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arXiv 2011.03645cs.GTcs.MA
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来自预测市场的及时信息

Timely Information from Prediction Markets

Grant Schoenebeck, Chenkai Yu, Fang-Yi Yu

摘要:

预测市场是一种强有力的工具,可以从战略代理人那里引出和聚集信念。然而,在当前的预测市场中,代理商可能会通过竞争成为第一个更新市场的人来耗尽社会福利。我们开始研究如何快速的信息是由市场汇总,以及这些信息的成本之间的权衡。我们设计的市场能够及时收集来自战略代理人的信息,以最大化社会福利。为此,市场必须激励代理人投入适当的努力来获取信息:足够快,但不能比必要的更快(也更昂贵)。市场还必须确保代理商如实、及时地报告他们的信息。我们考虑两种设置:在第一种情况下,信息只有在截止日期之前才有价值;在第二种情况下,信息的价值随着时间的推移而减少。我们使用定理和模拟来证明的机制。

英文摘要:

Prediction markets are powerful tools to elicit and aggregate beliefs from strategic agents. However, in current prediction markets, agents may exhaust the social welfare by competing to be the first to update the market. We initiate the study of the trade-off between how quickly information is aggregated by the market, and how much this information costs. We design markets to aggregate timely information from strategic agents to maximize social welfare. To this end, the market must incentivize agents to invest the correct amount of effort to acquire information: quickly enough to be useful, but not faster (and more expensively) than necessary. The market also must ensure that agents report their information truthfully and on time. We consider two settings: in the first, information is only valuable before a deadline; in the second, the value of information decreases as time passes. We use both theorems and simulations to demonstrate the mechanisms.

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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