Marriage and Class
构建了一个异质性个体、效用不可转移的匹配模型，研究婚姻市场中的均衡分类，发现一种有趣的分类外部性可支持多重稳态均衡。
Here we consider a matching model where agents are heterogeneous and utilities nontransferable. We utilize this framework to study how equilibrium sorting takes place in marriage markets. We impose conditions that guarantee the existence of a steady state equihbrium and then characterize it. Several examples are developed to illustrate the richness of equilibria. The model reveals an interesting sorting externality that can support multiple steady state equilibria, even with constant returns to matching.