Worker Heterogeneity and Endogenous Separations in a Matching Model of Unemployment Fluctuations
在DMP匹配模型中引入工人异质性（反映匹配质量和资产差异），发现异质性会降低分离和失业的波动幅度，且模型面临权衡：无法同时实现工资增长差异和失业周期波动的现实性。
We model worker heterogeneity in the rents from being employed in a Diamond-Mortensen-Pissarides model of matching and unemployment. We show that heterogeneity, reflecting differences in match quality and worker assets, reduces the extent of fluctuations in separations and unemployment. We find that the model faces a trade-off— it cannot produce both realistic dispersion in wage growth across workers and realistic cyclical fluctuations in unemployment.