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
To each according to his contribution products for an equal amount of labor". Joseph Stalin and Leon Trotsky both mentioned the term in their works. To each according to his contribution "To each according to his contribution" is a principle of distribution considered to be one of the defining features of socialism. It refers to an arrangement whereby individual compensation is reflective of one's contribution to the social product (total output of the economy) in terms of effort, labor and productivity. This is held in contrast to the method of distribution and compensation in capitalism, where those who own private property receive unearned income in the