In a stochastic economy with overlapping generations, fiscal policy affects the allocation of aggregate risks. The paper shows how to compute the welfare effects of marginal policy changes that shift risk across cohorts, in general and for an application to social security equity investments. I...

We examine the possibility of a Pareto-improving pay-as-you-go social security system, using an ex-ante welfare criterion. Our objective is to identify the conditions under which a suitably designed pay-as-you-go social security system is welfare improving, when markets are complete and...

The goal of this paper is to determine the effects of different social security regimes on job search. A less generous pension system induces higher savings across the life cycle and makes agents wealthier and thus more reluctant to accept low wage offers. On the other hand, as the social...

We investigate why social security arose when it did in the United States to replace family based old-age care. We hypothesize that increases in life-expectancy (conditional on reaching adulthood) interrupted the traditional familial transfer of land on the farm and also led to crowding of that...

We analyze the sustainability of intergenerational transfers in politico-economic equilibrium. We argue that these transfers naturally arise in a Markov perfect equilibrium in the fundamental state variables. In contrast to earlier literature, our explanation does not resort to altruism,...

This paper estimates a life cycle model of labor supply, retirement and savings behavior in which future health status and wages are uncertain. Individuals face a fixed cost of work and cannot borrow against future labor, pension, or Social Security income. The method of simulated moments is...

We explore the accumulation of assets in the presence of limited insurance against idiosyncratic shocks, borrowing constraints and endogenous labor productivity due to the so-called "nutrition curve". We show that in such an environment, any stationary equilibrium is characterized by a polarized...

This paper quantifies the size of precautionary savings implied by a dynamic general equilibrium model with heterogeneous agents when explicitly considering the labor supply decision of households. I find that precautionary savings are smaller than if they were measured by use of a model economy...