We are in a recession because people are DELEVERAGING.
A big motive for that DELEVERAGING is the fact that people realize that since their real estate isn't worth as much as it was was, their DEBT TO ICOME ratios are way out of line.
My net worth dropped about $50K, according to the RE market.
Given that my house was a rather large part of my retirement nest-egg, even though my income really has not changed, my financial situation has changed.
Ergo, my spending habits have changed.
Multiply my experience and response to it by millions of Americans and you see the result -- a moribund national economy.
Throw in the current state of affairs in Europe, and we appear to be setting up for a world wide depression.
Enough people understand that and are responding to it (by de leveraging) thus giving us a worldwide tragedy of the commons.
OIh yeah, one more factor.
The cost of living (the real one, not the CPI) is rising at about a rate of 10% annually.
That means that people are growing poorer in REAL TERMS on top of having taken a serious hit in net worth, thanks to the real estate meltdown.