Merckx index said:
You're missing it. It's not behavior, it's math. The top 1% paid a higher percentage of their income in taxes because a higher % of their income was in the highest tax brackets. As I said before, if you compare equivalent incomes, the Clinton incomes paid a higher % in taxes. Tax brackets are always designed around income levels, not percentile levels.
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If you want to argue that the reason the % levels were higher under Bush was because of greater economic growth, then discuss what caused that growth, that is another issue. But there is nothing in these data that show that lowering tax rates will result in someone paying a larger proportion of taxes on a particular level of income. That really would be voodoo economics.
Okay, I see it. But there's still more to the story...
There are four ways to file taxes, married filing jointly, married filing separately, single and head of household. For the sake of this discussion I'll just talk about married filing jointly (but the effect applies to all categories)
1993 Top Marginal Rate = 39.6% Threshold for Top Rate = $250,000
1994 Top Marginal Rate = 39.6% Threshold for Top Rate = $250,000
1995 TMR = 39.6% Threshold = $256,500
1996 TMR = 39.6% Threshold = $263,750
1997 TMR = 39.6% Threshold = $271,050
1998 TMR = 39.6% Threshold = $278,450
1999 TMR = 39.6% Threshold = $283,150
2000 TMR = 39.6% Threshold = $288,350
2001 TMR = 39.1% Threshold = $297,350
2002 TMR = 38.6% Threshold = $307,050
2003 TMR = 35.0% Threshold = $311,950
2004 TMR = 35.0% Threshold = $319,100
2005 TMR = 35.0% Threshold = $326,450
2006 TMR = 35.0% Threshold = $336,550
2007 TMR = 35.0% Threshold = $349,700
2008 TMR = 35.0% Threshold = $357,700
Now, according to what I could find, During the Clinton years the Top 1% averaged income growth of 10.3% annually whereas the thresholds only went up around 3% per year or so.
During the Bush years the average annual income gain for the Top 1% was 10.1% only calculated until the "great recession", where over the 2 year period of 2007/2008 the Top 1% annual income growth annualized was -19.7%. This is important because if you annualize 10.1% income growth starting at, say $350,000 (I have no idea of what the average income for the top 1% was), beginning in 2001 thru 2006 the income will be about $640,000. But in 2007, the income would be (on average) about $514,000 and for 2008 about $413,000.
http://elsa.berkeley.edu/~saez/saez-UStopincomes-2008.pdf
So your point is true (higher percentage of total income being taxed at the top rate) it looks like my point is also true.
Anyhow, I now have a headache.