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Relationship between bank managers' overconfidence and regulations

Research Project

Project/Area Number 21K01558
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07060:Money and finance-related
Research InstitutionNagoya University

Principal Investigator

Shimizu Katsutoshi  名古屋大学, 経済学研究科, 教授 (80292746)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords銀行 / 行動経済学 / 流動性 / 規制 / 金融危機 / バーゼルIII規制 / 自信過剰 / 行動ファイナンス
Outline of Research at the Start

本研究は、銀行のコーポレート・ガバナンスの観点から、銀行の資産ポートフォリオの特徴を解明する。銀行の経営者の様々な特徴が銀行のコーポレート・ガバナンスに影響を与えている。その中でも、本研究は銀行経営者の自信過剰を表す指標に着目する。リーマン・ショックなどの金融危機時に、預金が流出したり、流動性の枯渇が生じたりして、銀行の経営悪化が生じ、金融危機がさらに悪化したと言われる。これを教訓とし、近年、銀行に流動性比率の最低水準を定める規制が導入された。本研究では、銀行経営者の自信過剰度が銀行の流動資産比率に与えた影響を実証的手法によって明らかにし、銀行規制に関する政策的インプリケーションをえる。

Outline of Final Research Achievements

The purpose of this study is to examine theoretically and empirically the impact of bank managers' overconfidence on banks' asset portfolio composition. With the introduction of liquidity coverage ratio and net stable funding ratio regulations under Basel III, the importance of banks holding high-quality liquid assets has been emphasized. Using U.S. bank data, this study finds that banks managed by more overconfident managers have lower liquidity ratios and higher funding costs, and that overconfidence indicator positively affects the probability of liquidity shortfalls during financial crises. The results have important policy implications for the regulation of the net stable funding ratio and the liquidity coverage ratio.

Academic Significance and Societal Importance of the Research Achievements

バブルや金融危機は,一種の熱狂や非合理的な経済取引の結果として生じるのではないかという考え方がある。本研究では,自信に満ち溢れている銀行経営者は,通常の銀行経営者よりもアグレッシブな経営方針をたてて銀行を経営しているのではないかということを考えたものである。銀行は一定の流動性(現金や預金など)を保有しているが,これを多く保有しても銀行の収益にはつながらないものの,経営の安定性を高めることができる。本研究では,自信過剰な経営者がいる銀行は流動性を少なくもち,リスクの高い経営をする傾向があることを見出した。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] University of Nottingham(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Nottingham(英国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of Nottingham(英国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] The determinants of negative net leverage policy: New evidence from Japan.2021

    • Author(s)
      Ly Kim Cuong, Katsutoshi Shimizu, Weihan Cui
    • Journal Title

      Economic Modelling

      Volume: 97 Pages: 449-460

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Did Basel regulation cause a significant procyclicality?2021

    • Author(s)
      Kim Cuong Ly, Katsutoshi Shimizu
    • Journal Title

      Journal of International Financial Markets, Institutions & Money

      Volume: 73 Pages: 101365-101365

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Working capital management and bank mergers2023

    • Author(s)
      Baoqi Na, Katsutoshi Shimizu
    • Organizer
      World Finance Conference.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Working capital management and bank mergers.2022

    • Author(s)
      Baoqi Na
    • Organizer
      JFA-PBFJ Special Issue Conference 2022年3月14日. Kyushu University.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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