“A default is not free,” said Jaime Abut, a business consultant in Rosario, a city north of Buenos Aires. “You have to pay the consequences, and for a long time. Argentina is no longer considered a serious country.”

Krugman nails that quote there, asking “shouldn’t that be a Serious country?” Indeed. But why does the Times think Argentina needs to be back in the global credit market? It’s grown at 8 percent a year for eight years without being in the global credit market!

Of course, Greece is a different country than Argentina. It has different circumstances, including membership in the euro, which it would have to quit in order to do the devaluation it needs to recover (it also has a vastly higher debt-to-GDP ratio). But the Times does a remarkably poor job here of showing how the lessons of Argentina’s default might apply to Greece.

From what I can tell the main one is: Go for it.

And while this is an unfortunately sharp departure from the Times’s normal standards, it’s nice to see that Krugman feels free to take on his own paper. I understand Krugman is untouchable, but it’s still a healthy thing.

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Ryan Chittum is a former Wall Street Journal reporter, and deputy editor of The Audit, CJR's business section. If you see notable business journalism, give him a heads-up at rc2538@columbia.edu. Follow him on Twitter at @ryanchittum.