  We consider dynamic stochastic economies with heterogeneous agents and
introduce the concept of uniformly self-justified equilibria (USJE) --
temporary equilibria for which forecasts are best uniform approximations to a
selection of the equilibrium correspondence. In a USJE, individuals'
forecasting functions for the next period's endogenous variables are assumed to
lie in a compact, finite-dimensional set of functions, and the forecasts
constitute the best approximation within this set. We show that USJE always
exist and develop a simple algorithm to compute them. Therefore, they are more
tractable than rational expectations equilibria that do not always exist. As an
application, we discuss a stochastic overlapping generations exchange economy
and provide numerical examples to illustrate the concept of USJE and the
computational method.
