Monetary equilibria and Knightian uncertainty

This article considers a pure-endowment stationary stochastic overlapping generations economy, in which agents have maxmin expected utility preferences. Two main results are obtained. First, we show that multiple stationary monetary equilibria exist. Consequently, real and price indeterminacies arise under the assumption that aggregate shock exists. Second, we show that each of these stationary monetary equilibria is conditionally Pareto optimal, i.e., no other stationary allocations strictly Pareto dominate the equilibrium allocations.