受约束的交易网络

摘要：

基于双边（不可分割）合同的交易可以用网络来表示。顶点对应于代理人，而弧代表双边合同的非价格元素。给定每个弧的价格，代理选择使其效用最大化的事件弧。我们扩大了模型，允许polymatroidal约束的一组合同，可以被解释为建模有限的一对一的替代。我们证明了双边市场存在一个竞争均衡，但对于多边市场，这可能是不可能的。

英文摘要：

Trades based on bilateral (indivisible) contracts can be represented by a network. Vertices correspond to agents while arcs represent the non-price elements of a bilateral contract. Given prices for each arc, agents choose the incident arcs that maximize their utility. We enlarge the model to allow for polymatroidal constraints on the set of contracts that may be traded which can be interpreted as modeling limited one for-one substitution. We show that for two-sided markets there exists a competitive equilibrium however for multi-sided markets this may not be possible.

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。