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Review of Economic Studies Vol. 77 No. 4 2010

Habits Revealed

Ian Crawford

University of Oxford

Abstract

This paper sets out necessary and sufficient empirical conditions for rational intrinsic habits models in the revealed preference tradition of <cross-ref type="bib" refid="R41">Samuelson (1948)</cross-ref>, <cross-ref type="bib" refid="R29">Houthakker (1950)</cross-ref>, <cross-ref type="bib" refid="R3">Afriat (1967)</cross-ref>, and <cross-ref type="bib" refid="R11">Browning (1989)</cross-ref>. The conditions in the paper are shown to be computationally straightforward and to yield set identification for certain features of the model. The ideas outlined are applied to a microeconomic panel dataset. The addition of habit formation to the discounted utility model is shown to improve the rationalizability of the microdata considerably. Even if habit formation is rejected, it is shown that modest and plausible allowance for heterogeneity in prices and interest rates is sufficient to bring consumption behaviour into line with the theory.

DOI
10.1111/j.1467-937x.2010.00604.x
Volume
77
Issue
4
Pages
1382-1402
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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