Arthur Laffer he learned it from Ibn Khaldun and John Maynard Keynes. A simplified view of the theory is that tax revenues would be zero if tax rates were either 0% or 100%, and somewhere in between 0% and 100% is a tax rate which maximizes total revenue. Laffer's postulate was that the tax rate that maximizes revenue was at a much lower level than previously believed: so low that current tax rates were above the level where revenue is maximized. Numerous leading economists have rejected the view that a tax rate cut of current federal US income taxes can lead to
To each according to his contribution that the citizens of a workers' society should be rewarded according to individual contributions, Marx claims that giving them the "full product" of their labor is impossible as some of the proceeds will be needed to maintain infrastructure and so forth. He then explains the nature of a communist society in its lower phase ("socialist society"), which does not emerge from its own foundations "but, on the contrary, just as it emerges from capitalist society; which is thus in every respect, economically, morally, and intellectually, still stamped with the birthmarks of the old society from whose womb it emerges". And