Are nutritional claims an adequate tool for public health? Evidence from food purchases in France
AbstractNutritional claims have become a major instrument for providing consumers with information at the point of purchase, enabling them to make nutritionally appropriate choices. This paper deals with two public policy issues linked to the implementation of nutritional claims, i.e. efficiency and equity, in terms of nutritional outcomes and in terms of population targeting. We consider the French breakfast foods market at the household level using 2004 TNS Worldpanel data. We estimate a demand system taking into account the selection issue. For this we use the Shonkwiler and Yen’s procedure which, unlike Heckman’s, allows participation on every market of products to be controlled for. We propose a modification of this approach to address the methodological issue of satisfying the additivity constraint. This procedure is estimated on a set of dairy and cereal-based products which have different health attributes. Our results show that products with health claims play the role they are expected for. The light variants of dairy foods considered here appear to target households with members at health risk, obese or overweight. But interactions between products suggest some limits to efficiency on nutritional grounds. A higher probability of purchasing light products and with higher quantities coincides with higher purchases of biscuits and dairy desserts. Moreover, since lower income discourage the use of products with health claims, equity is not obtained and this should be stressed for policy implications.
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Bibliographic InfoPaper provided by European Association of Agricultural Economists in its series 2008 International Congress, August 26-29, 2008, Ghent, Belgium with number 44007.
Date of creation: 2008
Date of revision:
Nutritional claims; Food policy; Healthy diet; Censored Demand system; Food Consumption/Nutrition/Food Safety;
This paper has been announced in the following NEP Reports:
- NEP-ALL-2008-11-25 (All new papers)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Diansheng Dong & Brian W. Gould & Harry M. Kaiser, 2004. "Food Demand in Mexico: An Application of the Amemiya-Tobin Approach to the Estimation of a Censored Food System," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 86(4), pages 1094-1107.
- J. Scott Shonkwiler & Steven T. Yen, 1999. "Two-Step Estimation of a Censored System of Equations," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 81(4), pages 972-982.
- Heien, Dale & Wessells, Cathy Roheim, 1990. "Demand Systems Estimation with Microdata: A Censored Regression Approach," Journal of Business & Economic Statistics, American Statistical Association, vol. 8(3), pages 365-71, July.
- Harald Tauchmann, 2005. "Efficiency of two-step estimators for censored systems of equations: Shonkwiler and Yen reconsidered," Applied Economics, Taylor and Francis Journals, vol. 37(4), pages 367-374.
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