Article dans une série de papiers de travail :

Patrick Rey et Zhijun Chen, « Loss Leading as an Exploitative Practice », TSE Working Paper, n°10-218, 23 novembre 2010, révision décembre 2011.
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Résumé

Large retailers, enjoying substantial market power in some local markets, often compete with smaller retailers who carry a narrower range of products in a more efficient way. We find that these large retailers can exercise their market power by adopting a loss-leading pricing strategy, which consists of pricing below cost some of the products also offered by smaller rivals, and raising the prices on the other products. In this way, the large retailers can better discriminate multi-stop shoppers from one-stop shoppers — and may even earn more profit than in the absence of the more efficient rivals. Loss leading thus appears as an exploitative device, designed to extract additional surplus from multi-stop shoppers, rather than as an exclusionary instrument to foreclose the market, although the small rivals are hurt as a by-product of exploitation. We show further that banning below-cost pricing increases consumer surplus, small rivals’ profits, and social welfare. Our insights apply generally to industries where a firm, enjoying substantial market power in one segment, competes with more efficient rivals in other segments, and procuring these products from the same supplier generates customer-specific benefits. They also apply to complementary products, such as platforms and applications. There as well, our analysis provides a rationale for below-cost pricing based on exploitation rather than exclusion.

Mots clefs

loss leading, exploitative practice, retail power

Codes JEL

L11 : Production, Pricing, and Market Structure; Size Distribution of Firms (Concentration, Product Differentiation, Entry and Exit)
L41 : Monopolization; Horizontal Anticompetitive Practices

Groupe thématique TSE

Economie industrielle

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