Cross-references:
You Can't Soak the Rich [Regardless of tax rates, federal tax revenue is always 19.5% of GDP] - FR / WSJ, 2008 September 22, by David Ranson
We are on The Laffer Curve - FR / Science Mag, 2009 September 16, S. Carroll
Hauser's Law together with the Laffer Curve is a very powerful combination.
Thanks for that, hopefully someone brighter than I will find some more current info on the GDP and post