NEW MICROFOUNDATIONS FOR THE AGGREGATE MATCHING FUNCTION*
提出一个基于电话线泊松排队过程的匹配模型，为总量匹配函数提供微观基础，推导出CES匹配函数，并解释搜索成本线性时近似为柯布-道格拉斯形式，有助于理解参数的经济含义。
Empirical studies of the aggregate labor market matching function have favored a Cobb–Douglas functional form, for which there are no microfoundations in the existing literature. I present a new model for the matching process, based on a “telephone‐line” Poisson queuing process, which, unlike other microeconomic approaches, can be integrated directly into standard theoretical search models. This implies a CES matching function, approximately Cobb–Douglas when search costs are approximately linear. The model allows empirical estimates of matching function parameters to be interpreted in terms of the costs and benefits of search.