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cs.GT2025
Optimal Type-Dependent Liquid Welfare Guarantees for Autobidding Agents with Budgets
Riccardo Colini-Baldeschi, Sophie Klumper, Twan Kroll +3
Online advertising systems have recently transitioned to autobidding, allowing advertisers to delegate bidding decisions to automated agents. Each advertiser directs their agent to…
cs.GT2025
The Effectiveness of Golden Tickets and Wooden Spoons for Budget-Feasible Mechanisms
Bart de Keijzer, Guido Schäfer, Artem Tsikiridis +1
One of the main challenges in mechanism design is to carefully engineer incentives ensuring truthfulness while maintaining strong social welfare approximation guarantees. But these…