Encyclopedia > Marginal utility

  Article Content

Marginal utility

In economics, marginal utility is the additional utility (satisfaction or benefit) that a consumer derives from an additional unit of a commodity or service. The concept grew out of attempts by 19th-century economists to explain the fundamental economic reality of price. It was a term coined by the Austrian economist Friedrich von Wieser.

Diminishing marginal utility implies that marginal utility from one additional unit is inversely related to the number of units already owned. For example, the marginal utility of one slice of bread offered to a family that has five slices will be great, since the family will be less hungry and the difference between five and six is proportionally significant. An extra slice offered to a family that has 30 slices will have less marginal utility, since the difference between 30 and 31 is proportionally smaller and the family's appetite may be satisfied by what it already has. As a result, rather than having a lot of one good or a lot of another one, one prefers having some of both. In the case of perfect substitutes this does not apply, in the case of perfect complements it applies most.

Diminishing marginal utility is a very common assumption in economics, but it is not universally assumed. It corresponds to convexity of the indifference curves.

See also



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Jordanes

... 6th century historian. He was an Ostrogoth and was a notary of Gothic kings in Italy. At the time of Justinian, he was a Christian and possibly bishop of Croton. In ...

 
 
 
This page was created in 149.9 ms