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Vinzenz Thoma

6 accepted papers

2025

Computing Perfect Bayesian Equilibria in Sequential Auctions with Verification

AAAI 2025technical

We present an algorithm for computing pure-strategy epsilon-perfect Bayesian equilibria in sequential auctions with continuous action and value spaces. Importantly, our algorithm includes a verification phase that computes an upper bound on the utility loss of the found strategies. Prior work on equ…

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2025

Learning to Steer Markovian Agents under Model Uncertainty

ICLR 2025poster

Designing incentives for an adapting population is a ubiquitous problem in a wide array of economic applications and beyond. In this work, we study how to design additional rewards to steer multi-agent systems towards desired policies \emph{without} prior knowledge of the agents' underlying learning…

2025

Scalable Neural Incentive Design with Parameterized Mean-Field Approximation

NeurIPS 2025poster

Designing incentives for a multi-agent system to induce a desirable Nash equilibrium is both a crucial and challenging problem appearing in many decision-making domains, especially for a large number of agents $N$. Under the exchangeability assumption, we formalize this incentive design (ID) problem…

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2024

Automated Design of Affine Maximizer Mechanisms in Dynamic Settings

AAAI 2024technical

Dynamic mechanism design is a challenging extension to ordinary mechanism design in which the mechanism designer must make a sequence of decisions over time in the face of possibly untruthful reports of participating agents. Optimizing dynamic mechanisms for welfare is relatively well understood. Ho…

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2024

Contextual Bilevel Reinforcement Learning for Incentive Alignment

NeurIPS 2024poster

The optimal policy in various real-world strategic decision-making problems depends both on the environmental configuration and exogenous events. For these settings, we introduce Contextual Bilevel Reinforcement Learning (CB-RL), a stochastic bilevel decision-making model, where the lower level cons…