We study the bidding behavior of spiteful agents who, contrary to the common assumption of selfinterest, maximize a convex combination of their own proļ¬t and their competitorsā...
A context in sponsored search is additional information about a query, such as the userās age, gender or location, that can change an advertisementās relevance or an advertise...
In this paper, we examine the behavior of bidding agents that are in direct competition with the other participants in an auction setting. Thus the agents are not simply trying to...
We analyze the problem of designing a truthful pay-per-click auction where the click-through-rates (CTR) of the bidders are unknown to the auction. Such an auction faces the class...
We introduce a study of position auctions, with an explicit modeling of user navigation through ads. We refer to our model as the PPA model, since it is most applicable in the con...