Political debates about the United States federal budget concentration of income at the top of the income distribution." In theory, the government collects no revenue at either zero or 100% tax rates. So there is some intermediate point at which government revenue is maximized. Lowering tax rates from 100% to this hypothetical rate that maximizes revenue would theoretically raise revenue, while continuing to lower tax rates below this rate would lower revenues. This concept underlies the Laffer Curve, an element of supply-side economics. Since the 1970s, some "supply side" economists have contended that lowering marginal tax rates could stimulate economic growth to such a degree that tax revenues
Ibn Khaldun scholars is increasingly common. Influential British historian and international affairs specialist Arnold J. Toynbee has called Ibn Khaldun's Muqaddimah "the greatest work of its kind." Ernest Gellner, once a professor of philosophy and logic at the London School of Economics, considered Khaldun's definition of government the best in the history of political theory. More moderate views on the scope of Ibn Khaldun's contributions have emerged. Arthur Laffer, for whom the Laffer curve is named, acknowledged that Ibn Khaldun's ideas, as well as others, precede his own work on that curve. A focus on understanding the nuances of Ibn Khaldun's contributions