This paper proposes an empirical method for estimating a long-run trend for the unemployment rate that is grounded in the modern theory of unemployment. I write down an unobserved components model and identify the cyclical and trend components of the underlying unemployment flows, which in turn...

We present a model with search frictions and heterogeneous agents that allows us to decompose the overall increase in US wage inequality in the last 30 years into its within- and between-firm and skill components. We calibrate the model to evaluate how much of the overall rise in wage inequality...