Paul Krugman, trying very hard..........

..................to be an optimist:

But the economy is depressed, in large part, because of the housing bust, which immediately suggests the possibility of a virtuous circle: an improving economy leads to a surge in home purchases, which leads to more construction, which strengthens the economy further, and so on. And if you squint hard at recent data, it looks as if something like that may be starting: home sales are up, unemployment claims are down, and builders’ confidence is rising.

Furthermore, the chances for a virtuous circle have been rising, because we’ve made significant progress on the debt front.

That’s not what you hear in public debate, of course, where all the focus is on rising government debt. But anyone who has looked seriously at how we got into this slump knows that private debt, especially household debt, was the real culprit: it was the explosion of household debt during the Bush years that set the stage for the crisis. And the good news is that this private debt has declined in dollar terms, and declined substantially as a percentage of G.D.P., since the end of 2008.

Full essay here