Isn't This How We Got Into This Mess in the First Place?

Avent writes, "What should the government be doing? Well, for starters, it should recognize that the housing crash has meant an increase in the relative price of center city homes, which were already unaffordable for many families before the bust. It is important to provide opportunities for affordable center city housing (for its own sake, and to reduce the rush of lower-income families to the fringe), and that means encouraging construction in center cities."