This paper analyzes a business cycle model with labor market frictions as well as an extensive labor supply margin. There are exogenous aggregate shocks to productivity, the job finding rate, and the separation rate. Workers also face idiosyncratic productivity (wage) shocks that they cannot...

We build a model that incorporates both labor supply and frictions and use it to assess the effects of various tax and transfer programs on aggregate employment and unemployment. In particular, we assess the debate between Prescott and Ljungqvist and Sargent about the relative importance of...

Rogerson (1988).

We investigate the welfare effects of eliminating business cycles in a model with substantial consumer heterogeneity. The heterogeneity arises from uninsurable idiosyncratic uncertainty in preferences and employment status. We distinguish between short- and long-term unemployment. Long-term...

We introduce a joint model of labor market search and firm size dynamics to explain the differential in labor market and productivity outcomes between the U.S. and the European Union. At the core, our model is a hybrid of the labor market search model by Mortensen and Pissarides (1994) and the...

This paper examines how policies affect people's welfare during business cycles when markets are incomplete. In particular, we analyze cyclical policies such as cyclical taxation and cyclical unemployment insurance. Those policies play two roles: smoothing the income (and consumption) process...

This paper offers several appendices for the article: the integration principle applied to the baseline model, the computational algorithm for the baseline model, calculating the welfare gain, algorithm for the model with short- and long-term unemployment, as well as additional result tables.

This paper examines the causes of observed increase in the duration of unemployment relative to the unemployment rate in the Post-War United States. First we analyze if changes in the demographic composition of U.S. labor force can explain the change in the structure of unemployment duration. In...

This paper measures mismatch between job-seekers and vacancies in the U.S. labor market. Mismatch is defined as the distance between the observed allocation of unemployed workers across sectors and the optimal allocation that solves a planner’s problem. The planner’s allocation...

We develop a model featuring search frictions and a nondegenerate labor supply decision along the extensive margin, and argue that it does a reasonable job of matching labor market flows between employment, unemployment and out of the labor force. Persistent idiosyncratic productivity shocks...