MIWA KOTARO 三輪宏太郎

… Alternative Names

三輪宏太郎ミワコウタロウ

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Researcher Number	70897727
Other IDs	https://orcid.org/0000-0002-4223-3430
Affiliation (Current)	2026: 九州大学, 経済学研究院, 教授
Affiliation (based on the past Project Information) *help	2026: 九州大学, 経済学研究院, 教授 2023 – 2024: 九州大学, 経済学研究院, 教授 2022: 九州大学, 経済学研究院, 准教授
Review Section/Research Field	Principal Investigator Basic Section 07060:Money and finance-related
Keywords	Principal Investigator ビックデータ / ディスクロージャー / 情報伝播 / 証券価格 / テキスト分析 / ソーシャルメディア / 業績予想 / 過小反応 / アナリスト / 証券アナリスト / 投資家との対話 / 投資家の期待形成

Research Projects
(2 results)
Research Products
(22 results)

企業と投資家間の情報共有の変容と資本市場への影響に関する分析Principal Investigator
- Principal Investigator
  
  三輪宏太郎
- Project Period (FY)
  2026 – 2029
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 07060:Money and finance-related
- Research Institution
  Kyushu University
Information sharing between corporate insiders and investorsPrincipal Investigator
- Principal Investigator
  
  三輪宏太郎
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 07060:Money and finance-related
- Research Institution
  Kyushu University

All 2025 2024 2023 2022

All Journal Article Presentation

[Journal Article] Divergent opinions on social media2023
- Author(s)
  Miwa Kotaro
- Journal Title
  
  International Review of Economics & Finance
  
  Volume: 86 Pages: 182-196
- DOI
  10.1016/j.iref.2023.03.004
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K01554
[Journal Article] How quickly do investors react to analyst reports? Evidence from reports released outside trading hours2023
- Author(s)
  Miwa Kotaro
- Journal Title
  
  Global Finance Journal
  
  Volume: 57 Pages: 100856-100856
- DOI
  10.1016/j.gfj.2023.100856
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K01554
[Journal Article] Earnings expectations and interactive discussions with corporate insiders2023
- Author(s)
  Miwa Kotaro
- Journal Title
  
  Research in International Business and Finance
  
  Volume: 64 Pages: 101895-101895
- DOI
  10.1016/j.ribaf.2023.101895
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K01554
[Journal Article] Informational role of analyst and investor days2023
- Author(s)
  Miwa Kotaro
- Journal Title
  
  Global Finance Journal
  
  Volume: 56 Pages: 100812-100812
- DOI
  10.1016/j.gfj.2023.100812
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Active Verbal Communication with Corporate Insiders2025
- Author(s)
  三輪　宏太郎
- Organizer
  Southwest Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Market Participants' Interests and Earnings Forecast Updates: Evidence from Discussion Topics in Investor Meetings2025
- Author(s)
  三輪　宏太郎
- Organizer
  Southwest Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Analyst preview ban: What were the costs and benefits of private communication with management?2025
- Author(s)
  三輪　宏太郎
- Organizer
  Southwest Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Active Verbal Communication with Corporate Insiders2024
- Author(s)
  三輪　宏太郎
- Organizer
  Sydney Banking and Financial Stability Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Cross-firm Information in Analyst Reports2024
- Author(s)
  Kotaro Miwa
- Organizer
  Southwest Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Extreme Opinons of Financial Analysts2024
- Author(s)
  三輪　宏太郎
- Organizer
  Asian Finance Association Annual Meeing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Extreme Opinons of Financial Analysts2024
- Author(s)
  三輪　宏太郎
- Organizer
  14th Financial Markets and Corporate Governance Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Active Verbal Communication with Corporate Insiders2024
- Author(s)
  三輪　宏太郎
- Organizer
  14th Financial Markets and Corporate Governance Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Extreme Opinons of Financial Analysts2024
- Author(s)
  三輪　宏太郎
- Organizer
  日本ファイナンス学会
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Extreme Opinions of Financial Analysts2024
- Author(s)
  Kotaro Miwa
- Organizer
  Southwest Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Cross-firm Information in Analyst Reports2023
- Author(s)
  Kotaro Miwa
- Organizer
  Sydney Banking and Financial Stability Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Cross-firm Information in Analyst Reports2023
- Author(s)
  Kotaro Miwa
- Organizer
  New Zealand Finance Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Cross-firm Information in Analyst Reports2023
- Author(s)
  Kotaro Miwa
- Organizer
  Asian Finance Association
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Cross-firm Information in Analyst Reports2023
- Author(s)
  三輪　宏太郎
- Organizer
  日本ファイナンス学会
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Earnings Expectation and Interactive Discussion with Corporate Insiders2022
- Author(s)
  Miwa Kotaro
- Organizer
  New Zealand Finance Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Informational Role of Analyst and Investor Days2022
- Author(s)
  Miwa Kotaro
- Organizer
  Financial Management Association Asia/Pacific Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] Informational Role of Analyst and Investor Days2022
- Author(s)
  Miwa Kotaro
- Organizer
  Asian Finance Association Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K01554
[Presentation] How Quickly do Investors React to Analyst Reports? Evidence from Reports Released Outside Trading Hours2022
- Author(s)
  三輪　宏太郎
- Organizer
  日本ファイナンス学会
- Data Source
  KAKENHI-PROJECT-22K01554

MIWA KOTARO 三輪 宏太郎

三輪 宏太郎 ミワ コウタロウ

Research Projects

Research Products

企業と投資家間の情報共有の変容と資本市場への影響に関する分析Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Information sharing between corporate insiders and investorsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Divergent opinions on social media2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] How quickly do investors react to analyst reports? Evidence from reports released outside trading hours2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Earnings expectations and interactive discussions with corporate insiders2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Informational role of analyst and investor days2023

Author(s)

Journal Title

DOI

Data Source

[Presentation] Active Verbal Communication with Corporate Insiders2025

Author(s)

Organizer

Data Source

[Presentation] Market Participants' Interests and Earnings Forecast Updates: Evidence from Discussion Topics in Investor Meetings2025

Author(s)

Organizer

Data Source

[Presentation] Analyst preview ban: What were the costs and benefits of private communication with management?2025

Author(s)

Organizer

Data Source

[Presentation] Active Verbal Communication with Corporate Insiders2024

Author(s)

Organizer

Data Source

[Presentation] Cross-firm Information in Analyst Reports2024

Author(s)

Organizer

Data Source

[Presentation] Extreme Opinons of Financial Analysts2024

Author(s)

Organizer

Data Source

[Presentation] Extreme Opinons of Financial Analysts2024

Author(s)

Organizer

Data Source

[Presentation] Active Verbal Communication with Corporate Insiders2024

Author(s)

Organizer

Data Source

[Presentation] Extreme Opinons of Financial Analysts2024

Author(s)

Organizer

Data Source

[Presentation] Extreme Opinions of Financial Analysts2024

Author(s)

Organizer

Data Source

[Presentation] Cross-firm Information in Analyst Reports2023

Author(s)

Organizer

Data Source

MIWA KOTARO 三輪宏太郎

三輪宏太郎ミワコウタロウ