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Market polarization and the phillips curve

Author

Listed:
  • Javier Andrés

    (Universidad de Valencia)

  • Óscar Arce

    (Banco de España)

  • Pablo Burriel

    (Banco de España)

Abstract

The Phillips curve has flattened out over the last decades. We develop a model that rationalizes this phenomenon as a result of the observed increase in polarization in many industries, a process along which a few top firms gain an increasing share of their industry market. In the model, firms compete à la Bertrand and there is exit and endogenous market entry, as well as optimal up and downgrading of technology. Firms with larger market shares find optimal to dampen the response of their price changes, thus cushioning the shocks to their marginal costs through endogenous countercyclical markups. Thus, regardless of its causes (technology, competition, barriers to entry, etc.), the recent increase in polarization in many industries emerges in the model as the key factor in explaining the muted responses of inflation to movements in the output gap witnessed recently.

Suggested Citation

  • Javier Andrés & Óscar Arce & Pablo Burriel, 2021. "Market polarization and the phillips curve," Working Papers 2106, Banco de España.
    • Handle: RePEc:bde:wpaper:2106
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    Citations

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    Cited by:

    1. Beatriz González & Galo Nuño & Dominik Thaler & Silvia Albrizio, 2021. "Firm heterogeneity, capital misallocation and optimal monetary policy," Working Papers 2145, Banco de España.
    2. Brand, Claus & Obstbaum, Meri & Coenen, Günter & Sondermann, David & Lydon, Reamonn & Ajevskis, Viktors & Hammermann, Felix & Angino, Siria & Hernborg, Nils & Basso, Henrique & Hertweck, Matthias & Bi, 2021. "Employment and the conduct of monetary policy in the euro area," Occasional Paper Series 275, European Central Bank.
    3. Kouvavas, Omiros & Osbat, Chiara & Reinelt, Timo & Vansteenkiste, Isabel, 2021. "Markups and inflation cyclicality in the euro area," Working Paper Series 2617, European Central Bank.

    More about this item

    Keywords

    firm heterogeneity; Bertrand competition; Phillips curve; market share;
    All these keywords.

    JEL classification:

    • 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
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance

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