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arXiv 2103.03238cs.GTcs.CC
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一价拍卖中均衡计算的复杂性

On the Complexity of Equilibrium Computation in First-Price Auctions

Aris Filos-Ratsikas, Yiannis Giannakopoulos, Alexandros Hollender, Philip Lazos, Diogo Poças

摘要:

本文研究了在连续价值分布和离散报价空间下,一价拍卖的(纯)贝叶斯-纳什均衡的计算问题。我们证明,当投标人有独立的主观先验信念的价值分布的其他投标人,计算$\varepsilon$ -均衡的拍卖是PPAD-完全的,计算精确的均衡是FIXP-完全的。我们还提供了一个有效的算法来解决一个特殊的情况下的问题,一个固定数量的投标人和可用的投标。

英文摘要:

We consider the problem of computing a (pure) Bayes-Nash equilibrium in the first-price auction with continuous value distributions and discrete bidding space. We prove that when bidders have independent subjective prior beliefs about the value distributions of the other bidders, computing an $\varepsilon$-equilibrium of the auction is PPAD-complete, and computing an exact equilibrium is FIXP-complete. We also provide an efficient algorithm for solving a special case of the problem, for a fixed number of bidders and available bids.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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