We analyze the interaction between risk sharing and capital accumulation in a stochastic OLG model with production. We give a complete characterization of interim Pareto optimality. Our characterization also subsumes equilibria with a PAYG social security system. In a competitive equilibrium...

We analyze the interaction between risk sharing and capital accumulation in a stochastic OLG model with production. We give a complete characterization of interim Pareto optimality. Our characterization also subsumes equilibria with a PAYG social security system. In a competitive equilibrium...

We analyze the interaction between risk sharing and capital accumulation in a stochastic OLG model with production. We give a complete characterization of interim Pareto optimality. Our characterization also subsumes equilibria with a PAYG social security system. In a competitive equilibrium...

Opponents of allowing younger workers to privately invest a portion of their Social Security taxes through personal accounts have long pointed to the supposed riskiness of private investment. The volatility of private capital markets over the past several years, and especially recent declines in...

In a general equilibrium economy with uninsurable aggregate liquidity shocks, we show that public information may trigger allocative inefficiency and liquidity crises. Entrepreneurs do not internalize the negative impact of their investment decisions on the equilibrium risk of liquidity...

In an OLG (overlapping generations) economy with only two risky factors of production, human capital and physical capital, a social security system that optimally shares risks among generations was incorporated. By allowing for physical capital acumulation, this paper extends John Compbell's...

In the context of an aging economy, the question addressed in this paper is: since pension systems differ in the funding methods -- pay-as-you-go (PAYG) or fully funded -- and payment schemes -- Beveridgean or Bismarckian -- under which setting can a sustainable public pension system provide...