We build a life cycle model of labor supply in which individuals choose both the fraction of life spent in employment and hours while employed. We develop a simple graphical representation of the steady state equilibrium labor supply choice and show that a tax on labor income used to finance a...

I develop a general equilibrium life cycle model with an intensive and extensive margin of labor supply and endogenous human capital accumulation. I use the model to assess the effects of changes to various features of social security on labor supply outcomes. Of particular interest are changes...

This paper studies lifetime aggregate labor supply with endogenous workweek length. Such a theory is needed to evaluate various government policies. A key feature of our model is a nonlinear mapping from hours worked to labor services. This gives rise to an endogenous workweek that can differ...