Brad DeLong says…
Thursday, October 22nd, 2009Somewhere in the World There Must Be Someone Who Understands the Unemployment Insurance Seasonal Adjustment Factor
But it sure ain’t me:
Looking at this time series, the seasonal adjustment does look a little crazy, but I promise– it’s not that bad. Let’s go to the ten-year:
So, yes, that spike looks huge, but historically, it’s only really big. [...]