{"type":"ScholarlyArticle","title":"Information and Contract Design for Repeated Interactions Between Agents with Misaligned Incentives","authors":[{"name":"Nanda Kishore Sreenivas","slug":"nanda-kishore-sreenivas","given":"Nanda Kishore","family":"Sreenivas","affiliation":""},{"name":"Kate Larson","slug":"kate-larson","given":"Kate","family":"Larson","affiliation":""}],"abstract":"We study the consequences of information asymmetries and misaligned incentives in settings with multiple independent agents. We model an interaction between a Sender, who holds vital private information but cannot act, and a Receiver, who must make decisions but is dependent on the Sender's information. We find that the Sender learns an optimal communication strategy that the Receiver reliably acts on. Importantly, this strategy is highly sensitive to the degree of conflict in the agents' rewards and the amount of environmental information the Receiver can already observe. We introduce a mechanism allowing the agents to form linear contracts, where a price is established for the information. We demonstrate that the Sender learns to use these payment structures to improve its rewards, though this comes at a cost of “fairness” between agents as the Sender is able to extract much of the Receiver’s surplus. This raises questions about fairness, contract design, and learning in the context of multi-agent systems.","doi":"10.24963/ijcai.2026/41","url":"https://ijcai.org/proceedings/2026/41","pdf":"https://ijcai.org/proceedings/2026/0041.pdf","markdown":"https://ijcai.org/proceedings/2026/41.md","bibtex":"https://ijcai.org/proceedings/2026/bibtex/41","volume":{"slug":"2026","title":"Proceedings of the Thirty-Fifth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2026","url":"https://ijcai.org/proceedings/2026/","year":2026,"location":"Bremen, Germany","dates":"15-21 August 2026","editors":"Diego Calvanese","isbn":"978-1-956792-09-6","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2026"},"section":"Agent-based and Multi-agent Systems","track":"Main Track","number":41,"pages":{"first":357,"last":364},"keywords":["Agent-based and Multi-agent Systems: Multi-agent learning","Agent-based and Multi-agent Systems: Coordination and cooperation","Agent-based and Multi-agent Systems: Agreement technologies: Negotiation and contract-based systems"],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}