Money Targeting, Heterogeneous Agents and Dynamic Instability

Abstract

Christiano et al. (2005) have shown that a standard medium-sized DSGE model can successfully replicate VAR IRFs to a money supply shock. This important result vanishes under limited asset market partic- ipation. Further, even a moderate fraction of constrained consumers is su¢ cient to dampen the real interest rate reaction to inflation, thereby causeing instability. The introduction of a simple fiscal automatic sta- bilizer restores stability and improves the dynamic performance of the model.Rule of Thumb Consumers, DSGE, Determinacy, Limited Asset, Market Participation