arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.14274cs.GT
收藏

具有预算约束的简单组合拍卖

Simple combinatorial auctions with budget constraints

Alexandros A. Voudouris

摘要:

我们研究了简单的组合拍卖的效率分配的一组项目的一组代理商,私人次可加性的估值函数和预算约束。我们考虑的类包括所有拍卖,这些拍卖将每个物品独立分配给为其提交最高出价的代理,并请求仅取决于所有代理对此物品的出价的付款。这类拍卖的两个著名例子是同时的第一和第二价格拍卖。我们专注于纯均衡的诱导战略游戏,并使用流动福利作为我们的效率基准,我们显示了一个上限为2的无政府代价价格的无政府拍卖在这个类中,以及一个严格的相应的价格稳定的下限为所有拍卖的支付规则是凸组合的出价。这意味着著名的同时第一和第二价格拍卖的稳定价格的紧界为2,这是该类的成员。此外,我们显示了整个类的下限,更复杂的拍卖(如VCG),并为设置的预算被假定为常识,而不是私人信息。

英文摘要:

We study the efficiency of simple combinatorial auctions for the allocation of a set of items to a set of agents, with private subadditive valuation functions and budget constraints. The class we consider includes all auctions that allocate each item independently to the agent that submits the highest bid for it, and requests a payment that depends on the bids of all agents only for this item. Two well-known examples of this class are the simultaneous first and second price auctions. We focus on the pure equilibria of the induced strategic games, and using the liquid welfare as our efficiency benchmark, we show an upper bound of 2 on the price of anarchy for any auction in this class, as well as a tight corresponding lower bound on the price of stability for all auctions whose payment rules are convex combinations of the bids. This implies a tight bound of 2 on the price of stability of the well-known simultaneous first and second price auctions, which are members of the class. Additionally, we show lower bounds for the whole class, for more complex auctions (like VCG), and for settings where the budgets are assumed to be common knowledge rather than private information.

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。

↑