Publication Type

Working Paper

Version

publishedVersion

Publication Date

1-2012

Abstract

I provide a simple example of a single peaked utility function that generates a Giffen demand. The utility function is smooth, non piecewise defined, strictly concave but not globally increasing. A full characterization of the parameter conditions under which the Giffen demand arises is provided. In addition the properties of the demand function are studied: I find that the inferior commodity with a Giffen demand must be cheaper relatively to a substitute and that Giffen demand arises at relatively low levels of income. However it is not required that the share of income spent on that commodity be large.

Keywords

Giffen behavior, Utility function, Single peakedness, Expenditure share

Discipline

Economic Theory

Research Areas

Economic Theory

First Page

1

Last Page

34

Publisher

SMU Economics and Statistics Working Paper Series, No. 02-2012

City or Country

Singapore

Copyright Owner and License

Authors

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