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Optimal Monetary Policy with Imperfect Common Knowledge

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  • Adam, Klaus

Abstract

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.

Suggested Citation

  • Adam, Klaus, 2004. "Optimal Monetary Policy with Imperfect Common Knowledge," CEPR Discussion Papers 4594, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:4594
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    More about this item

    Keywords

    information imperfections; nominal demand management; Private information; rational inattention; Shannon capacity;
    All these keywords.

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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