Online Advertising and Privacy
Alexandre De Corniere
University of Oxford
Romain De Nijs
Paris School of Economics (PSE)
May 23, 2014
An online platform auctions an advertising slot. Several advertisers compete in the auction, and consumers differ in their preferences. Prior to the auction, the platform decides whether to allow advertisers to access information about consumers (disclosure) or not (privacy). Disclosure improves the match between advertisers and consumers but increases product prices, even without price-discrimination. We provide conditions under which disclosure or privacy is privately and/or socially optimal. When advertisers compete on the downstream market, disclosure can lead to an increase or a decrease in product prices depending on the nature of the information.
Number of Pages in PDF File: 32
Keywords: online advertising, privacy, information disclosure, auctions
JEL Classification: D4
Date posted: December 19, 2012 ; Last revised: May 23, 2014
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