Krugman on the need for debt and deficit

Paul Krugman, in Money for Nothing, explains why Government debt and deficits are not currently a problem in the USA and why interest rates on that debt has gone down. He does on to write:

So what is going on? The main answer is that this is what happens when you have a “deleveraging shock,” in which everyone is trying to pay down debt at the same time. Household borrowing has plunged; businesses are sitting on cash because there’s no reason to expand capacity when the sales aren’t there; and the result is that investors are all dressed up with nowhere to go, or rather no place to put their money. So they’re buying government debt, even at very low returns, for lack of alternatives. Moreover, by making money available so cheaply, they are in effect begging governments to issue more debt.

And governments should be granting their wish, not obsessing over short-term deficits.

Obligatory caveat: yes, we have a long-run budget problem, and we should be taking steps to address that problem, mainly by reining in health care costs. But it’s simply crazy to be laying off schoolteachers and canceling infrastructure projects at a time when investors are offering zero- or negative-interest financing.

You don’t even have to make a Keynesian argument about jobs to see that. All you have to do is note that when money is cheap, that’s a good time to invest. And both education and infrastructure are investments in America’s future; we’ll eventually pay a large and completely gratuitous price for the way they’re being savaged.

That said, you should be a Keynesian, too. The experience of the past few years — above all, the spectacular failure of austerity policies in Europe — has been a dramatic demonstration of Keynes’s basic point: slashing spending in a depressed economy depresses that economy further.

I think it's worth emphasising Krugman's point that the USA needs to do something about their deficit, but not now. Right now they need to stimulate their economy, not depress it.