Who's right, Paul Krugman...

...or the advocates of austerity? I don't know, but a front page article in the New York Times today about Ireland offers a cautionary tale (my emphasis):

As Europe’s major economies focus on belt-tightening, they are following the path of Ireland. But the once thriving nation is struggling, with no sign of a rapid turnaround in sight.

Nearly two years ago, an economic collapse forced Ireland to cut public spending and raise taxes, the type of austerity measures that financial markets are now pressing on most advanced industrial nations.

“When our public finance situation blew wide open, the dominant consideration was ensuring that there was international investor confidence in Ireland so we could continue to borrow,” said Alan Barrett, chief economist at the Economic and Social Research Institute of Ireland. “A lot of the argument was, ‘Let’s get this over with quickly.’ ”

Rather than being rewarded for its actions, though, Ireland is being penalized. Its downturn has certainly been sharper than if the government had spent more to keep people working. Lacking stimulus money, the Irish economy shrank 7.1 percent last year and remains in recession.

Joblessness in this country of 4.5 million is above 13 percent, and the ranks of the long-term unemployed — those out of work for a year or more — have more than doubled, to 5.3 percent.

Now, the Irish are being warned of more pain to come.