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Marchés avec coûts d'information sur la qualité des biens : une application aux produits écolabellisés

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  • Douadia Bougherara
  • Virginie Piguet

Abstract

Market-failure theory is often used to argue that eco-labeling is a way of increasing market efficiency. We show that, because of additional costs, this may not always be true. We identify three types of information costs regarding quality that may arisewith an eco-label. We then measure the market's ability to providehigh-quality goods and buyers'behavior toward information purchase in laboratory posted-offer markets with varying information costs. We find that markets with information costs are inefficient. For sellers, the probability of offering high-quality goods increases with expected profits but decreases with information costs. For buyers, even low information costs imply a significant surplus loss. We conclude that the function linking information purchase and product price is non-linear and depends on buyers'beliefs about the relationship between product prices and quality. The design of eco-labels thus plays a crucial role in their success.

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  • Douadia Bougherara & Virginie Piguet, 2008. "Marchés avec coûts d'information sur la qualité des biens : une application aux produits écolabellisés," Economie & Prévision, La Documentation Française, vol. 0(1), pages 77-96.
  • Handle: RePEc:cai:ecoldc:ecop_182_0077
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    1. Salladarré, Frédéric & Guillotreau, Patrice & Lesage, Claire-Marine & Ollivier, Pierrick, 2013. "Les préférences des consommateurs pour un écolabel. Le cas des produits de la mer en France," Revue d'Etudes en Agriculture et Environnement, Editions NecPlus, vol. 94(03), pages 339-363, September.
    2. Bougherara Douadia & Piguet Virginie, 2009. "Market Behavior with Environmental Quality Information Costs," Journal of Agricultural & Food Industrial Organization, De Gruyter, vol. 7(2), pages 1-28, December.
    3. Salladarré Frédéric & Guillotreau Patrice & Perraudeau Yves & Monfort Marie-Christine, 2010. "The Demand for Seafood Eco-Labels in France," Journal of Agricultural & Food Industrial Organization, De Gruyter, vol. 8(1), pages 1-26, December.
    4. Eline Jongmans & Alain Jolibert & Julie Irwin, 2014. "Toujours plus, toujours mieux ? Effet contre-intuitif de l'évaluation des attributs environnementaux du produit par le consommateur," Post-Print halshs-01185784, HAL.

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