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Inspecting the expectations formation mechanism under imperfect information: An application to monetary policy

Research Project

Project/Area Number 19K23219
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0107:Economics, business administration, and related fields
Research InstitutionAsia University (2021-2022)
The University of Tokyo (2019-2020)

Principal Investigator

Kato Ryo  亜細亜大学, 経済学部, 教授 (20843692)

Project Period (FY) 2019-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords不確実性 / インフレ期待 / インフレ動学 / 不完全情報 / マクロ経済学
Outline of Research at the Start

本研究は、企業や家計が将来の経済状況(所得やインフレ率等)を予想するメカニズムの特徴を理論・実証の両面から明らかにすることを学術的な目的とし、得られた分析結果を日本における経済政策のより効率的・効果的な運用に役立てることを展望する。
まず、家計や企業が不完全情報のもとで意思決定を行っていることを前提に、どのように情報を更新しているのか現実的なモデル化を目指す。具体的には、インフレ期待や先行きの長期金利、潜在成長率といった要因が不完全にしか織り込まれないもとでの、家計や企業の経済行動の特徴を明らかにする。そのうえで、期待が不完全にしか調整しない経済において、望ましい政策運営に関する示唆を探る。

Outline of Final Research Achievements

This project inspects the macroeconomic dynamics, particularly, inflation dynamics by building structural models in which steady states are subject to imperfect information.
The first achievement was to empirically confirm that inflation persistence increases along with market concentration. To account for the fact, we propose a model in which agents update their beliefs more slowly if they are competing in less concentrated market. Second, we also developed a macro structural model in which trend inflation is uncertain and time-varying. We took the model to the Japanese data to examine when and how trend inflation declined in Japan.

Academic Significance and Societal Importance of the Research Achievements

日本経済の長期にわたるデフレは、日本の政策担当者のみならず世界的にも関心の高い経済事象であるとともに、その原因については、多くの研究があるにもかかわらず完全には解明されていない。
本研究は、デフレが長期化する要因として、インフレ期待が低位で安定してしまうメカニズムを解き明かす一助となる。すなわち、インフレ期待の形成に、①市場構造と②情報構造がともに作用するメカニズムを理論・実証から提示した。加えて、2000年までのデータを用いて、日本でデフレが始まった時期について、トレンド・インフレ率の観点から検証を行った。これらの成果は、デフレのメカニズムについての今後の研究を進める足掛かりとなった。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2019 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Open Access: 4 results,  Peer Reviewed: 2 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Trend Inflation in the Japanese pre-2000s: A Markov-Switching DSGE Estimation2022

    • Author(s)
      Ryo Kato, Junior Maih, Shin-Ichi Nishiyama
    • Journal Title

      Discussion Papers from Graduate School of Economics, Kobe University

      Volume: 2212 Pages: 1-25

    • Related Report
      2022 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Sectoral inflation persistence, market concentration, and imperfect common knowledge2021

    • Author(s)
      Ryo Kato, Tatsushi Okuda, Takayuki Tsuruga
    • Journal Title

      Journal of Economic Behavior and Organization

      Volume: 192 Pages: 500-517

    • DOI

      10.1016/j.jebo.2021.10.026

    • NAID

      40022347598

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pecuniary externalities, bank overleverage, and macroeconomic fragility2021

    • Author(s)
      Kato Ryo、Tsuruga Takayuki
    • Journal Title

      International Journal of Economic Theory

      Volume: - Issue: 4 Pages: 1-14

    • DOI

      10.1111/ijet.12325

    • NAID

      40022347471

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sectoral inflation persistence, market concentration and imperfect common knowledge2021

    • Author(s)
      Ryo Kato, Tatsushi Okuda and Takayuki Tsuruga
    • Journal Title

      ESRI Discussion Paper Series

      Volume: 359 Pages: 1-35

    • NAID

      40022347598

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] Trend Inflation in the Japanese Pre-2000s: A Markov-Switching DSGE Estimation2021

    • Author(s)
      Ryo Kato
    • Organizer
      The 96th Annual Conference - Western Economic Association Internatonal
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Market Concentration and Sectoral Inflation under Imperfect Common Knowledge2019

    • Author(s)
      Ryo Kato
    • Organizer
      Asian Meeting of Econometric Society, Xiamen University, China
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] Social Science Research Network (SSRN)

    • URL

      https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3562060

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-09-03   Modified: 2024-01-30  

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