Selling Strategic Information in Digital Competitive Markets

48 Pages Posted: 21 Jul 2018

See all articles by David Bounie

David Bounie

Telecom ParisTech

Antoine Dubus

Telecom ParisTech

Patrick Waelbroeck

Telecom ParisTech

Multiple version iconThere are 2 versions of this paper

Date Written: June 06, 2018

Abstract

This paper investigates the strategies of a data broker in selling information to one or to two competing firms that can price-discriminate consumers. The data broker can strategically choose any segment of the consumer demand (information structure) to sell to firms that implement third-degree price-discrimination. We show that the equilibrium profits of the data broker are maximized when (1) information identifies the consumers with the highest willingness to pay; (2) consumers with a low willingness to pay remain unidentified; (3) the data broker sells two symmetrical information structures. The data broker therefore strategically sells partial information on consumers in order to soften competition between firms. Extending the baseline model, we prove that these results hold under first-degree price-discrimination.

Keywords: data broker, information structure, price-discrimination

JEL Classification: D400, D800, L500, D430

Suggested Citation

Bounie, David and Dubus, Antoine and Waelbroeck, Patrick, Selling Strategic Information in Digital Competitive Markets (June 06, 2018). CESifo Working Paper Series No. 7078. Available at SSRN: https://ssrn.com/abstract=3212574

David Bounie

Telecom ParisTech ( email )

46 rue Barrault
F-75634 Paris, Cedex 13
France

Antoine Dubus

Telecom ParisTech ( email )

46 rue Barrault
F-75634 Paris, Cedex 13
France

Patrick Waelbroeck (Contact Author)

Telecom ParisTech ( email )

46 rue Barrault
F-75634 Paris, Cedex 13
France

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