We build a life cycle model of labor supply that incorporates changes along both the intensive and extensive margin and use it to assess the consequences of changes in tax and transfer policies on equilibrium hours of work. We find that changes in taxes have large aggregate effects on hours of...

The large differences in hours of work across industrialized countries reflect large differences in both employment to population ratios and hours per worker. We imbed the canonical model of labor supply into a standard matching model to produce a model in which both the intensive and extensive...

We formulate a version of the growth model in which production is carried out by heterogeneous plants and calibrate it to US data. In the context of this model we argue that differences in the allocation of resources across heterogeneous plants may be an important factor in accounting for...