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Is one demand function enough?
[Une seule fonction de demande ?]

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  • Julien Boelaert

    (CERAPS - Centre d'Etudes et de Recherches Administratives, Politiques et Sociales - UMR 8026 - Université de Lille - CNRS - Centre National de la Recherche Scientifique)

Abstract

We introduce a new test of preference stability across consumers, based on a discrete mixture model of feedforward neural networks, designed to detect clusters of consumers following distinct consumption functions. The procedure is tested on simulated data and applied to two sets of Canadian household consumption microdata (1969-1986 and 2004-2008). On both these datasets we find that two clusters best explain the data, thus rejecting preference stability. Finally we address elasticity estimation, and find on simulated data that for most practical uses simple demand systems suffice.

Suggested Citation

  • Julien Boelaert, 2014. "Is one demand function enough? [Une seule fonction de demande ?]," Post-Print hal-03921556, HAL.
    • Handle: RePEc:hal:journl:hal-03921556
    DOI: 10.3917/reco.654.0515
    Note: View the original document on HAL open archive server: https://cnrs.hal.science/hal-03921556
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