We propose a method to solve models with heterogeneous agents and aggregate uncertainty. The law of motion describing aggregate behavior is obtained by explicitly aggregating the individual policy rule. The algorithm is simpler and faster than existing algorithms that rely on parameterization of...

The problem of maximizing the expected utility from terminal wealth in the presence of a stochastic endowment and constraints on the portfolio choices is examined. We model short-sale and borrowing constraints, as well as incomplete markets, as special cases of constraints. The existence of...

We construct a method to solve models with heterogeneous agents and aggregate uncertainty that is simpler than existing algorithms; the aggregate law of motion is obtained neither by simulation nor by parameterization of the cross-sectional distribution, but by explicitly aggregating the...

We introduce a ''new'' algorithm that can be used to solve stochastic dynamic general equilibrium models. This approach exploits the fact that the equations defining equilibrium can be viewed as set of algebraic equations in the neighborhood of the steady-state. Then a recursive scheme, which...

This paper proposes a comprehensive framework for projecting public heath and long-term care expenditures. Notably, it considers the impact of demographic and non-demographic effects for both health and long-term care. Compared with other studies, the paper extends the demographic drivers by...

A framework for describing nonlinear rational expectation models is developed that synthesizes previously described approaches. Computational issues for solving such models include how the expectation operator is approximated, what family of approximation is used for the solution function, what...

We introduce a new algorithm that can be used to solve stochastic dynamic general equilibrium models. This approach exploits the fact that the equations defining equilibrium can be viewed as a set of differential algebraic equations in the neighborhood of the steady-state. Then a modified...