Prior-Free Clock Auctions for Bidders with Interdependent Values
Prior-Free Clock Auctions for Bidders with Interdependent Values
复制标题
为具有相互依赖价值的投标人提供无优先权的时钟拍卖
DOI:
10.1007/978-3-030-85947-3_5
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Schoepflin, Daniel
中科院分区:
文献类型:
--
作者:
Gkatzelis, Vasilis;Patel, Rishi;Pountourakis, Emmanouil;Schoepflin, Daniel
We study the problem of selling a good to a group of bidders with interdependent values in a prior-free setting. Each bidder has a signal that can take one ofkdifferent values, and her value for the good is a weakly increasing function of all the bidders’ signals. The bidders are partitioned intoexpertise-groups, based on how their signal can impact the values for the good, and we prove upper and lower bounds regarding the approximability of social welfare and revenue for a variety of settings, parameterized bykand. Our lower bounds apply to all ex-post incentive compatible mechanisms and our upper bounds are all within a small constant of the lower bounds. Our main results take the appealing form of ascending clock auctions and provide strong incentives by admitting the desired outcomes asobvious ex-post equilibria.
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