics to the point where it’s little more than a formalized constraint. Complaining about it is basically an admission that either other more important factors are keeping supply from happening or that the purported market benefits if/when it does might not be real. Quite possibly both. As far as I can tell even when there are no obstacles the market isn’t interested in adding supply to the point of diminishing marginal returns, and unit prices do not fall on supply movement, only demand drops.