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Optimal Sticky Prices under Rational Inattention

  • Mackowiak, Bartosz Adam
  • Wiederholt, Mirko

This paper presents a model in which price setting firms optimally decide what to pay attention to, subject to a constraint on information flow. When idiosyncratic conditions are more variable or more important than aggregate conditions, firms pay more attention to idiosyncratic conditions than to aggregate conditions. When we calibrate the model to match the large average absolute size of price changes observed in micro data, prices react fast and by large amounts to idiosyncratic shocks, but prices react only slowly and by small amounts to nominal shocks. Nominal shocks have strong and persistent real effects. We use the model to investigate how the optimal allocation of attention and the dynamics of prices depend on the firms' environment.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 6243.

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Date of creation: Apr 2007
Date of revision:
Handle: RePEc:cpr:ceprdp:6243
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