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News/Bilateral Trade Under Heavy-Tailed Valuations: Minimax Regret without a Variance Bound
arxiv
PublishedSeptember 11, 2026 at 4:00 AM

Bilateral Trade Under Heavy-Tailed Valuations: Minimax Regret without a Variance Bound

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arXiv:2603.06851v4 Announce Type: replace-cross Abstract: In contextual bilateral trade under full feedback, the posted price does not affect which valuations are observed. We show that in this model such action-independent feedback removes the polynomial adaptation penalty familiar from heavy-taile

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