Deaton, AngusS.,andJohnMuellbauer. 1980."An Almost Ideal Demand System."
AmericanEconomicReview,70(3): 312-26.
A vastindustry inappliedeconometrics analyzesthedemandforspecificproducts,andtheimpactonconsumers ofpublicandprivatepoliciesthataltermarket
equilibrium. Thispaper,buildingon thetraditions ofCobb-Douglas,Stone,and
Gorman, introduces a practical systemofdemandequationsthatareconsistent with
preference maximization andhavesufficient flexibility tosupport fullwelfareanalysisofpoliciesthathaveanimpactonconsumers. TheDeaton-Muellbauer systemis
nowthestandardforempirical analysisofconsumerdemand.