Worker mobility and UI extensions

We develop an equilibrium search model with a labor force participation decision, job -to -job transitions, and endogenous separations. The calibrated model perfectly matches the observed labor market flows in US data. We use the model to simulate the effects of an extension of unemployment insurance benefits to 99 weeks. The reform leads to a decrease in employment, an increase in the labor force participation and unemployment rate, while it leaves labor productivity roughly constant. Using a model -based decomposition, as well as comparisons with alternative simplified models, we show that modeling workers' participation decisions, job -tojob transitions, and endogenous separations together is crucial for a complete and accurate analysis of UI reforms.