Calibrated Click-Through Auctions

Calibrated Click-Through Auctions
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校准点击式拍卖

DOI:
10.1145/3485447.3512050
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发表时间:
2022
期刊:
ACM Web Conference
影响因子:
--
通讯作者:
Zuo, Song
Zuo, Song
中科院分区:
--
文献类型:
--
作者:
Bergemann, Dirk;Dütting, Paul;Paes Leme, Renato;Zuo, Song

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我们通过随机点击率和已知的每次点击估值来分析点击拍卖中的最佳信息设计。拍卖师将点击式拍卖的拍卖规则视为给定,即广义二价拍卖。然而,拍卖师可以设计有关投标人之间点击率的信息流。我们要求信息结构在学习意义上进行校准。有了这个限制,拍卖需要根据价值和点击率的校准预测的乘积对广告进行排名。因此,设计最优信息结构的任务被简化为设计最优校准预测的任务。我们表明,在点击率不确定的对称环境中,最优信息结构同时实现了社会效率和剩余提取。最佳信息结构需要向投标人提供私人(而不是公开)信号。它还需要相关(而不是独立)信号,即使点击率的潜在不确定性是独立的。除了对称设置之外,我们表明最佳信息结构需要部分信息披露,并且仅实现部分剩余提取。
We analyze the optimal information design in a click-through auction with stochastic click-through rates and known valuations per click. The auctioneer takes as given the auction rule of the click-through auction, namely the generalized second-price auction. Yet, the auctioneer can design the information flow regarding the click-through rates among the bidders. We require that the information structure to be calibrated in the learning sense. With this constraint, the auction needs to rank the ads by a product of the value and a calibrated prediction of the click-through rates. The task of designing an optimal information structure is thus reduced to the task of designing an optimal calibrated prediction.We show that in a symmetric setting with uncertainty about the click-through rates, the optimal information structure attains both social efficiency and surplus extraction. The optimal information structure requires private (rather than public) signals to the bidders. It also requires correlated (rather than independent) signals, even when the underlying uncertainty regarding the click-through rates is independent. Beyond symmetric settings, we show that the optimal information structure requires partial information disclosure, and achieves only partial surplus extraction.
DOI: 10.2139/ssrn.3145000
发表时间: 2017-02
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影响因子: --
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拍卖中的最佳信息披露
DOI: --
发表时间: 2018
期刊:
影响因子: --
作者:
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