Too-easy credit and millions of bad loans made during the U.S. housing bubble paved the way for the financial calamity and Great Recession that followed. Today, by contrast, credit is too tight. Mortgage loans are particularly hard to get, creating a problem for the housing market and the broader economy.

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.

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 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.

Investor demand for distressed property has been healthy, as rents rise to levels that can cover investors' costs while they wait for properties to appreciate. Giving investors a small tax break should further juice up demand, supporting prices for distressed homes and the market in general.

Predicting recessions is indeed a dark art, but I think we are several years away from the next one.

Distressed properties are often vacant and in disrepair, and thus sold at significant discounts. As the share of distressed sales grows, home prices fall.