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Optimal monetary policy with endogenous entry and product variety

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  • Bilbiie, Florin O.
  • Fujiwara, Ippei
  • Ghironi, Fabio

Abstract

Deviations from long-run price stability are optimal in the presence of endogenous entry and product variety in a sticky-price model in which price stability would be optimal otherwise Long-run inflation (deflation) is optimal when the benefit of variety to consumers falls short of (exceeds) the market incentive for creating that variety—the desired markup; Price indexation exacerbates this mechanism. Plausible preference specifications and parameter values justify positive long-run inflation rates. However, short-run price stability (around this non-zero trend) is close to optimal, even in the presence of endogenously time-varying desired markups that distort the intertemporal allocation of resources.

Suggested Citation

  • Bilbiie, Florin O. & Fujiwara, Ippei & Ghironi, Fabio, 2014. "Optimal monetary policy with endogenous entry and product variety," Journal of Monetary Economics, Elsevier, vol. 64(C), pages 1-20.
  • Handle: RePEc:eee:moneco:v:64:y:2014:i:c:p:1-20 DOI: 10.1016/j.jmoneco.2014.02.006
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    More about this item

    Keywords

    Entry; Optimal inflation rate; Price stability; Product variety; Ramsey-optimal monetary policy;

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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