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Output-inflation trade-offs and the optimal inflation rate

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  • Kurozumi, Takushi
  • Van Zandweghe, Willem

Abstract

We show that a positive superelasticity of demand, often referred to as “Marshall's Second Law of Demand,” is a new push factor of optimal inflation in staggered price models. The positive superelasticity alters the trade-offs between output and inflation in the models. It allows higher trend inflation to steepen the slope of a model-based Phillips curve and lower the steady-state average markup, and thus reduces the inflation-related weight in a model-based welfare function for higher trend inflation and the steady-state welfare cost of higher trend inflation. Consequently, the positive superelasticity can make the optimal trend inflation rate positive and lessen the welfare difference between inflation targets of 2 percent and 4 percent.

Suggested Citation

  • Kurozumi, Takushi & Van Zandweghe, Willem, 2024. "Output-inflation trade-offs and the optimal inflation rate," Journal of Economic Dynamics and Control, Elsevier, vol. 164(C).
    • Handle: RePEc:eee:dyncon:v:164:y:2024:i:c:s0165188924000666
    DOI: 10.1016/j.jedc.2024.104874
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    1. Takushi Kurozumi & Willem Van Zandweghe, 2016. "Kinked Demand Curves, the Natural Rate Hypothesis, and Macroeconomic Stability," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 20, pages 240-257, April.
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    Cited by:

    1. Kurozumi, Takushi & Van Zandweghe, Willem, 2022. "Macroeconomic changes with declining trend inflation: Complementarity with the superstar firm hypothesis," European Economic Review, Elsevier, vol. 141(C).
    2. Yasufumi Gemma & Takushi Kurozumi & Mototsugu Shintani, 2023. "Trend Inflation and Evolving Inflation Dynamics:A Bayesian GMM Analysis," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 51, pages 506-520, December.
    3. Cecion, Martina & Coenen, Günter & Gerke, Rafael & Le Bihan, Hervé & Motto, Roberto & Aguilar, Pablo & Ajevskis, Viktors & Giesen, Sebastian & Albertazzi, Ugo & Gilbert, Niels & Al-Haschimi, Alexander, 2021. "The ECB’s price stability framework: past experience, and current and future challenges," Occasional Paper Series 269, European Central Bank.
    4. Santoro, Sergio & Viviano, Eliana, 2022. "Optimal trend inflation, misallocation and the pass-through of labour costs to prices," Working Paper Series 2761, European Central Bank.

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    More about this item

    Keywords

    Inflation target; Superelasticity of demand; Marshall's second law of demand; Staggered price-setting; Average markup; Welfare cost of inflation;
    All these keywords.

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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