Laffer curve rates (for example, in the United States by the Congressional Budget Office). While the interaction between tax rates and tax revenue is generally accepted, the precise nature of this interaction is debated. In practice, the shape of a hypothetical Laffer curve for a given economy can only be estimated. The relationship between tax rate and tax revenue is likely to vary from one economy to another and depends on the elasticity of supply for labor, as well as various other factors. Even in the same economy, the characteristics of the curve could vary over time. Complexities such as progressive taxes
To each according to his contribution so, "accordingly, the individual producer receives back from society — after the deductions have been made — exactly what he gives to it". He explains this as: In the paragraph immediately following Marx continues to explain how this system of exchange is related to the capitalist system of exchange: Marx says that this is rational and necessary, and that once society advances from the lower phase of communist society and work becomes life's prime want, distribution will occur along different lines. During the higher phase of communism, the standard shall be "from each according to his ability, to each according