The role of money in two alternative models: When is the Friedman rule optimal, and why?

Joydeep Bhattacharya, Joseph Haslag and Steven Russell

ISU General Staff Papers from Iowa State University, Department of Economics

Abstract: In models of money with an infinitely lived representative agent (ILRA models), the optimal monetary policy is almost always the Friedman rule. In overlapping generations (OG) models, by contrast, the Friedman rule may not be optimal. In this paper, we use this difference in monetary policy prescriptions to help us identify and study the key difference between these two models as models of money. We study the welfare properties of monetary policy in a simple OG model under two very different money demand specifications and two alternative assumptions about the generational timing of taxes for money retirement. We conclude that the key difference between ILRA and OG monetary models is that in the latter, the standard method for constructing a monetary regime causes transactions involving money to become intergenerational transfers. Under alternative government fiscal/monetary regimes that offset these intergenerational transfers, the Friedman rule is always optimal.

Date: 2005-11-01
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Related works:
Journal Article: The role of money in two alternative models: When is the Friedman rule optimal, and why? (2005)
Working Paper: The Role of Money in Two Alternative Models: When is the Friedman Rule Optimal, and Why? (2004)
Working Paper: The role of money in two alternative models: When is the Friedman rule optimal, and why? (2004)
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