7 papers
Autobidding Equilibria in Sponsored Shopping
Paul Dütting, Yuhao Li, Renato Paes Leme +2
As commerce shifts to digital marketplaces, platforms increasingly monetize traffic through Sponsored Shopping auctions. Unlike classic ``Sponsored Search", where an advertiser typ…
Chaos in Autobidding Auctions
Ioannis Anagnostides, Ian Gemp, Georgios Piliouras +1
As autobidding systems increasingly dominate online advertising auctions, characterizing their long-term dynamical behavior is brought to the fore. In this paper, we examine the dy…
Tight Inapproximability for Welfare-Maximizing Autobidding Equilibria
Ioannis Anagnostides, Ian Gemp, Georgios Piliouras +1
We examine the complexity of computing welfare- and revenue-maximizing equilibria in autobidding second-price auctions subject to return-on-spend (RoS) constraints. We show that co…
The algebra of semi-flows: a tale of two topologies
Kelly Spendlove, Robert Vandervorst
To capture the global structure of a dynamical system we reformulate dynamics in terms of appropriately constructed topologies, which we call flow topologies; we call this process…
Auto-bidding and Auctions in Online Advertising: A Survey
Gagan Aggarwal, Ashwinkumar Badanidiyuru, Santiago R. Balseiro +23
In this survey, we summarize recent developments in research fueled by the growing adoption of automated bidding strategies in online advertising. We explore the challenges and opp…
Complex Dynamics in Autobidding Systems
Renato Paes Leme, Georgios Piliouras, Jon Schneider +2
It has become the default in markets such as ad auctions for participants to bid in an auction through automated bidding agents (autobidders) which adjust bids over time to satisfy…