The key to house prices is the share of foreclosure or short sales in the total housing market. When that share rises, house prices will fall, because distressed properties sell for significantly less - currently around 25 percent below non-distressed houses.

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

No one should expect the value of their house to appreciate quickly - counting on your home to be a significant part of your retirement saving isn't a winning strategy - but it is reasonable to expect that prices generally will rise with at least the rate of inflation for some time to come.

The key to house prices is the share of foreclosure or short sales in the total housing market. When that share rises, house prices will fall, because distressed properties sell for significantly less - currently around 25 percent below non-distressed houses.

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.

They called me the sexiest economist in America, and that was years ago, when I had hair and body mass and my teeth were shiny.