Labor market dynamics with sorting
研究了一个包含双边异质性和生产互补性的动态搜索匹配模型，分析了在正向生产率冲击下企业招聘行为的变化，以及失业工人类型分布的缓慢调整对就业创造的短期放大和长期抑制作用。
I study a dynamic search-matching model with two-sided heterogeneity, a production complementarity that induces labor market sorting, and aggregate shocks. In response to a positive productivity shock, incentives to sort increase disproportionately. Firms respond by posting additional vacancies, and the strength of the response is increasing in firm productivity. The distribution of unemployment worker types adjusts slowly, which amplifies job creation in the short run. In the long run, falling unemployment curtails the firms' vacancy posting. The model closely matches time-series moments from U.S. labor market data and produces realistic degrees of wage dispersion and labor market sorting.