Our biggest challenge is to eliminate the popular perception that economists don't have anything useful to say.

The FHA's success provides strong evidence that government can and should play a role in the nation's mortgage finance system. It also demonstrates that although government intervention in the economy during the Great Recession was messy, things would have been a lot messier without it.

A housing renaissance has begun. This may be hard to believe after the dizzying, six-year-long crash in home sales, construction and house prices. But housing turned the corner last year, and it will take off in 2013.

It is hard to be enthusiastic about the economy's prospects when house prices are falling: Households spend less, small business owners can't use homes as collateral for loans and local governments are forced to cut jobs and programs as property-tax revenue disappears.

Global central banks are working hard to lift their economies through an aggressively easy monetary policy. The ECB [European Central Bank] and BOJ [Bank of Japan] are buying tens of billions of bonds and other financial securities each month in an effort to stimulate their economies, which is pushing down rates everywhere, including in the U.S.

The Obama administration deserves credit for quickly ending the housing free fall. In particular, Obama empowered the Federal Housing Administration to ensure that households could find mortgages at low interest rates even during the worst phase of the financial panic.

The discussion in Washington has changed dramatically. I mean, it's no longer a question of should we address entitlements - it's no longer a question of do we need to reduce spending in the future.