In our dynamic optimizing sticky price model, agents are heterogenous with regard to their assets and their income. Unanticipated inflation redistributes income and wealth. In order to model the wealth distribution, we study a 60-period OLG model with aggregate uncertainty. A positive technology shock increases the concentration of wealth as measured by the Gini coefficient considerably. In particular, a one percent increase of the technology level results in a one percent increase of the Gini coefficient. An unexpected expansionary monetary policy is found to reduce the inequality of the wealth distribution. In addition, we find that the business cycle dynamics in the OLG model in response to both a technology shock and a monetary shock are different from those in the corresponding representative-agent modelDistribution Effects, Unanticipated Inflation, Heterogeneous Agents
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