Boomers stay home for retirement?

Bottom line: The total number of homes for sale is about as low as it's ever been. Inventory listed on realtor.com in the first six months of 2018 is 18.2% lower than the same period in 2015. The sheer number of homes on the market in January 2018 was only 6.2 million, according to U.S. Census—a gigantic drop-off from the 14.3 million total in January 2009. Current inventory levels are comparable with what they were in the early '60s, when the Census started collecting the data and the U.S. had roughly half its current population.Yikes. The shrinking number of homes available means more bidding wars, bigger price hikes, and less selection. And this isn't something that is limited to a handful of places. Of the 50 largest markets, 39 saw a decrease in inventory over the past three years.

Supply shortage, and rents are rising.  About 2/3 of the market, and folks need to move to the other 1/3.  There is one bias. In places like Detroit, we have been doing a bit of Say's Law and eliminating entire neighborhoods via bulldozer.