Laffer curve and many others advocate a zero capital gains rate. The increased aggregate supply would result in increased aggregate demand, hence the term "supply-side economics". Laffer assumes that the government's revenue is a continuous function of the tax rate. However, in some theoretical models, the Laffer curve can be discontinuous, leading to an inability to devise a revenue-maximizing tax rate solution. Additionally, the Laffer curve depends on the assumption that tax revenue is used to provide a public good that is separable in utility and separate from labor supply, which may not be true in practice. The Laffer curve as presented
From each according to his ability, to each according to his needs From each according to his ability, to each according to his needs "From each according to his ability, to each according to his needs" is a slogan popularised by Karl Marx in his 1875 "Critique of the Gotha Program". The principle refers to free access and distribution of goods, capital and services. In the Marxist view, such an arrangement will be made possible by the abundance of goods and services that a developed communist system will produce; the idea is that, with the full development of socialism and unfettered productive forces, there will be enough to satisfy everyone's needs. The