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

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  • Bhattacharya, Joydeep
  • Haslag, Joseph H.
  • Russell, Steven

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.

Suggested Citation

  • Bhattacharya, Joydeep & Haslag, Joseph H. & Russell, Steven, 2005. "The role of money in two alternative models: When is the Friedman rule optimal, and why?," ISU General Staff Papers 200511010800001196, Iowa State University, Department of Economics.
    • Handle: RePEc:isu:genstf:200511010800001196
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    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization; Treasury Policy

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