Muqaddimah empires to collapse, with the result that lower revenue was collected from high rates." He wrote: Ibn Khaldun introduced the concept now popularly known as the Laffer curve, that increases in tax rates initially increase tax revenues, but eventually the increases in tax rates cause a decrease in tax revenues. This occurs as too high a tax rate discourages producers in the economy. Ibn Khaldun used a dialectic approach to describe the sociological implications of tax choice (which now forms a part of economics theory): This analysis is very similar to the modern economic concept known as the Laffer curve.
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