The welfare gains from the elimination of social security seem to more than compensate the agents for the lost insurance against life-span and earnings risks.

In this paper we develop a new general methodology for computing the optimal, welfare maximizing social planner's policies for economies with heterogeneous agents in which the stationary distribution of agents is a part of the optimization problem. Previous models analyzing the effects of...

We develop a new methodology for finding optimal government policies in economies with heterogeneous agents. The methodology is solely based on three classes of equilibrium conditions from the government's and individual agent's optimization problems: 1) the first order conditions; 2) the...

We calibrate the model to the U.S. economy in order to quantify these policies and evaluate their impact in the transition and in the steady state. We find that, when the optimal schooling policies are implemented jointly with the optimal income taxes then they are negligible and their effect is...

This paper provides a general methodology for introducing capital accumulation into economies with private information and heterogeneous agents. The agents operate a stochastic neoclassical production technology with capital and labor input. I study a moral hazard economy with unobservable input...

This paper studies the effects of financial intermediation on aggregate levels and the distribution of resources in an economy with wealth-constrained heterogeneous agents and occupational choice. Whether an agent becomes an entrepreneur depends on a realized entrepreneurial ability and...

This paper describes a classroom experiment demnstrating the price mechanism and the clearing of the markets in an endowment economy. Participants receive random endowments of two goods they may trade in order to maximize a given utility function. A market-clearing price is reached when no...

This paper studies the effects of a fully funded social security reform with endogenous fertility in a detailed, general equilibrium life-cycle model with dynasties whose members differ in skills and life uncertainty. We find that as high skill households tend to save relatively more in assets...

We analyze optimal income taxes and optimal schooling subsidies in a dynamic private information economy with observable human capital accumulation. We show that under plausible conditions the marginal schooling subsidies are positive and that they are zero at both endpoints of the skill...