IDEAS home Printed from https://ideas.repec.org/p/ime/imedps/24-e-17.html
   My bibliography  Save this paper

Innovation Choice, Product Life Cycles, and Optimal Trend Inflation

Author

Listed:
  • Hiroshi Inokuma

    (Director, Institute for Monetary and Economic Studies, Bank of Japan (E-mail: hiroshi.inokuma@boj.or.jp))

  • Mitsuru Katagiri

    (Associate Professor, Faculty of Business Administration, Hosei University (E-mail: mitsuru.katagiri@hosei.ac.jp))

  • Nao Sudo

    (Deputy Director-General, Financial System and Bank Examination Department (E-mail: nao.sudou@boj.or.jp))

Abstract

This study revisits the old and ongoing challenge of identifying the optimal trend inflation rate, using a novel model that incorporates a firm's innovation choices, product life cycles, and the interplay of the two factors. We construct an endogenous growth model with sticky prices, where firms have two options: to be an innovator or to be a follower. An innovator causes creative destruction, forcing all the incumbents to exit, and becomes a monopolist in its sector. A follower enters an existing sector by offering a product that is slightly different from the incumbent's products, inducing a product life cycle within the sector. Trend inflation impacts the firm's decision regarding which of the two options to choose by changing expected markups and profits. We show that the optimal trend inflation rate could exceed zero as it mitigates potential innovator losses upon the entry of followers, which in turn depresses the incentives for firms to be followers, promoting creative destruction and faster economic growth.

Suggested Citation

  • Hiroshi Inokuma & Mitsuru Katagiri & Nao Sudo, 2024. "Innovation Choice, Product Life Cycles, and Optimal Trend Inflation," IMES Discussion Paper Series 24-E-17, Institute for Monetary and Economic Studies, Bank of Japan.
    • Handle: RePEc:ime:imedps:24-e-17
    as

    Download full text from publisher

    File URL: https://www.imes.boj.or.jp/research/papers/english/24-E-17.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Olivier Coibion & Yuriy Gorodnichenko & Johannes Wieland, 2012. "The Optimal Inflation Rate in New Keynesian Models: Should Central Banks Raise Their Inflation Targets in Light of the Zero Lower Bound?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(4), pages 1371-1406.
    2. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    3. Klaus Adam & Henning Weber, 2023. "Estimating the Optimal Inflation Target from Trends in Relative Prices," American Economic Journal: Macroeconomics, American Economic Association, vol. 15(3), pages 1-42, July.
    4. Olivier Coibion & Yuriy Gorodnichenko & Johannes Wieland, 2012. "The Optimal Inflation Rate in New Keynesian Models: Should Central Banks Raise Their Inflation Targets in Light of the Zero Lower Bound?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(4), pages 1371-1406.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Daisuke Miyakawa & Koki Oikawa & Kozo Ueda, 2022. "Reallocation Effects Of Monetary Policy," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 63(2), pages 947-975, May.
    2. Oikawa, Koki & Ueda, Kozo, 2018. "The optimal inflation rate under Schumpeterian growth," Journal of Monetary Economics, Elsevier, vol. 100(C), pages 114-125.
    3. Ambrocio, Gene & Ferrero, Andrea & Jokivuolle, Esa & Ristolainen, Kim, 2022. "What should the inflation target be? Views from 600 economists," Bank of Finland Research Discussion Papers 7/2022, Bank of Finland.
    4. Adam, Klaus & Gautier, Erwan & Santoro, Sergio & Weber, Henning, 2022. "The case for a positive euro area inflation target: Evidence from france, germany and italy," Journal of Monetary Economics, Elsevier, vol. 132(C), pages 140-153.
    5. Klaus Adam & Henning Weber, 2023. "Estimating the Optimal Inflation Target from Trends in Relative Prices," American Economic Journal: Macroeconomics, American Economic Association, vol. 15(3), pages 1-42, July.
    6. Klaus Adam & Oliver Pfäuti & Timo Reinelt, 2020. "Falling Natural Rates, Rising Housing Volatility and the Optimal Inflation Target," CRC TR 224 Discussion Paper Series crctr224_2020_235, University of Bonn and University of Mannheim, Germany.
    7. Santoro, Sergio & Weber, Henning, 2023. "Micro price heterogeneity and optimal inflation," Occasional Paper Series 322, European Central Bank.
    8. Schoenle, Raphael & L'Huillier, Jean-Paul, 2019. "Raising the Inflation Target: How Much Extra Room Does It Really Give?," CEPR Discussion Papers 14142, C.E.P.R. Discussion Papers.
    9. 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.
    10. Ambrocio, Gene & Ferrero, Andrea & Jokivuolle, Esa & Ristolainen, Kim, 2022. "What Should the Inflation Target Be? Views from 600 Economists," CEPR Discussion Papers 17289, C.E.P.R. Discussion Papers.
    11. repec:zbw:bofrdp:2022_007 is not listed on IDEAS
    12. Stephen G. Hall, 2025. "An optimal inflation rate for South Africa," Economic Change and Restructuring, Springer, vol. 58(3), pages 1-29, June.
    13. Gürkaynak, Refet S. & Kısacıkoğlu, Burçin & Lee, Sang Seok, 2022. "Exchange rate and inflation under weak monetary policy: Turkey verifies theory," CFS Working Paper Series 679, Center for Financial Studies (CFS).
    14. Schnorpfeil, Philip & Weber, Michael & Hackethal, Andreas, 2023. "Households' response to the wealth effects of inflation," SAFE Working Paper Series 400, Leibniz Institute for Financial Research SAFE.
    15. Dupraz, Stéphane & Nakamura, Emi & Steinsson, Jón, 2025. "A plucking model of business cycles," Journal of Monetary Economics, Elsevier, vol. 152(C).
    16. Siddartha Chattopadhyay & Betty C. Daniel, 2018. "Taylor-Rule Exit Policies for the Zero Lower Bound," International Journal of Central Banking, International Journal of Central Banking, vol. 14(5), pages 1-53, December.
    17. Roberto M. Billi, 2020. "Output Gaps and Robust Monetary Policy Rules," International Journal of Central Banking, International Journal of Central Banking, vol. 16(2), pages 125-152, March.
    18. repec:hal:spmain:info:hdl:2441/713kqq1pgu80lr8fn0lsuuh8lf is not listed on IDEAS
    19. Magill, Michael & Quinzii, Martine, 2014. "Anchoring expectations of inflation," Journal of Mathematical Economics, Elsevier, vol. 50(C), pages 86-105.
    20. Bianchi, Francesco & Melosi, Leonardo & Rottner, Matthias, 2021. "Hitting the elusive inflation target," Journal of Monetary Economics, Elsevier, vol. 124(C), pages 107-122.
    21. Lucian Briciu & Stefan Hohberger & Luca Onorante & Beatrice Pataracchia & Marco Ratto & Lukas Vogel, 2023. "The ECB Strategy Review - Implications for the Space of Monetary Policy," European Economy - Discussion Papers 193, Directorate General Economic and Financial Affairs (DG ECFIN), European Commission.
    22. Philippe Andrade & Jordi Gali & Herve Le Bihan & Julien Matheron, 2019. "The Optimal Inflation Target and the Natural Rate of Interest," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 50(2 (Fall)), pages 173-255.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;
    ;

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ime:imedps:24-e-17. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Kinken (email available below). General contact details of provider: https://edirc.repec.org/data/imegvjp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.