I’ll let my comments I made on the blog stand there, but I’ll add some more here.
From Krugman’s piece:
So here we are, three years later. How’s it going? Inflation has fluctuated, but, at the end of the day, consumer prices have risen just 4.5 percent, meaning an average annual inflation rate of only 1.5 percent. Who could have predicted that printing so much money would cause so little inflation? Well, I could. And did. And so did others who understood the Keynesian economics Mr. Paul reviles. But Mr. Paul’s supporters continue to claim, somehow, that he has been right about everything.
I believe Krugman’s methodology is flawed and leads to incorrect conclusions. I don’t believe it’s reasonable to look at aggregate price inflation over the three years and simply divide by three to make the conclusion he does. His math is correct, obviously, but I believe his methodology is ill-conceived. Why?
You have to remember, each of the last three years have been distinctly different economically speaking. Starting in 2008, one of the Fed’s stated goals was to slow monetary growth. I think that continued well into 2009. Combine that with consumers cutting their household spending to either save for a rainy day or pay down debt, and you have a recipe for flat or minimal inflationary pressures, as you don’t have as much $$ chasing goods, which traditionally would cause prices to rise.
Now if you look at more recent times, I think you’ll see a different tale. Just so happens there was a CPI release today (http://bls.gov/news.release/cpi.nr0.htm):
Over the last 12 months, the all items index increased 3.4 percent before seasonal adjustment.
That’s quite a bit more than the 1.5% per annum Krugman proffers. His figures are off because he’s using a moving average to “smooth” the plot so he can more effectively make his point that the Austrians were wrong. His moving average paints a much different picture that the reality.
I call foul. He should know better.