Econometrica

Journal Of The Econometric Society

An International Society for the Advancement of Economic
Theory in its Relation to Statistics and Mathematics

Edited by: Guido W. Imbens • Print ISSN: 0012-9682 • Online ISSN: 1468-0262

Econometrica: Sep, 1976, Volume 44, Issue 5

Community Preferences and the Representative Consumer

https://doi.org/0012-9682(197609)44:5<979:CPATRC>2.0.CO;2-K
p. 979-999

John Muellbauer

A representative consumer exists if market behavior corresponds to a representative income or utility level which is a function of the income distribution. Necessary and sufficient conditions are given on micro behavior and macro behavior (whether maximizing or not) for a representative consumer to exist. Nonlinear Engel curves and taste differences are permitted. If the representative income level is restricted to be mean income, we obtain the traditional linear Engel curves solution. A striking result on economy of information in the representation of a social welfare function is given.


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