Inverse demand function: Difference between revisions

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In [[economics]], an '''inverse demand function''' is the the mathematical relationship that expresses price as a [[function (mathematics)|function]] of quantity demanded (is is therefore also known as a '''price function''').<ref>{{Cite book|title=Intermediate microeconomics : with calculus|last=R.|first=Varian, Hal|date = 7 April 2014|isbn=9780393123982|edition= First|___location=New York|pages=115|oclc=884922812}}</ref>

Historically, the economists first expressed the price of a good as a function of demand (holding the other economic variables, like income, constant), and plotted the price-demand relationship with demand on the x (horizontal) axis (the [[demand curve]]). Later the additional variables, like prices of other goods, came into analysis, and it became more convenient to express the demand as a [[multivariate function]] (the '''demand function'''):