Showing posts with label revision. Show all posts
Showing posts with label revision. Show all posts

Thursday, October 14, 2010

Jobless claims revisions


Click on graph to enlarge

http://www.zerohedge.com/sites/default/files/images/user5/imageroot/shirakawa/BLS%20Revision%20Update.jpg

Normally, when data is revised, it averages out to some points being revised up if the initial data is too low, and some points being revised down if the initial data is too high. Over time, there is a regression to the mean, which is a neutral value of zero.

But after looking at the chart above of initial and continuing jobless claims, we find that upward revisions occur 75 out of 76 weeks. The odds of this happening by coincidence are statistically impossible. Obviously, there is a persistent bias to publish data which understates the true unemployment picture.

The Bureau of Labor Statistics should rename themselves the Bureau of Lies and Statistics.

Thursday, February 4, 2010

Lies, lies and more unemployment statistics

Uh-oh, more jobs were lost than what old official unemployment statistics showed. The new revision coming out this week will detonate like a big turd bomb.

http://www.bloomberg.com/insight/birth-death-model.html