A Class of Symmetric and Quadratic Utility Functions Generating Giffen Demand

I provide a simple example of a quadratic utility function that generates a Giffen demand. The utility function is symmetric, increasing and concave. Interestingly, the Giffen effect arises in the subspace where the utility function is strictly increasing and strictly concave. A full characterizatio...

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Bibliographic Details
Main Author: LANDI, Massimiliano
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2015
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Online Access:https://ink.library.smu.edu.sg/soe_research/1645
https://ink.library.smu.edu.sg/context/soe_research/article/2644/viewcontent/ClassSymmetricQuadraticGiffen_2015.pdf
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Institution: Singapore Management University
Language: English
Description
Summary:I provide a simple example of a quadratic utility function that generates a Giffen demand. The utility function is symmetric, increasing and concave. Interestingly, the Giffen effect arises in the subspace where the utility function is strictly increasing and strictly concave. A full characterization of the parameter conditions under which the Giffen demand arises is provided.