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
Notional Park in Arcadia, California by four lengths under jockey Corey Nakatani. Sent to the Fair Grounds Race Course in New Orleans, Louisiana in February, Notional scored a 2 length win in the Risen Star Stakes under jockey Robby Albarado in a race where favorite Circular Quay was seriously impeded as a result of a race accident. Notional came in a close second to Scat Daddy in the Florida Derby in his last prep before the Kentucky Derby. While he was set to run the Triple Crown races, Notional suffered a fracture of his front cannon bone during a workout at