Laffer curve as provided by supply-side economics. Although the simplified Laffer curve is usually illustrated as a straightforward symmetrical and continuous bell-shaped curve, when in reality the bell-shaped curve may be skewed or lop-sided to either side of the 'maximum' shown in the simplified version of the Laffer curve. Within the reality of complex and sudden changes to tax policy over time, the response of tax revenue to tax rates may vary dramatically and is not necessarily even continuous over time, when for example new legislation is enacted which abruptly changes tax revue expectations. Laffer explains the model in terms of two
From each according to his ability, to each according to his needs if any member of society has an unsatisfied need, each member has a duty to produce its object (if they can). But that is precisely what the principle ‘from each according to their abilities, to each according to their needs!’ dictates. In Marx’s vision, the basic principle of developed communism is a principle of solidarity in respect of need.' Marx delineated the specific conditions under which such a creed would be applicable—a society where technology and social organization had substantially eliminated the need for physical labor in the production of things, where "labor has become not only a means of