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Optimal Monetary Policy with Imperfect Common Knowledge

  • Adam, Klaus

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 C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 4594.

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Date of creation: Sep 2004
Date of revision:
Handle: RePEc:cpr:ceprdp:4594
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  1. 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.
  2. Laurence Ball & N. Gregory Mankiw & Ricardo Reis, 2003. "Monetary Policy for Inattentive Economies," NBER Working Papers 9491, National Bureau of Economic Research, Inc.
  3. Hyun Song Shin & Jeffery D. Amato, 2003. "Public and private information in monetary policy models," BIS Working Papers 138, Bank for International Settlements.
  4. Mackowiak, Bartosz Adam & Wiederholt, Mirko, 2007. "Optimal Sticky Prices under Rational Inattention," CEPR Discussion Papers 6243, C.E.P.R. Discussion Papers.
  5. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April.
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  7. Christian Hellwig, 2002. "Public Announcements, Adjustment Delays, and the Business Cycle (November 2002)," UCLA Economics Online Papers 208, UCLA Department of Economics.
  8. 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.
  9. 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.
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  11. Michael Woodford, 2001. "Inflation Stabilization and Welfare," NBER Working Papers 8071, National Bureau of Economic Research, Inc.
  12. Kenneth Kasa, 2000. "Forecasting the Forecasts of Others in the Frequency Domain," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 3(4), pages 726-756, October.
  13. Stephen Morris & Hyun S Shin, 2001. "Global Games: Theory and Applications," Levine's Working Paper Archive 122247000000001080, David K. Levine.
  14. 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.
  15. Townsend, Robert M, 1983. "Forecasting the Forecasts of Others," Journal of Political Economy, University of Chicago Press, vol. 91(4), pages 546-88, August.
  16. Binder, Michael & Pesaran, M Hashem, 1998. "Decision Making in the Presence of Heterogeneous Information and Social Interactions," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 39(4), pages 1027-52, November.
  17. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
  18. 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.
  19. 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.
  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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