Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Monday, August 8, 2011

Transparency and Product Differentiation with Competing Vertical Hierarchies

Posted by D. Daniel Sokol

Matteo Bassi (Università di Salerno and CSEF) Marco Pagnozzi (University of Napoli "Federico II" and CSEF) and Salvatore Piccolo (University of Naples "Federico II" and CSEF) explain Transparency and Product Differentiation with Competing Vertical Hierarchies.

ABSTRACT: We revisit the choice of product differentiation by competing firms in the Hotelling model, under the assumption that firms are vertically separated, and that retailers choose products’ characteristics. We show that retailers with private information about their marginal costs choose to produce less differentiated products than retailers with no private information, in order to increase their information rents. Hence, information asymmetry increases social welfare because it induces firms to sell products that appeal to a larger number of consumers. The socially optimal level of transparency between manufacturers and retailers depends on the weight assigned to consumers’ surplus and trades of two effects: higher transparency reduces price distortion but induces retailers to produce excessively similar products.

http://lawprofessors.typepad.com/antitrustprof_blog/2011/08/transparency-and-product-differentiation-with-competing-vertical-hierarchies-.html

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