Luxury goods

In economics, a luxury good (or upmarket good) is a good for which demand increases more than what is proportional as income rises, so that expenditures on the good become a more significant proportion of overall spending. Luxury goods are in contrast to necessity goods, where demand increases proportionally less than income.^[1] Luxury goods is often used synonymously with superior goods.

^ Varian, Hal (1992). "Choice". Microeconomic Analysis (Third ed.). New York: W.W. Norton. p. 117. ISBN 978-0-393-95735-8. Retrieved 4 October 2019. [...] 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).

[1] Varian, Hal (1992). "Choice". Microeconomic Analysis (Third ed.). New York: W.W. Norton. p. 117. ISBN 978-0-393-95735-8. Retrieved 4 October 2019. [...] 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).

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