Laffer curve at an intermediate rate of taxation, and then falls again to zero revenue at a 100% tax rate. However, the shape of the curve is uncertain and disputed among economists. Under some assumptions, such as revenue being a continuous function of the rate of taxation, the maximum illustrated by the Laffer curve is a result of Rolle's theorem, which is a standard result in calculus. One implication of the Laffer curve is that reducing or increasing tax rates beyond a certain point is counter-productive for raising further tax revenue. A hypothetical Laffer curve for any given economy can only be
Arthur Laffer He has stated publicly that he voted for President Bill Clinton in 1992 and 1996. Laffer references President Clinton's conservative fiscal and unregulated market policies as cornerstones of his support. Although he does not claim to have invented the Laffer curve concept (Laffer, 2004), it was popularized with policy-makers following an afternoon meeting with Nixon/Ford Administration officials Dick Cheney and Donald Rumsfeld in 1974 in which he reportedly sketched the curve on a napkin to illustrate his argument. The term "Laffer curve" was coined by Jude Wanniski, who was also present. The basic concept was not new; Laffer himself says