Timo Goetschl

en viso

Reprise de l'animation scientifique jeudi 17 septembre 2020 à 14 heures avec la présentation de Timo Goetschl, Chair of Environmental Economics, Université de Heidelberg :

Date Marks, Valuation, and Food Waste: An In-Store "Eggsperiment".
 

Abstract:
We provide causal evidence on how date labeling policies influence consumers' valuation of food products through three interlinked research steps.  The first is a preliminary survey. This permits identifying a perishable food item that can be experimentally manipulated and helps overcome core challenges for causal identification.  The second is a modified in-store multiple price list (MPL) experiment that helps overcome the challenge of free disposal censoring. The third building block is a follow-up experiment that tests the hypothesis that the treatment effects plausibly result from the nature of demand-side information. The core step, the modified in-store MPL experiment, tests the food valuation of 200 subjects in a two-by-two design manipulating date label type (use-by versus best-before) and information status.  We find that date mark types, as used at present, are not impactful for consumer behavior and that educating consumers about their meaning is conducive to the health and safety objectives implicit in date marking food, but not to its objective of preventing food waste.  Our follow-up experiment suggests that the explanation for this phenomenon lies in the existing asymmetry in consumers’ understanding of the two date marks currently in use.

En raison du contexte actuel, ce premier séminaire se tiendra en visio :

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