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Monetary policy under finite speed of trades and myopia

  • Gaël Giraud

    ()

    (CES - Centre d'économie de la Sorbonne - CNRS : UMR8174 - Université Paris I - Panthéon-Sorbonne, EEP-PSE - Ecole d'Économie de Paris - Paris School of Economics - Ecole d'Économie de Paris, ESCP-Europe - Campus de Paris)

  • Nguenamadji Orntangar

    ()

    (CES - Centre d'économie de la Sorbonne - CNRS : UMR8174 - Université Paris I - Panthéon-Sorbonne, EEP-PSE - Ecole d'Économie de Paris - Paris School of Economics - Ecole d'Économie de Paris)

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    This paper provides a new framework for monetary macro-policy, where the Central Bank potentially intervenes both on short-term and long-term loans markets, and can do this alternatively by manipulating interest rates or money supply. Following Bonnisseau and Orntangar (2010) and Giraud and Tsomokos (2010), we develop a discrete-time out-of-equilibrium dynamics with real trades, performed by myopic heterogeneous households in a cash-in-advance economy with several goods. Positive value and non-neutrality of fiat money are shown to be compatible with a local quantity theory of money. Every monetary policy induces a globally unique trade path, both for real and nominal variables.Thus, monetary policy and myopia suffice to pin down the absolute level of prices. However, a minimal money growth rate is exhibited, which depends upon the level of households' long-term debt and current gains-to-trade. Below this growth rate, the economy falls into a local liquidity trap ; above it, the economy eventually converges towards a Pareto-optimal rest-point while inflation raises in an unbounded fashion. As a consequence, a literal application of Taylor's rule leads the economy to a local liquidity trap. These findings provide insight into recent non-conventional monetary policies led by Central Banks.

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    Paper provided by HAL in its series Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) with number halshs-00609824.

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    Date of creation: Jul 2011
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    Handle: RePEc:hal:cesptp:halshs-00609824
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    1. Clarida, R. & Gali, J. & Gertler, M., 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Working Papers 99-13, C.V. Starr Center for Applied Economics, New York University.
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    3. J. Doyne Farmer & John Geanakoplos, 2008. "The Virtues and Vices of Equilibrium and the Future of Financial Economics," Levine's Working Paper Archive 122247000000002067, David K. Levine.
    4. Gaël Giraud & Dimitrios Tsomocos, 2010. "Nominal uniqueness and money non-neutrality in the limit-price exchange process," Economic Theory, Springer, vol. 45(1), pages 303-348, October.
    5. Jean-Marc Bonnisseau & Orntangar Nguenamadji, 2009. "Discrete Walrasian Exchange Process," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00442865, HAL.
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    9. Bonnisseau, Jean-Marc & Nguenamadji, Orntangar, 2010. "On the uniqueness of local equilibria," Journal of Mathematical Economics, Elsevier, vol. 46(5), pages 623-632, September.
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    13. John M. Roberts, 1994. "Is inflation sticky?," Working Paper Series / Economic Activity Section 152, Board of Governors of the Federal Reserve System (U.S.).
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