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Optimal Monetary Policy with Imperfect Common Knowledge

  • Klaus Adam

This Paper studies optimal nominal demand policy in a flexible price economy with monopolistic competition and inattentive firms (Shannon). Inattentiveness gives rise to idiosyncratic information errors and imperfect common knowledge about the shocks hitting the economy. Strategic complementarities in the price-setting game between firms then strongly amplify the effects of information frictions and the real effects of monetary policy. Therefore, strategic complementarities make it optimal to stabilize the output gap by nominally accommodating shocks to firms’ desired mark-up. As mark-up shocks become more persistent, however, optimal policy is again increasingly characterized by price level stabilization. Shocks to the natural rate of output are found not to generate a policy trade-off.

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Paper provided by Netherlands Central Bank in its series DNB Staff Reports (discontinued) with number 116.

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Date of creation: Jul 2004
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Handle: RePEc:dnb:staffs:116
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Web page: http://www.dnb.nl/en/

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  1. Bartosz Mackowiak & Mirko Wiederholt, 2004. "Optimal Sticky Prices under Rational Inattention," SFB 649 Discussion Papers SFB649DP2005-040, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany, revised Jul 2005.
  2. Hyun Song Shin & Jeffery D. Amato, 2004. "Public and Private Information in Monetary Policy Models," Econometric Society 2004 North American Winter Meetings 59, Econometric Society.
  3. Sargent, Thomas J., 1991. "Equilibrium with signal extraction from endogenous variables," Journal of Economic Dynamics and Control, Elsevier, vol. 15(2), pages 245-273, April.
  4. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
  5. Philippe Bacchetta & Eric van Wincoop, 2003. "Can Information Heterogeneity Explain the Exchange Rate Determination Puzzle?," Working Papers 03.02, Swiss National Bank, Study Center Gerzensee.
  6. Woodford Michael, 2002. "Inflation Stabilization and Welfare," The B.E. Journal of Macroeconomics, De Gruyter, vol. 2(1), pages 1-53, February.
  7. Kenneth Kasa, 1995. "Signal extraction and the propagation of business cycles," Working Papers in Applied Economic Theory 95-14, Federal Reserve Bank of San Francisco.
  8. Moscarini, Giuseppe, 2004. "Limited information capacity as a source of inertia," Journal of Economic Dynamics and Control, Elsevier, vol. 28(10), pages 2003-2035, September.
  9. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April.
  10. Lars E.O. Svensson & Michael Woodford, 2001. "Indicator Variables for Optimal Policy under Asymmetric Information," NBER Working Papers 8255, National Bureau of Economic Research, Inc.
  11. Atsushi Kajii & Stephen Morris, . ""The Robustness of Equilibria to Incomplete Information*''," CARESS Working Papres 95-18, University of Pennsylvania Center for Analytic Research and Economics in the Social Sciences.
  12. Binder,M. & Pesaran,M.H., 1995. "Decision-Making in the Presence of Heterogeneous Information and Social Interactions," Cambridge Working Papers in Economics 9537, Faculty of Economics, University of Cambridge.
  13. Lucas, Robert E, Jr, 1973. "Some International Evidence on Output-Inflation Tradeoffs," American Economic Review, American Economic Association, vol. 63(3), pages 326-34, June.
  14. Ball, Laurence & Gregory Mankiw, N. & Reis, Ricardo, 2005. "Monetary policy for inattentive economies," Journal of Monetary Economics, Elsevier, vol. 52(4), pages 703-725, May.
  15. Stephen Morris & Hyun S Shin, 2001. "Global Games: Theory and Applications," Levine's Working Paper Archive 122247000000001080, David K. Levine.
  16. Townsend, Robert M, 1983. "Forecasting the Forecasts of Others," Journal of Political Economy, University of Chicago Press, vol. 91(4), pages 546-88, August.
  17. Jeffery Amato & Hyun Shin, 2006. "Imperfect common knowledge and the information value of prices," Economic Theory, Springer, vol. 27(1), pages 213-241, 01.
  18. Nimark, Kristoffer P., 2005. "Calvo pricing and imperfect common knowledge: a forward looking model of rational inflation inertia," Working Paper Series 0474, European Central Bank.
  19. Christian Hellwig, 2002. "Public Announcements, Adjustment Delays, and the Business Cycle (November 2002)," UCLA Economics Online Papers 208, UCLA Department of Economics.
  20. Pearlman, Joseph, 1986. "Diverse information and rational expectations models," Journal of Economic Dynamics and Control, Elsevier, vol. 10(1-2), pages 333-338, June.
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