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On the optimality of the Friedman Rule in a New Monetarist Model

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  • Ryoji Hiraguchi
  • Keiichiro Kobayashi

Abstract

We study a monetary model in which buyers choose search intensity and prices are considered as given in the decentralized market. In doing so, we indicate that the Friedman rule may not be optimal. Buyers' search intensity is excessively low under the rule, because their surplus is less than the social surplus under the price-taking regime. A deviation from the rule increases buyers' surplus and search intensity, and thus raises welfare and output. Our result differs from Lagos and Rocheteau (International Economic Review 2005) in which the pricing mechanism is either bargaining or price-posting and the Friedman rule is optimal.

Suggested Citation

  • Ryoji Hiraguchi & Keiichiro Kobayashi, 2013. "On the optimality of the Friedman Rule in a New Monetarist Model," CIGS Working Paper Series 13-005E, The Canon Institute for Global Studies.
    • Handle: RePEc:cnn:wpaper:13-005e
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    References listed on IDEAS

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    1. Ricardo Lagos & Randall Wright, 2005. "A Unified Framework for Monetary Theory and Policy Analysis," Journal of Political Economy, University of Chicago Press, vol. 113(3), pages 463-484, June.
    2. Kiyotaki, Nobuhiro & Wright, Randall, 1989. "On Money as a Medium of Exchange," Journal of Political Economy, University of Chicago Press, vol. 97(4), pages 927-954, August.
    3. Aruoba, S. Boragan & Chugh, Sanjay K., 2010. "Optimal fiscal and monetary policy when money is essential," Journal of Economic Theory, Elsevier, vol. 145(5), pages 1618-1647, September.
    4. Ricardo Lagos & Guillaume Rocheteau, 2005. "Inflation, Output, And Welfare," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 46(2), pages 495-522, May.
    5. Aleksander Berentsen & Guillaume Rocheteau & Shouyong Shi, 2007. "Friedman Meets Hosios: Efficiency in Search Models of Money," Economic Journal, Royal Economic Society, vol. 117(516), pages 174-195, January.
    6. Ping He & Lixin Huang & Randall Wright, 2005. "Money And Banking In Search Equilibrium," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 46(2), pages 637-670, May.
    7. Guillaume Rocheteau & Randall Wright, 2005. "Money in Search Equilibrium, in Competitive Equilibrium, and in Competitive Search Equilibrium," Econometrica, Econometric Society, vol. 73(1), pages 175-202, January.
    8. Ferraris, Leo & Watanabe, Makoto, 2011. "Collateral fluctuations in a monetary economy," Journal of Economic Theory, Elsevier, vol. 146(5), pages 1915-1940, September.
    9. Kiyotaki, Nobuhiro & Wright, Randall, 1993. "A Search-Theoretic Approach to Monetary Economics," American Economic Review, American Economic Association, vol. 83(1), pages 63-77, March.
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    Cited by:

    1. Zannini, Ugo, 2020. "The optimal quantity of money and partially-liquid assets," Journal of Economic Theory, Elsevier, vol. 188(C).
    2. Ryoji Hiraguchi & Keiichiro Kobayashi, 2015. "Choice of market in the monetary economy," CIGS Working Paper Series 15-002E, The Canon Institute for Global Studies.

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    JEL classification:

    • E1 - Macroeconomics and Monetary Economics - - General Aggregative Models

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