Actually no. The states that don't have income taxes (Alaska, Florida, Nevada, South Dakota, Texas, Washington, and Wyoming) have seen higher growth rates, higher personal incomes, higher growth in personal incomes, and higher tax revenue growth than states that do have income taxes.
These are not the only measures of economic success. Try again.
Oh, and Arthur Laffer. Nice. Do you believe in the Easter Bunny and Santa as well? That's called begging the question via an appeal to authority. No logical fallacy goes untouched by you, does it?
Try again.
The report you cite.
http://www.itep.org/pdf/junkeconomics.pdf
Is GIGO.
They screwed up the first states I checked, Oregon verus Texas, so horribly that the rest of their conclusions are junk, since they all depend on Oregon.
In figure 2 of their report they say Oregon had a real per capita growth rate of 25.6% from 2001 to 2010, while Texas had a per capita real GSP growth rate of 4.3%.
The inflation adjuster says a 2001 dollar is worth $1.23 2010 dollars.
This little widget
http://www.usgovernmentspending.com/compare_state_spending_2001bZ0a
lets you pull up state GSP data for any year, along with population.
Oregon GSP 2001 $112.5 billion, pop 3.5 million
Oregon GSP 2010 $185.2 billion, pop 3.8 million
inflation adjust 2010 to $150.57 2001 dollars
Oregon GSP per capita, 2001, $32,143
Oregon GSP per capita, 2010, $39.623 (in 2001 dollars)
Oregon real GSP per capita growth 23.27%
Fairly close to ITEP's 25.6% (probably from population rounding
Texas GSP 2001 $762.9 billion, pop 21.3 million
Texas GSP 2010 $1,222.9 billion, pop 25.1 million
inflation adjust 2010 to $994.22 billion 2001 dollars.
Texas GSP per capita, 2001, $35,816
Texas GSP per capita, 2010 (in 2001 dollars) , $39,610
Texas real GSP per capita increase of 10.59%
The data shows Oregon growing twice as fast as Texas over this period (actually just catching up).
The ITEP paper claims Oregon grew six times faster than Texas.
That's a serious, serious error.
Also, the article you link talks about
median household income instead of average, so as long as there's no change in the middle, you could wipe out vast amounts of wealth and not see it reflected in their numbers.
ITEP also put out another article about Laffer's state-by-state analysis.
http://www.itep.org/pdf/LafferRegression.pdf
There they claim that you can't combine total state and federal tax rates (what people in each state
actually pay when comparing the effects of tax rates in different states. I would say that's an absurd argument, because even if all state tax rates were identical, yet state to state income differences existed (and thus federal tax rates), it would let you see the effects in the varying
total tax rates across the state data. Nobody actually cares how the tax collector splits up his loot. It's what they pay that affects their behavior.