Sangeun Ha
Assistant Professor of Finance at Copenhagen Business School
Research Fellow of Danish Finance Institute
Email: sha.fi@cbs.dk
Sangeun Ha
Assistant Professor of Finance at Copenhagen Business School
Research Fellow of Danish Finance Institute
Email: sha.fi@cbs.dk
Motivating collusion (with Fangyuan Ma and Alminas Zaldokas) [link]
Journal of Financial Economics, 2024
CRESSE – CPI and the CCIA Young Researcher Award
We examine how executive compensation can be designed to facilitate product market collusion. We look at the 2013 decision to close several regional offices of the U.S. Department of Justice, which lowered antitrust enforcement for firms located near these closed offices. We argue this made collusion more appealing to shareholders, and find that these firms increased the sensitivity of executive pay to local rivals’ performance, consistent with rewarding the managers for colluding with them. The affected CEOs were also granted longer vesting periods, which provides long-term incentives that could foster collusive arrangements.
Presentations: Drexel Corporate Governance Conference 2023, 32nd CFEA 2022, AEA 2021, Barcelona GSE Summer Forum (Applied Industrial Organization) 2021, CUHK Greater Bay Conference 2021, MFA 2021, IIOC 2021, New Zealand Finance Meeting 2021, FOMC 2020, NYU Law/American Bar Association Next Generation Antitrust Scholars’ Conference 2020, Finance in the Cloud IV, Asia-Pacific Corporate Finance Online Workshop, Corporate Finance Day 2020 (Liege), Paris Corporate Finance Webinar, University of Maryland, University of Pittsburgh, Columbia Business School, HKUST, Fordham University, NUS, University of Technology Sydney, and University of Sydney.
Does Foreign Institutional Capital Promote Green Growth for Emerging Market Firms? (with Sophia Chiyoung Cheong, Jaewon Choi, Ji Yeol Jimmy Oh)[Draft]
Best Paper Award at Cornell ESG Investing Research Conference 2023
We examine whether foreign institutional capital promotes green growth in emerging-market firms, using firmlevel and China A-shares’ market-level inclusions in the MSCI Index as shocks to foreign capital. While foreign capital boosts output in emerging-market firms, emissions rise disproportionately, leading to substantial increases in emissions intensity. In contrast, emissions intensities of developed-market firms tend not to increase with foreign capital. These increases in emissions intensity are concentrated in emerging markets with weaker environmental regulations and firms held by funds driven more by financial incentives, consistent with financial concerns dominating environmental concerns in emerging market investors. Overall, results suggest that environmental considerations are assigned lower priority when emerging-market firms utilize foreign capital for growth.
Seminar presentations: Federal Reserve Board (Supervision and Regulation, Policy Effectiveness Assessment Section), Australian National University*, Copenhagen Business School, EWHA University*, ESSCA School of Business*, Korea Money and Finance Association*, Rutgers University*, Tsinghua University*, University of Illinois Urbana-Champaign*, University of New South Wales*, Victoria University of Wellington*, Yonsei University*
Conferences: AFFI 2023, Asia-Pacific Association of Derivatives 2023*, CEBRA International Finance and Macroeconomics Meeting 2024*, CICF 2024*, Conference on CSR 2023*, Cornell ESG Investing Research Conference 2023, Day Ahead conference by FRB SF, EEA 2023, ECB Emerging Market Group workshop 2023, FMA 2023*, FMA Applied Finance 2024, Global AI Finance Research Conference 2022, ISB Summer Research Conference 2023*, KFA-TFA Joint Conference 2023*, SFS Cavalcade 2023*, Symposium on ESG Research at NCCU*
Outsourcing Workplace Safety [Draft]
I study if firms deliberately sacrifice workplace safety for profits by using contract workers, for whom they are not legally liable. I exploit a regression discontinuity design around the amendment to the Occupational Health and Safety Act in Korea, 2017, which expanded the legal accountability of firms to cover contract workers. The number of contract workers decreased by 18.1% in affected establishments compared to unaffected establishments. This change was not compensated by direct hiring, causing overall employment to fall by 1.3%. Working hours and wage costs paid to directly hired employees increased to make up for the resulting losses in work hours from the contract workers. Workplace safety improved at affected establishments at the cost of higher safety investment. Profitability dropped in affected firms, and those firms reacted by shrinking investments. The results are consistent with firms strategically outsourcing risky jobs to contract workers to offload their duties on workplace safety.
Presentations: AFFECT-AFA 2024, Amsterdam Business School, BI Norwegian Business School, Boston University, CEFER, CICF 2022, Conference on CSR, the Economy and Financial Markets 2022, Copenhagen Business School, EALE 2024, ESCP Business School, FMA 2021, IESE Business School, Ivey Business School, LERA Meeting at AEA 2023, Manchester Business School, MFA 2023, Nordic Initiative for Corporate Economics, San Diego State University, The Economics of Working Environment conference, University of Luxembourg, University of New South Wales, Venice Finance Workshop 2023, Wilfrid Laurier University
Agency Problems in Corporate Foundations [Draft][New version updated!]
We study how corporate foundations use capital for the benefit of controlling shareholders at the expense of the value of minority shareholders. Using the 2013 Fair Trade Act amendment in Korea, restricting ownership concentration by controlling shareholders in large business groups (\textit{chaebol}s), we conduct difference-in-differences tests and find that corporate foundations of exposed \textit{chaebol}s increased ownership in member firms by 5\%, preserving ownership of controlling shareholders. Market reacts negatively, mainly in member firms with past donations, and the member firms’ value of cash donations decreases. Exposed corporate foundations reduced philanthropic expenses. Results suggest that resources in corporate foundations are extracted to benefit controlling shareholders, undermining donation value for minority shareholders.
Presentation: Erasmus Corporate Governance Conference 2025, CEPR Workshop on Behavioral Perspectives on Family Firms 2024, AFBC 2019 ... More
Conflict Penalty in Workplaces (with Iris Wang)[New draft by request]
We study how the geopolitical backgrounds of immigrant firm owners shape labor market outcomes for their employees. Using administrative data on Canadian firms from 2001 to 2017, we find that immigrant workers from countries with a history of armed conflict with the owner's country of origin earn significantly lower wages compared to similar workers from non-conflicting countries. The effect is stronger when armed conflicts are more recent or deadly, and when owners have stronger control over pay decisions. Conflict-exposed workers are more likely to leave the firm, particularly in higher-paying positions. These findings highlight how geopolitical tensions can shape workplace dynamics and economic interactions among immigrants in host-country labor markets.
Presentation: EEA* (2025, scheduled), UBC Summer conference* (2025), AOM (2025), Midwest Political Science Association* (2025)
Anticipated Entry and Toxic Releases (with Manpreet Singh)
Presentation: Seoul National University
The Talent Gap in Family Firms by Bennedsen, Tsoutsoura, and Wolfenzon at Paris-Dauphine Family Business Conference 2025 (slide)
Bank Specialization in Lending to New Firms by Bonfim, De Haas, Matyunina, and Ongena at FIRS 2025 (slide)
Directing the Labor Market by Begley, Haslag, and Weagley at EFA 2024 (slide)
Real Effects of Personal Liability: Evidence from Industrial Pollution by Bucourt at ASU 2025 (slide)
Dirty Air and Green Investments: The impact of pollution information on portfolio allocations by Fisman, Ghosh, Sarkar, and Zhang at MFA 2025 (slide)
Real Effects of Personal Liability: Evidence from Industrial Pollution by Bucourt at ASU Sonoran 2025 (slide)