They are a cause, but they're exacerbated by high housing prices that are in turn caused by land restrictions: https://news.ycombinator.com/item?id=29193206 htt

They are a cause, but they're exacerbated by high housing prices that are in turn caused by land restrictions: https://news.ycombinator.com/item?id=29193206 https://news.ycombinator.com/item?id=29193206