Cooperation in partly observable networked markets

• 成果类型: Article
• 署名作者: Fainmesser, Itay P.; Goldberg, David A.
• 署名单位: Johns Hopkins University; Johns Hopkins University; Cornell University
• 刊物名称: GAMES AND ECONOMIC BEHAVIOR
• ISSN/ISSBN: 0899-8256
• DOI: 10.1016/j.geb.2017.11.008
• 发表日期: 2018
• 页码: 220-237
• 关键词: NETWORKS; trust; graph theory; repeated games; Community enforcement

摘要

We present a model of repeated games in large two-sided networks between clients and agents in the presence of third-party observability networks via which clients share information about past transactions. The model allows us to characterize cooperation networks networks in which each agent cooperates with every client that is connected to her. To this end, we show that: [1] an agent a's incentives to cooperate depend only on her beliefs with respect to her local neighborhood-a subnetwork that includes agent a and is of a size that is independent of the size of the entire network; and [2] when an agent a observes the network structure only partially, her incentives to cooperate can be calculated as if the network were a random tree with agent a at its root. (C) 2017 Elsevier Inc. All rights reserved.