Noting that academic studies that "supposedly justified austerity" had recently lost some credibility, Paul Krugman observes:
Families earn what they can, and spend as much as they think prudent; spending and earning opportunities are two different things. In the economy as a whole, however, income and spending are interdependent: my spending is your income, and your spending is my income. If both of us slash spending at the same time, both of our incomes will fall too.
And that’s what happened after the financial crisis of 2008.
So what could we do to reduce unemployment? The answer is, this is a time for above-normal government spending, to sustain the economy until the private sector is willing to spend again. The crucial point is that under current conditions, the government is not, repeat not, in competition with the private sector....
Now, just to be clear, this is not a case for more government spending and larger budget deficits under all circumstance.... [T]he economy isn’t always like this — in fact, situations like the one we’re in are fairly rare. By all means let’s try to reduce deficits and bring down government indebtedness once normal conditions return and the economy is no longer depressed. But right now we’re still dealing with the aftermath of a once-in-three-generations financial crisis. This is no time for austerity.