From Monetary to Nonmonetary Mechanism Design via Artificial Currencies
研究在重复分配和决策场景中,如何用人工货币将一次性货币机制转换为动态非货币机制,保证随时间推移不诚实报告收益趋零且性能损失趋零,对机制设计者和平台运营者有用。
Nonmonetary mechanisms for repeated allocation and decision making are gaining widespread use in many real-world settings. Our aim in this work is to study the performance and incentive properties of simple mechanisms based on artificial currencies in such settings. To this end, we make the following contributions: For a general allocation setting, we provide two black-box approaches to convert any one-shot monetary mechanism to a dynamic nonmonetary mechanism using an artificial currency that simultaneously guarantees vanishing gains from nontruthful reporting over time and vanishing losses in performance. The two mechanisms trade off between their applicability and their computational and informational requirements. Furthermore, for settings with two agents, we show that a particular artificial currency mechanism also results in a vanishing price of anarchy.