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arXiv 1407.8161cs.GTcs.AI
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信息效用递减下的做市行为

Market Making with Decreasing Utility for Information

Microsoft Research(微软研究院)

Miroslav Dudík, Rafael Frongillo, Jennifer Wortman Vaughan

摘要:

我们研究了在基于成本函数的组合预测市场中,当做市商对信息的效用随时间而降低时的信息获取问题。在突然披露的情况下,已知某些信息将被披露给交易者,并且做市商希望阻止在确定的信息上进行交易的保证利润。在逐渐减少的情况下,做市商对(部分)信息的效用随着时间的推移不断减少。我们为这两种设置设计了自适应成本函数:(1)保留先前在市场上收集的信息;(2)消除(或减少)交易者公开披露信息的奖励;(3)保持奖励结构不受其他信息的影响;(4)保持做市商的最坏情况损失。我们的结构利用混合Bregman分歧,这符合我们的信息效用的概念。

英文摘要:

We study information elicitation in cost-function-based combinatorial prediction markets when the market maker's utility for information decreases over time. In the sudden revelation setting, it is known that some piece of information will be revealed to traders, and the market maker wishes to prevent guaranteed profits for trading on the sure information. In the gradual decrease setting, the market maker's utility for (partial) information decreases continuously over time. We design adaptive cost functions for both settings which: (1) preserve the information previously gathered in the market; (2) eliminate (or diminish) rewards to traders for the publicly revealed information; (3) leave the reward structure unaffected for other information; and (4) maintain the market maker's worst-case loss. Our constructions utilize mixed Bregman divergence, which matches our notion of utility for 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。

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