Here is a quiz for you...
According to the Laffer curve, the optimum revenue maximizing marginal income tax rate is:
1) 35%
2) 70%
Anyone who preaches the Laffer curve hypothesis is truly calling for further increases in the top income tax rate—wittingly or unwittingly.
First Arthur Laffer never claimed to invent the Laffer curve. He attributed it to Ibn Khaldun and John Maynard Keynes. So I guess that makes believers in the Laffer curve Keynesians.
I have personally heard him speak more than once that he offered the idea to Rumsfeld in a coffee shop drawing on the back of a napkin in 1974. It was Rumsfeld and Dick Cheney who promoted it. Laffer often referred to it as his "conjecture". The story can be found at
The Laffer Curve Past Present and Future. It's Laffer's story published by the Heritage Foundation and he's sticking to it. The article includes a quote by Keynes to whom he attributes the most cogent explanation of the idea.
In 2008 Don Fullerton noted the
The New Palgrave Dictionary of Economics (2nd ed.). p. 839 surveyed the literature and found widely varying values for
an "optimal" rate of taxation with a midpoint of about 70%. In fairness, Laffer's article claims great success for the idea connected with lowering the capital gains rates from 28% to 20%, but he offers no analysis of any of the examples he provides other than some superficial anecdotal remarks.
If anyone prefers actual facts to name-calling; I recommend Prof Laffer's article.