Krugman
argues that it is possible because of policy failure to spend more when spending is inadequate, leading to large unemployment and deflation. The earlier two depressions were the Long Depression (Panic of 1873 after years of deflation and instability) and the Great Depression (financial crisis of 1929-31 after years of mass unemployment).
"We are now, I fear, in the early stages of a third depression. It will probably look more like the Long Depression than the much more severe Great Depression. But the cost — to the world economy and, above all, to the millions of lives blighted by the absence of jobs — will nonetheless be immense.
And this third depression will be primarily a failure of policy. Around the world — most recently at last weekend’s deeply discouraging G-20 meeting — governments are obsessing about inflation when the real threat is deflation, preaching the need for belt-tightening when the real problem is inadequate spending.
In the face of this grim picture, you might have expected policy makers to realize that they haven’t yet done enough to promote recovery. But no: over the last few months there has been a stunning resurgence of hard-money and balanced-budget orthodoxy.
I don’t think this is really about Greece, or indeed about any realistic appreciation of the tradeoffs between deficits and jobs. It is, instead, the victory of an orthodoxy that has little to do with rational analysis, whose main tenet is that imposing suffering on other people is how you show leadership in tough times.
And who will pay the price for this triumph of orthodoxy? The answer is, tens of millions of unemployed workers, many of whom will go jobless for years, and some of whom will never work again."
