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Imprecision of Central Bank Announcements and Credibility

  • Daniel Laskar

    ()

    (EEP-PSE - Ecole d'Économie de Paris - Paris School of Economics - Ecole d'Économie de Paris, PSE - Paris-Jourdan Sciences Economiques - CNRS : UMR8545 - École des Hautes Études en Sciences Sociales (EHESS) - École des Ponts ParisTech (ENPC) - École normale supérieure [ENS] - Paris - Institut national de la recherche agronomique (INRA))

We consider a model where the central bank faces a credibility problem in its announcements, but also cares about its credibility and, therefore, wants to make truthful announcements. We show that, although the central bank would be able to perfectly transmit its information to the private sector through precise announcements, the central bank may nonetheless prefer to make imprecise announcements. This choice of the central bank would be suboptimal from the point of view of society. However, if the central bank gives enough weight to making truthful announcements, this suboptimality disappears, because the central bank would then prefer precise announcements to imprecise announcements.

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Paper provided by HAL in its series PSE Working Papers with number halshs-00562595.

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Date of creation: 29 Nov 2010
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Handle: RePEc:hal:psewpa:halshs-00562595
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  1. Barro, Robert J & Gordon, David B, 1983. "A Positive Theory of Monetary Policy in a Natural Rate Model," Journal of Political Economy, University of Chicago Press, vol. 91(4), pages 589-610, August.
  2. Carin van der Cruijsen & Sylvester Eijffinger, 2007. "The economic impact of central bank transparency: a survey," DNB Working Papers 132, Netherlands Central Bank, Research Department.
  3. Alan S. Blinder & Michael Ehrmann & Marcel Fratzscher & Jakob De Haan & David-Jan Jansen, 2008. "Central Bank Communication and Monetary Policy: A Survey of Theory and Evidence," Journal of Economic Literature, American Economic Association, vol. 46(4), pages 910-45, December.
  4. Alan S. Blinder, 1999. "Central Bank Credibility: Why Do We Care? How Do We Build It?," NBER Working Papers 7161, National Bureau of Economic Research, Inc.
  5. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-51, November.
  6. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," CEPR Discussion Papers 2139, C.E.P.R. Discussion Papers.
  7. Kydland, Finn E & Prescott, Edward C, 1977. "Rules Rather Than Discretion: The Inconsistency of Optimal Plans," Journal of Political Economy, University of Chicago Press, vol. 85(3), pages 473-91, June.
  8. Vickers, John, 1986. "Signalling in a Model of Monetary Policy with Incomplete Information," Oxford Economic Papers, Oxford University Press, vol. 38(3), pages 443-55, November.
  9. Hans Gersbach & Volker Hahn, 2008. "Forward Guidance for Monetary Policy: Is It Desirable?," CER-ETH Economics working paper series 08/84, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.
  10. Stein, Jeremy C, 1989. "Cheap Talk and the Fed: A Theory of Imprecise Policy Announcements," American Economic Review, American Economic Association, vol. 79(1), pages 32-42, March.
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