Necessity good: Difference between revisions
Content deleted Content added
No edit summary |
Investopedia got one class of examples completely wrong and is not an RS, so removing it from everything except basic definitions |
||
| Line 1: | Line 1: | ||
{{Short description|Products bought regardless of income}} |
{{Short description|Products bought regardless of income}} |
||
In [[economics]], a '''necessity good''' or a '''necessary good''' is a type of [[normal good]]. |
In [[economics]], a '''necessity good''' or a '''necessary good''' is a type of [[normal good]]. |
||
Necessity goods are product(s) and services that consumers will buy regardless of the changes in their income levels, therefore making these products less sensitive to income change |
Necessity goods are product(s) and services that consumers will buy regardless of the changes in their income levels, therefore making these products less sensitive to income change.<ref>{{Cite news|url=https://www.investopedia.com/terms/i/incomeelasticityofdemand.asp|title=Income Elasticity of Demand|last=Staff|first=Investopedia|date=2004-01-11|work=Investopedia|access-date=2018-06-01|language=en-US}}</ref> As for any other normal good, an income rise will lead to a rise in demand, but the increase for a necessity good is less than proportional to the rise in income, so the proportion of expenditure on these goods falls as income rises.<ref>{{cite book |first=Hal |last=Varian |author-link=Hal Varian |title=Microeconomic Analysis |location=New York |publisher=W.W. Norton |edition=Third |year=1992 |isbn=0-393-95735-7 |chapter=Choice |pages=[https://archive.org/details/microeconomicana00vari_0/page/117 117] |quote=[...] as the consumer gets more income, he consumes more of both goods but proportionally more of one good (the ''luxury good'') than of the other (the ''necessary good''). |chapter-url=https://books.google.com/books?id=m20iQAAACAAJ&pg=PA117 |url=https://archive.org/details/microeconomicana00vari_0/page/117 }}</ref> If income elasticity of demand is lower than unity, it is a necessity good.<ref name=":0">{{Cite book|title=Managerial Economics|last=Debabrata|first=Datta|date=2017|publisher=Prentice-Hall |location=India|isbn=978-8120352414|oclc=990641889}}</ref> This observation for food, known as [[Engel's law]], states that as income rises, the proportion of income spent on food falls, even if absolute expenditure on food rises. This makes the [[Income elasticity of demand|income elasticity]] of demand for food between zero and one. |
||
Some necessity goods are produced by a [[public utility]]. According to Investopedia, stocks of private companies producing necessity goods are known as [[defensive stock]]s. Defensive stocks are stocks that provide a constant [[dividend]] and stable [[Profit (economics)|earnings]] regardless of the state of the overall stock market.<ref name="inv1">{{cite web |url=http://www.investopedia.com/articles/00/082800.asp |title=Cyclical Versus Non-Cyclical Stocks |access-date=2009-03-18 |publisher=Investopedia}}</ref><ref name="inv2">{{cite web |url=http://www.investopedia.com/terms/d/defensivestock.asp |title=Defensive Stock|access-date=2009-03-18 |publisher=Investopedia}}</ref> |
Some necessity goods are produced by a [[public utility]]. According to Investopedia, stocks of private companies producing necessity goods are known as [[defensive stock]]s. Defensive stocks are stocks that provide a constant [[dividend]] and stable [[Profit (economics)|earnings]] regardless of the state of the overall stock market.<ref name="inv1">{{cite web |url=http://www.investopedia.com/articles/00/082800.asp |title=Cyclical Versus Non-Cyclical Stocks |access-date=2009-03-18 |publisher=Investopedia}}</ref><ref name="inv2">{{cite web |url=http://www.investopedia.com/terms/d/defensivestock.asp |title=Defensive Stock|access-date=2009-03-18 |publisher=Investopedia}}</ref> |
||
Revision as of 18:42, 4 April 2024
In economics, a necessity good or a necessary good is a type of normal good. Necessity goods are product(s) and services that consumers will buy regardless of the changes in their income levels, therefore making these products less sensitive to income change.[1] As for any other normal good, an income rise will lead to a rise in demand, but the increase for a necessity good is less than proportional to the rise in income, so the proportion of expenditure on these goods falls as income rises.[2] If income elasticity of demand is lower than unity, it is a necessity good.[3] This observation for food, known as Engel's law, states that as income rises, the proportion of income spent on food falls, even if absolute expenditure on food rises. This makes the income elasticity of demand for food between zero and one.
Some necessity goods are produced by a public utility. According to Investopedia, stocks of private companies producing necessity goods are known as defensive stocks. Defensive stocks are stocks that provide a constant dividend and stable earnings regardless of the state of the overall stock market.[4][5]
See also
References
- ^ Staff, Investopedia (2004-01-11). "Income Elasticity of Demand". Investopedia. Retrieved 2018-06-01.
- ^ Varian, Hal (1992). "Choice". Microeconomic Analysis (Third ed.). New York: W.W. Norton. pp. 117. ISBN 0-393-95735-7.
[...] as the consumer gets more income, he consumes more of both goods but proportionally more of one good (the luxury good) than of the other (the necessary good).
- ^ Debabrata, Datta (2017). Managerial Economics. India: Prentice-Hall. ISBN 978-8120352414. OCLC 990641889.
- ^ "Cyclical Versus Non-Cyclical Stocks". Investopedia. Retrieved 2009-03-18.
- ^ "Defensive Stock". Investopedia. Retrieved 2009-03-18.
 | This article related to microeconomics is a stub. You can help Wikipedia by expanding it. |