诱惑智能体：AI智能体市场中无持久身份的声誉经济学
Tempting the Agent: The Economics of Reputation without Persistent Identity in AI Agent Markets
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- Scuola Normale Superiore（高等师范学校）
- Università di Bologna（博洛尼亚大学）
机构由 AI 辅助整理，请以论文原文为准。
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中文总结 AI 辅助
本文构建动态经济框架，结合身份重置成本等因素，研究AI智能体市场中无持久身份时声誉对自主智能体的约束作用，适用于区块链智能体等场景。
中文摘要 AI 辅助
声誉是市场在无法事前完美评估服务质量时维持信任的基础机制，构成一种通过吸引未来需求形成的跨期经济资本。其作为惩戒机制的有效性不仅取决于过往互动，还与声誉所依附身份的持久性相关。当身份可被廉价放弃和重建时，声誉资本本身可能成为机会主义剥削的对象。本文构建动态经济框架，研究声誉何时足以约束自主智能体，将声誉建模为吸引未来经济活动的资本。每个时刻，智能体选择诚实运营、投入质量以保留未来收益，或进行一次性偏离行为以榨取声誉价值并从受惩罚的身份重启。我们的分析将机会主义行为的诱惑与身份重置成本、声誉持久性、需求敏感性及执行设计关联，推导最优质量供给的比较静态。在区块链上运行的自主AI智能体是相关应用场景：ERC-8004、ERC-8183和x402等基础设施在无许可市场中结合了声誉、身份与支付。不过，本框架适用于任何声誉可产生未来业务且身份可替换的环境。
英文摘要
Reputation is a fundamental mechanism through which markets sustain trust when service quality cannot be perfectly assessed ex ante, constituting a form of intertemporal economic capital by attracting future demand. Its effectiveness as a disciplinary mechanism depends not only on past interactions but also on the persistence of the identity to which reputation is attached. When identities can be abandoned and recreated cheaply, reputational capital may itself become an object of opportunistic exploitation. This paper develops a dynamic economic framework to study when reputation is sufficient to discipline autonomous agents. We model reputation as capital attracting future economic activity. At each point, an agent chooses between operating honestly, investing in quality to preserve future gains, or executing a one-shot deviation to extract its reputation's value and restart from a penalized identity. Our analysis relates the temptation to opportunistic behavior to identity-reset costs, reputation persistence, demand sensitivity, and enforcement design, deriving comparative statics on optimal quality provision. Autonomous AI-agent operating on the blockchain are a relevant application: infrastructures such as ERC-8004, ERC-8183, and x402 combine reputation, identity, and payments in permissionless markets. Nonetheless, our framework applies to any environment where reputation generates future business and identities are replaceable.
