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Optimal Monetary Policy and Transparency under Informational Friction

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  • Wataru Tamura

    (The University of Tokyo)

Abstract

This paper examines optimal monetary policy and central bank transparency in an economy where firms set prices under informational frictions. The economy modeled in this paper is subject to two types of shocks that determine the efficient level of output and firms’ desired mark-ups. To minimize the welfare-reducing output gap and price dispersion among firms, the central bank controls firms’ incentives and expectations by using a monetary instrument and by disclosing information on the fundamentals. This paper shows that the optimal policy comprises the partial disclosure of information and the adjustment of the monetary instrument contingent on the disclosed information. Under this optimal policy, public information is formed by the weighted difference of the two shocks in order to induce a negative correlation between their conditional expectations, while monetary policy should offset the detrimental effect of such a disclosure policy on price stabilization.

Suggested Citation

  • Wataru Tamura, 2013. "Optimal Monetary Policy and Transparency under Informational Friction," CARF F-Series CARF-F-329, Center for Advanced Research in Finance, Faculty of Economics, The University of Tokyo.
  • Handle: RePEc:cfi:fseres:cf329
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    File URL: https://www.carf.e.u-tokyo.ac.jp/old/pdf/workingpaper/fseries/F329.pdf
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    References listed on IDEAS

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    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 910-945, December.
    4. Adam, Klaus, 2007. "Optimal monetary policy with imperfect common knowledge," Journal of Monetary Economics, Elsevier, vol. 54(2), pages 267-301, March.
    5. Faust, Jon & Svensson, Lars E O, 2001. "Transparency and Credibility: Monetary Policy with Unobservable Goals," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(2), pages 369-397, May.
    6. Baeriswyl, Romain & Cornand, Camille, 2010. "The signaling role of policy actions," Journal of Monetary Economics, Elsevier, vol. 57(6), pages 682-695, September.
    7. Volker Hahn, 2012. "Should central banks remain silent about their private information on cost-push shocks?," Oxford Economic Papers, Oxford University Press, vol. 64(4), pages 593-615, October.
    8. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
    9. Stephen Morris & Hyun Song Shin, 2007. "Optimal Communication," Journal of the European Economic Association, MIT Press, vol. 5(2-3), pages 594-602, 04-05.
    10. Hans Gersbach & Volker Hahn, 2011. "Monetary Policy Inclinations," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 43(8), pages 1707-1717, December.
    11. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April.
    12. Petra M. Geraats, 2002. "Central Bank Transparency," Economic Journal, Royal Economic Society, vol. 112(483), pages 532-565, November.
    13. Baeriswyl, Romain & Cornand, Camille, 2010. "The signaling role of policy actions," Journal of Monetary Economics, Elsevier, vol. 57(6), pages 682-695, September.
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