This article considers a pure-endowment stationary stochastic overlapping generations economy, in which agents have maximin expected utility preferences. Two main results are obtained. First, we show that multiple stationary monetary equilibria exist, and hence real as well as price...

It has been known that, in the overlapping generations (OLG) model with the complete market, we can judge optimality of an equilibrium allocation by examining the associated equilibrium price. This article reexamine this observation in a stochastic OLG model with the maxmin expected utility...

This article develops a tractable graphical device for analyzing the stochastic overlapping generations (SOLG) economy. In this paper, the graphical device is applied to the theoretical study on stochastic bubbles per Weil [”Confidence and the real value of money in an overlapping generations...

This article reexamines optimality of the Friedman rule in an economy, wherein (i) spatial separation and limited communication create a transactions role for money (ii) banks arise to provide liquidity, and (iii) agents are nonsmooth ambiguity aversion. It is shown that the structure of the set...

This article considers an overlapping generations model with nominal idiosyncratic shocks. Such shocks are described as if they are exogenous nominal taxes/subsidies and cause nondegenerate ex-post distributions of money. We then show that the optimal money growth rate exists and is greater than one

This article examines the optimality of the Freidman rule in an overlapping generations model with spatial separation, wherein asymmetric liquidity shocks are observed. Suboptimality of the Freidman rule is shown. Furthermore, when the number of locations is sufficiently large, there is no room...

Motivated by recent climate actions of central banks and supervisors, this study develops an overlapping generations model of the environment and money and explores a role of monetary policy on climate problems. It is shown that a stationary monetary equilibrium exists uniquely but be suboptimal...