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The demand for a healthy diet: estimating the almost ideal demand system with infrequency of purchase

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Tiffin, R. and Arnoult, M. (2010) The demand for a healthy diet: estimating the almost ideal demand system with infrequency of purchase. European Review of Agricultural Economics, 37 (4). pp. 501-521. ISSN 0165-1587

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To link to this article DOI: 10.1093/erae/jbq038

Abstract/Summary

A Bayesian method of estimating multivariate sample selection models is introduced and applied to the estimation of a demand system for food in the UK to account for censoring arising from infrequency of purchase. We show how it is possible to impose identifying restrictions on the sample selection equations and that, unlike a maximum likelihood framework, the imposition of adding up at both latent and observed levels is straightforward. Our results emphasise the role played by low incomes and socio-economic circumstances in leading to poor diets and also indicate that the presence of children in a household has a negative impact on dietary quality.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development > Economic and Social Sciences Division > Food Economics and Marketing (FEM)
Interdisciplinary centres and themes > Centre for Food Security
ID Code:16773
Uncontrolled Keywords:almost ideal demand system; censoring; Bayesian estimation; diet and health
Publisher:Oxford University Press

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