marginal utility

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Noun1.marginal utility - (economics) the amount that utility increases with an increase of one unit of an economic good or servicemarginal utility - (economics) the amount that utility increases with an increase of one unit of an economic good or service
economic science, economics, political economy - the branch of social science that deals with the production and distribution and consumption of goods and services and their management
utility - (economics) a measure that is to be maximized in any situation involving choice
References in periodicals archive ?
Helfferich is of the opinion that there is an insurmountable obstacle in the way of applying the marginal utility theory to the problem of money; for while the marginal-utility theory attempts to base the exchange value of goods on the degree of their [usefulness] to the individual, the degree of [usefulness] of money to the individual quite obviously depends on its exchange-value, since money can have utility only if it has exchange-value, and the degree of [its usefulness] is determined by the level of the exchange-value.
Sacrifice theory is dependent upon the economic principle that holds there is a marginal-utility curve for money to the effect that the more money one earns, the less utility (or satisfaction) will be derived from the last dollar earned.
Second, the validity of the theory depends on more than just the existence of a downward sloping marginal-utility curve.