Krugman on the 1938 crash

Krugman writes as if economists really believe that it was the lack of government spending that caused the "depression in the depression" in 1938.

Now, we weren’t supposed to find ourselves replaying the late 1930s. President Obama’s economists promised not to repeat the mistakes of 1937, when F.D.R. pulled back fiscal stimulus too soon. But by making his program too small and too short-lived, Mr. Obama did just that: the stimulus raised growth while it lasted, but it made only a small dent in unemployment — and now it’s fading out. . . .

I realize that someone such as Krugman might be unaware of Milton Friedman's work, but it might be useful if Krugman tries to look at these this work before he continues giving readers of his column the wrong impression. A simple discussion of what Friedman found is available here.