Personal profile
Curriculum
Gonul Colak is a Professor of Finance at Hanken School of Economics. Recently he was a visiting scholar at Stern School of Business in New York University and at Turkish Central Bank's Istanbul School of Central Banking in Turkey. Previously he held academic positions at Florida State University and Wichita State University. He has publications in high-quality journals such as Review of Financial Studies, Journal of Financial Economics, Journal of Financial and Quantitative Analysis, Review of Accounting Studies, Journal of Financial Intermediation, and Journal of Corporate Finance. His academic work focuses on political uncertainty, corporate finance, and financial econometrics. His research interests cover variety of topics such as equity issuance, investor relations, corporate restructurings, financial intermediation, executive compensation, S&P 500 Index additions, capital structure, and cash holdings. According to Scopus his work has been cited more than 950 times.
Research and teaching information
Personal Webpage: www.gonulcolak.org
The link to his research papers at SSRN: http://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=329865
ResearchGate Link: www.researchgate.net/profile/Gonul_Colak
Education information
Doctor of Science (Economics and Business Administration), Business Economics, University of Iowa, United States, 2004Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 4 Quality Education
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SDG 8 Decent Work and Economic Growth
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SDG 13 Climate Action
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Collaborations and top research areas from the last five years
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Corporate agility and monetary policy transmission
Colak, G. & Mai, S. T., 03.02.2026, In: Journal of Corporate Finance. 98, 102973.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
COVID-19 and Disruptions of Trade Credit Along Supply Chains
Gustafsson, J. & Colak, G., 08.03.2026, In: Financial Management.Research output: Contribution to journal › Article › Scientific › peer-review
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Idiosyncratic Political Risk and Bad News Hoarding
Colak, G., Loukopoulos, G. & Loukopoulos, P., 04.11.2025, In: Financial Review.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Import competition and stock price crash risk
Afzali, M., Colak, G. & Francis, K., 08.04.2025, In: Journal of Financial Research.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus) -
Predicting IPO first-day returns: Evidence from machine learning analyses*
Colak, G., Fu, M. & Hasan, I., 10.06.2025, In: Journal of Banking and Finance. 178, 107500.Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus)
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GACR Grant No: 24-10008S: Asset pricing, internet data, machine learning with natural language processing in the era of sustainable and decentralized finance with uncertainty
Colak, G. (CoI), Janda, K. (Project manager, academic), Witzany, J. (Project participant), Ficura, M. (Project participant) & Tran, Q. V. (Project participant)
01.01.2024 → 31.12.2026
Project: Externally funded project
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Insider Trading around Environmental, Social, and Governance Scandals: Evidence from Corporate Litigations
Colak, G. (Project manager, academic), Afzali, M. (PI) & Meyer, N. (Project participant)
01.03.2022 → 31.10.2025
Project: Externally funded project
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Modeling the Structure and Dynamics of Energy, Commodity and Alternative Asset Prices
Witzany, J. (Project manager, organisational), Colak, G. (Project manager, academic), Janda, K. (Project manager, academic) & Ficura, M. (Project participant)
01.01.2022 → 31.12.2024
Project: Externally funded project
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Credit Market Sentiment and the Debt Trap
Lin, J.-C. (Project manager, academic) & Colak, G. (Project participant)
Research Grants Council (RGC) of Hong Kong
03.07.2019 → 03.07.2021
Project: Externally funded project
Activities
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2025 FMA Meetings in Vancouver
Colak, G. (Member of organizing committee)
22.10.2025 → 25.10.2025Activity: Participating in or organising an event › Organisation of / participation in conferences, workshops, courses, seminars
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2024 FMA Meetings in Dallas
Colak, G. (Speaker: Presenter)
16.10.2024 → 19.10.2024Activity: Participating in or organising an event › Organisation of / participation in conferences, workshops, courses, seminars
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2023 Souther Finance Association Conference in Puerto Rico
Colak, G. (Member of organizing committee)
15.11.2023 → 18.11.2023Activity: Participating in or organising an event › Organisation of / participation in conferences, workshops, courses, seminars
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Journal of Financial Intermediation (Journal)
Colak, G. (Referee)
01.11.2023 → 20.12.2023Activity: Publication peer-review and editorial work › Peer review / evaluation of conference papers
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Journal of Banking & Finance (Journal)
Colak, G. (Referee)
01.11.2023 → 15.12.2023Activity: Publication peer-review and editorial work › Peer review / evaluation of conference papers
Prizes
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Beliefs and Learning in Initial Public Offerings and Bank-runs
Colak, G. (Recipient), 01.01.2009
Prize: Prizes and awards
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Best Paper Award at 2018 Young Finance Scholars Conference
Colak, G. (Recipient), Gounopoulos , D. (Recipient), Loukopoulos , P. (Recipient) & Loukopoulos , G. (Recipient), 08.06.2018
Prize: Prizes and awards
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Climate Finance Award at the 7th Liechtenstein Workshop of Sustainable Finance
Afzali, M. (Recipient), Colak, G. (Recipient) & Vähämaa, S. (Recipient), 21.09.2023
Prize: Prizes and awards
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International Workshop on ESG-Values (IWESGV)
Afzali, M. (Recipient), Colak, G. (Recipient) & Vähämaa, S. (Recipient), 09.06.2023
Prize: Prizes and awards
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Playing the Waiting Game in the IPO Markets
Colak, G. (Recipient), 15.05.2009
Prize: Prizes and awards
Press/Media
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The Challenges of Succeeding a Long-Tenured CEO
09.03.2023
1 Media contribution
Press/Media: Press / Media
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Media Coverage of a Conference and Paper Discussion in Front of a Nobel Laureate
03.12.2020
1 item of Media coverage
Press/Media: Press / Media
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Election ambiguity may be beneficial in the short term, but in the long term it's corrosive
05.11.2020
1 Media contribution
Press/Media: Press / Media
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Elections and IPOs Don't Mix
Colak, G., Durnev, A. & Qian, Y.
10.10.2016
1 item of Media coverage
Press/Media: Press / Media