Work

Internet Advertising and the Generalized Second-Price Auction: Selling Billions of Dollars Worth of Keywords

Year: 2007
Type: article
Abstract: We investigate the “generalized second-price” (GSP) auction, a new mechanism used by search engines to sell online advertising. Although GSP looks similar to the Vickrey-Clarke-Groves (VCG) mechanism, its properties are very different. Unlike the VCG mechanism, GSP generally does not have an equilibrium in dominant strategies, and truth-telling is not an equilibrium of GSP. To analyze the properties of GSP, we describe the generalized English auction that corresponds to GSP and show that it has a unique equilibrium. This is an ex post equilibrium, with the same payoffs to all players as the dominant strategy equilibrium of VCG. (JEL D44, L81, M37)
Language: English
Open Access status: green
OpenAlex ID: W3122305203
FWCI: 149.1
Cites: 48
Cited by: 1,778
Related to: 10