A national housing crisis is brewing. What can be done to stop it?

Housing is sputtering. Home sales, home-building and homeownership have gone flat, and the rise in home prices threatens to stall out. Things aren't likely to get better soon, particularly for lower- and middle-income households struggling to make the rent and become homeowners. That is, unless policymakers act.
Housing statistics are clear. Sales of new and existing homes have gone sideways over the past year, as has new single- and multifamily home-building. Housing prices are still rising in