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Risk and return relationships in the financial markets

Research Project

Project/Area Number 20K22092
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0107:Economics, business administration, and related fields
Research InstitutionOkayama University

Principal Investigator

Sakemoto Ryuta  岡山大学, 社会文化科学学域, 准教授 (50880275)

Project Period (FY) 2020-09-11 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords通貨ポートフォリオ / ファクターモデル / バリュー / モメンタム / キャリー / コモディティ先物 / ボラティリティ / 投資戦略 / コモディティ価格 / 行動ファイナンス / FX volatility / currency portfolio / carry / momentum / flight to quality / ICAPM / リスク / 投資期間 / ウェーブレット / キャリートレード / バリューポートフォリオ / 期待リターン / 為替市場
Outline of Research at the Start

ファイナンス理論の根幹にある法則は、リスクとリターンのトレードオフである。これは高い期待リターンを達成するためには、投資家が取るリスクの量を増やす必要があるというものである。本研究では実際の金融市場においては様々な投資期間の投資家がいることを反映したリスク・リターンの分析を行う。加えて株式市場に比べてリスク・リターンの関係についての研究が進んでいない為替市場での分析を行う。

Outline of Final Research Achievements

This study investigated risk-return relationships in the financial markets. In the first project, I focused on the stock market and revealed that risk was negatively associated with expected returns at a shorter frequency but was positively linked to them at a monthly frequency. The negative relationship reflected investors' overreaction. In the second project, I focused on the currency market and discovered that the sign of the risk-return relationship varied over time. This result was observed for the currency momentum and currency value portfolios. The sign of the risk-return relationship for the value portfolio was driven by flight to quality.

Academic Significance and Societal Importance of the Research Achievements

市場が安定している時には高金利通貨は理論価格以上に増価をし、通貨キャリーポートフォリオが正の収益率を持つことは広く知られている。更に市場混乱時に通貨キャリーポートフォリオが大きな損失をもたらすことも先行研究で示されている。しかし、通貨バリューポートフォリオとリスクについはまだ十分な研究がされていない分野であり、今回の発見は通貨ポートフォリオのリスク管理の高度化に貢献する。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 6 results) Presentation (3 results) (of which Int'l Joint Research: 2 results) Remarks (3 results)

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

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Heriot-Watt University(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ヘリオット・ワット大学/エディンバラ・ビジネススクール(英国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Commodity Sectors and Factor Investment Strategies2024

    • Author(s)
      Nakagawa Kei、Sakemoto Ryuta
    • Journal Title

      SSRN Electronic Journal

      Volume: 4622974 Pages: 1-59

    • DOI

      10.2139/ssrn.4622974

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] Commodity Correlation Risk2024

    • Author(s)
      Byrne Joseph、Sakemoto Ryuta
    • Journal Title

      SSRN Electronic Journal

      Volume: 4265924 Pages: 1-52

    • DOI

      10.2139/ssrn.4265924

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] The long-run risk premium in the intertemporal CAPM: International evidence2023

    • Author(s)
      Sakemoto Ryuta
    • Journal Title

      Journal of International Financial Markets, Institutions and Money

      Volume: 89 Pages: 101854-101854

    • DOI

      10.1016/j.intfin.2023.101854

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Risk Premium Decomposition and the Output Gap2023

    • Author(s)
      Sakemoto Ryuta
    • Journal Title

      SSRN Electronic Journal

      Volume: 4267778 Pages: 1-111

    • DOI

      10.2139/ssrn.4267778

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] Commodity momentum decomposition2022

    • Author(s)
      Iwanaga Yasuhiro、Sakemoto Ryuta
    • Journal Title

      Journal of Futures Markets

      Volume: 43 Issue: 2 Pages: 198-216

    • DOI

      10.1002/fut.22382

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamic allocations for currency investment strategies2022

    • Author(s)
      Nakagawa Kei、Sakemoto Ryuta
    • Journal Title

      The European Journal of Finance

      Volume: - Issue: 10 Pages: 1-22

    • DOI

      10.1080/1351847x.2022.2100715

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The conditional volatility premium on currency portfolios2021

    • Author(s)
      Byrne Joseph P.、Sakemoto Ryuta
    • Journal Title

      Journal of International Financial Markets, Institutions and Money

      Volume: 74 Pages: 101415-101415

    • DOI

      10.1016/j.intfin.2021.101415

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Risk-Return Trade-Off on the Currency Portfolios2021

    • Author(s)
      Byrne Joseph、Sakemoto Ryuta
    • Journal Title

      SSRN Electronic Journal

      Volume: 3231564 Pages: 1-67

    • DOI

      10.2139/ssrn.3231564

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Economic Evaluation of Cryptocurrency Investment2021

    • Author(s)
      Sakemoto Ryuta
    • Journal Title

      SSRN Electronic Journal

      Volume: 3694404 Pages: 1-64

    • DOI

      10.2139/ssrn.3694404

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Open Access
  • [Journal Article] Multi‐scale inter‐temporal capital asset pricing model2020

    • Author(s)
      Sakemoto Ryuta
    • Journal Title

      International Journal of Finance & Economics

      Volume: forthcoming Issue: 4 Pages: 4298-4317

    • DOI

      10.1002/ijfe.2372

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] The Long-run Risk Premium in the ICAPM: International Evidence2022

    • Author(s)
      Ryuta Sakemoto
    • Organizer
      2022 Asian Finance Association Annual Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Economic evaluation of cryptocurrency investment2022

    • Author(s)
      Ryuta Sakemoto
    • Organizer
      Annual Event of Finance Research Letters
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Long-run Risk Premium in the ICAPM: International Evidence2021

    • Author(s)
      Ryuta Sakemoto
    • Organizer
      日本ファイナンス学会第3回秋季研究大会
    • Related Report
      2021 Research-status Report
  • [Remarks] 研究成果1

    • URL

      https://www.researchgate.net/publication/347430086_Multi-scale_inter-temporal_capital_asset_pricing_model

    • Related Report
      2020 Research-status Report
  • [Remarks] 研究成果2

    • URL

      https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3694404

    • Related Report
      2020 Research-status Report
  • [Remarks] 研究成果3

    • URL

      https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3231564

    • Related Report
      2020 Research-status Report

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Published: 2020-09-29   Modified: 2025-01-30  

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