Price dispersion in a directed search model
研究定向搜索模型中部分买家不知价格时的定价均衡，发现卖家策略呈离散分布，当不知情买家比例足够高时，均衡包含可数无穷多个原子。
Abstract This paper investigates a directed search model in which some buyers are uninformed about prices. We find that sellers' strategies are given by discrete distributions in any symmetric pricing equilibrium. When the proportion of uninformed buyers is sufficiently high, the unique symmetric pricing equilibrium involves a countably infinite number of atoms.