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Risk-taking of individual investors in FX margin trading

Research Project

Project/Area Number 19K01754
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 InstitutionKobe University

Principal Investigator

Iwatsubo Kentaro  神戸大学, 経済学研究科, 教授 (90372466)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsFX証拠金取引 / 行動バイアス / 自信過剰 / 投資戦略 / 認知スキル / 非認知スキル / ハウスマネー効果 / プロスペクト理論 / 取引データ / クラスター分析 / ランダムフォレスト / 保有期間 / 収益率 / 心の理論 / 時間割引 / 不確実性回避 / 個人投資家 / リスクテイク / 心理バイアス / 金融リタラシー
Outline of Research at the Start

本研究の第1の目的は、個人投資家を属性や投資スタイルで分類し、収益率を比較することである。それによって、性別や年齢による投資スタイルの特徴を認識し、どの投資スタイルが優れているかを理解できる。第2の目的は、リスクテイクに影響している心理バイアスである気質効果とハウスマネー効果を分析することである。第3の目的は、金融リテラシーと投資経験のどちらが収益率向上に寄与するかを分析することである。

Outline of Final Research Achievements

From a survey of individual investors in FX margin trading, we analyzed what factors most influence investment performance. The results revealed that behavioral biases explain most of the differences in performance among investors. Loss aversion, ambiguity aversion, time discounting, theory of mind (beauty contest), as well as overconfidence in particular play an important role. Although some investment strategies and trading behaviors also affect performance, the variation explained by these factors is quite small. These results indicate that recognizing and correcting one's behavioral biases is most effective in improving investment performance.

Academic Significance and Societal Importance of the Research Achievements

「貯蓄から投資へ」というスローガンの下、政府は証券投資による資産運用の必要性を呼びかけているが、証券投資には損失を被るリスクがあり、必ずしも多くの投資が証券投資で資産を増やせてはいない。その原因を外国為替証拠金取引の個人投資家の行動を通じて明らかにした。投資パフォーマンスの決定要因として、投資先や売買タイミングなど投資戦略に関心が集まる傾向があるが、行動バイアスによって損失が生じていることは株式を中心として先行研究で明らかになっている。しかし、どのような行動バイアスが投資戦略と比べて悪影響を与えているか、包括的な研究は存在していない。本研究はその点において学術的、社会的意義がある。

Report

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

    (24 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] トリール大学(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Does Firm-Level Productivity Predict Stock Returns?2022

    • Author(s)
      Takashi Hiroki, Kentaro Iwatsubo, and Clinton Watkins
    • Journal Title

      Pacific-Basin Finance Journal

      Volume: 101710 Pages: 101710-101710

    • DOI

      10.1016/j.pacfin.2022.101710

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Changing Role of Foreign Investors in Tokyo Stock Price Formation2021

    • Author(s)
      Kentaro Iwatsubo and Clinton Watkins
    • Journal Title

      Pacific-Basin Finance Journal

      Volume: 101548 Pages: 101548-101548

    • DOI

      10.1016/j.pacfin.2021.101548

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 日本企業の全要素生産性(TFP)の推移2021

    • Author(s)
      岩壷健太郎、広木隆
    • Journal Title

      国民経済雑誌

      Volume: 223 Pages: 49-62

    • Related Report
      2020 Research-status Report
  • [Journal Article] 日本の上場企業の生産性と株価2020

    • Author(s)
      岩壷健太郎、広木隆
    • Journal Title

      証券アナリストジャーナル

      Volume: 58 Pages: 78-87

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Who influences the fundamental value of commodity futures in Japan?2020

    • Author(s)
      Kentaro Iwatsubo and Clinton Watkins
    • Journal Title

      International Review of Financial Analysis

      Volume: 67 Pages: 1-15

    • DOI

      10.1016/j.irfa.2019.101404

    • NAID

      120006784502

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crude Oil Prices, Capital Flows, and Emerging Economies2019

    • Author(s)
      Kentaro Iwatsubo and Satoru Ogasawara
    • Journal Title

      Public Policy Review

      Volume: 15 (1) Pages: 35-68

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Presentation] Does Firm-Level Productivity Predict Stock Returns?2021

    • Author(s)
      岩壷健太郎
    • Organizer
      日本経済学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Does Firm-Level Productivity Predict Stock Returns?2021

    • Author(s)
      岩壷健太郎
    • Organizer
      日本金融学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Does Firm-Level Productivity Predict Stock Returns?2021

    • Author(s)
      岩壷健太郎
    • Organizer
      World Finance Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Does Firm-Level Productivity Predict Stock Returns?2021

    • Author(s)
      岩壷健太郎
    • Organizer
      Australasian Banking and Finance Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Role of Cognitive and Non-cognitive Skills and Behavioral Biases in the FX Margin Trading: Evidence from Survey and Transaction Data2021

    • Author(s)
      岩壷健太郎
    • Organizer
      日本金融学会 関西部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The Role of Cognitive and Non-cognitive Skills and Behavioral Biases in the FX Margin Trading: Evidence from Survey and Transaction Data2021

    • Author(s)
      岩壷健太郎
    • Organizer
      ファイナンス学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The Role of Cognitive and Non-cognitive Skills and Behavioral Biases in the FX Margin Trading: Evidence from Survey and Transaction Data2021

    • Author(s)
      岩壷健太郎
    • Organizer
      行動経済学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Dealership versus Continuous Auction: Evidence from the JASDAQ Market2021

    • Author(s)
      岩壷健太郎
    • Organizer
      日本金融学会 関西部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Dealership versus Continuous Auction: Evidence from the JASDAQ Market2021

    • Author(s)
      岩壷健太郎
    • Organizer
      JFA-PBFJ Special Issue Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Changing Role of Foreign Investors in Tokyo Stock Price Formation2020

    • Author(s)
      岩壷健太郎
    • Organizer
      日本経済学会
    • Related Report
      2020 Research-status Report
  • [Presentation] The Changing Role of Foreign Investors in Tokyo Stock Price Formation2020

    • Author(s)
      岩壷健太郎
    • Organizer
      日本金融学会
    • Related Report
      2020 Research-status Report
  • [Presentation] “The Key to Succeed in FX Margin Trading: The Role of Investment Strategy and Behavioral Biases”2020

    • Author(s)
      岩壷健太郎
    • Organizer
      日本ファイナンス学会
    • Related Report
      2020 Research-status Report
  • [Presentation] “The Key to Succeed in FX Margin Trading: The Role of Investment Strategy and Behavioral Biases”2020

    • Author(s)
      岩壷健太郎
    • Organizer
      経営財務研究学会
    • Related Report
      2020 Research-status Report
  • [Presentation] “The Key to Succeed in FX Margin Trading: The Role of Investment Strategy and Behavioral Biases”2020

    • Author(s)
      岩壷健太郎
    • Organizer
      日本経済学会
    • Related Report
      2020 Research-status Report
  • [Presentation] “The Key to Succeed in FX Margin Trading: The Role of Investment Strategy and Behavioral Biases”2020

    • Author(s)
      岩壷健太郎
    • Organizer
      行動経済学会
    • Related Report
      2020 Research-status Report
  • [Presentation] The Changing Role of Foreign Investors in Tokyo Stock Price Formation2019

    • Author(s)
      岩壷健太郎
    • Organizer
      3rd RESSU (滋賀大学)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Who Is Successful in Foreign Exchange Margin Trading? New Survey Evidence from Japan2019

    • Author(s)
      岩壷健太郎
    • Organizer
      ファイナンス学会(大阪大学)
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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