That's not evidence of a causal link between rates and revenue. The first year the Clinton tax rates went into effect revenue was 17.5% - which is exactly what revenue was the previous year prior to the rate increase. That 17.5% is well below the 20.9% record. So once again you're cherry picking data by pointing to a fall in revenue AFTER the record breaking 20.9% while ignoring the fact that revenue started out much lower under the exact same tax rate.
If the tax rates under Clinton were the actual CAUSE of our record 20.9%, then we should have seen 20.9% every single year the rates were in effect, with no fluctuation whatsoever. That would be evidence of a causal link.
As the bubble rose, revenue as a % of GDP rose along with it. When the bubble burst, revenue as a % of GDP fell along with it. Before the bubble began, and after the higher tax rates went into effect, revenue remained at 17.5% of GDP, the exact same amount it had been the year before the tax rate increase. According to your trickle up theory of economics, revenue as a % of GDP should have gone up as the rates went up, but that's not what happened. Revenue as a % of GDP didn't actually begin to increase until a market bubble formed and revenue didn't begin to decline until after that market bubble had burst.
Correlation does not
imply causation (
cum hoc ergo propter hoc):
Imply: In logic, the technical use of the word "implies" means "to be a sufficient circumstance". This is the meaning intended by statisticians when they say causation is not certain.
Don't feel bad, it's a common mistake among people with no experience in logic.
The cum hoc ergo propter hoc logical fallacy can be expressed as follows:
A occurs in correlation with B.
Therefore, A causes B.
In this type of logical fallacy, one makes a premature conclusion about causality after observing only a correlation between two or more factors. Generally, if one factor (A) is observed to only be correlated with another factor (B), it is sometimes taken for granted that A is causing B even when no evidence supports it.
That is the fallacy upon which your entire argument is based.