03 / Research

Research Portfolio

I study how businesses adapt when the environment shifts — activist pressure, new entrants, technological discontinuities, regulatory change. My research is phenomenon-driven: I start with a puzzle in the real world and build theory from it, rather than fitting phenomena to theory. I work with big data and a range of methods — econometric analysis, experiment, computer simulation, and LLM-based analysis.

A

Publications

P1

Dare to Fight? How Activist Hedge Funds' Hostile Tactics Influence Target Firm Resistance

Koo, H., Wiersema, M., Park, K. F.
Journal of Management · 2026 · 52(2), 767–800

When activist hedge funds come in hot, target firms push back harder — not less — because hostility threatens management's sense of control and triggers ego and anxiety.

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Hedge fund activism has become an integral part of publicly traded firms, and our paper adopts a behavioral lens to examine how the hostility of tactics employed by activist hedge funds may influence the response of target firms. Drawing on cognitive mechanisms and insights from interviews with investment professionals, we propose that activists’ use of hostile tactics may paradoxically trigger greater resistance from target firms. Specifically, we argue that management and the board may seek greater desire for control, and experience ego threat and heightened anxiety in the face of hostility, which increases target firm resistance. Using a sample of 731 activist hedge fund campaigns from 2002 to 2015, we find that target firms are more likely to resist when the activist hedge fund uses more hostile tactics. Further, our findings indicate that resistance towards hostile tactics increases when activist demands challenge the position of management or the board, but is mitigated by a firm’s prior activism experience or boards with more directors that have experienced hostile campaigns.
P2

Homing and platform responses to entry: Historical evidence from the U.S. newspaper industry

Park, K. F., Seamans, R., Zhu, F.
Strategic Management Journal · 2021 · 42(4), 684–709

Platforms fight harder against new entrants when their customers single-home — U.S. newspapers with more single-homing readers cut prices, circulation, and ad rates more steeply after TV arrived.

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Research summary. We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically test it, leveraging a historical setting: TV station entry into local U.S. newspaper markets from 1945 to 1963. A notable feature of this setting is a quasi-natural experiment: the staggered geographic and temporal rollout of TV stations that was temporarily halted during the Korean War. We find that platform firms indeed take their customers’ homing tendencies into account in their responses to competition: after a TV station enters the newspaper market, newspaper firms with more single-homing consumers had lower subscription prices, circulations, and advertising rates.

Managerial summary. The theoretical and empirical results in our paper suggest that platform firms operating in multi-sided market settings need to consider their customers’ single-homing and multi-homing tendencies. Heterogeneity in these tendencies is an important demand-side factor to consider when formulating responses to a competitor’s entry.

P3

Incumbent Adaptation to Technological Change: The Past, Present, and Future of Research on Heterogeneous Incumbent Response

Eggers, J. P., Park, K. F.
Academy of Management Annals · 2018 · 12(1), 357–389

Whether incumbents survive technological change depends on the fit between the specific nature of the change and the firm’s existing capabilities, knowledge, position, and cognition.

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Schumpeter famously popularized “creative destruction” as the process whereby new entrants replaced existing firms. In most cases, however, some incumbent firms survive and even thrive across technological discontinuities. Moving beyond incumbent-entrant dynamics, organizations and innovation research has begun to explore incumbent heterogeneity in response to technological change—why some incumbents do well and adapt, whereas others struggle. As a phenomenon-driven research area, scholars with different theoretical perspectives have brought their own lenses to bear, but these perspectives have evolved independently. The result is a research stream with a scattered collection of detailed, within-industry perspectives on the phenomenon without a clear ability to link different mechanisms or articulate boundary conditions. This article brings these relevant literatures together to paint a more holistic picture of incumbent adaptation to technological change. To improve generalizability and begin building a more general, cross-industry theory, we emphasize recognizing specific nuances of different technological changes and how they fit with the existing capabilities, knowledge, position, and cognition of incumbent firms to understand which incumbents are swept away in the wave of creative destruction and which may survive.
P4

Risk-Taking

Park, K. F., Shapira, Z.
The Palgrave Encyclopedia of Strategic Management · 2018 · 1488–1493

Managerial risk-taking is shaped by two reference points — aspiration and survival — and by how performance feedback and executive traits tilt attention between them.

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Risk taking is the willingness to accept the level of risk associated with a certain decision. In other words, it refers to making decision that entails risk. In this article, we focus on managerial risk-taking. We discuss the variable risk preference model in depth, summarize the effect of performance feedback on risk-taking, and highlight some of the strategy research on risk-taking that takes the upper echelon perspective of organizations. The variable risk preference model assumes that managers have two reference points in making risky decisions – aspiration point and survival point – and which reference point they pay attention to affects their risk-taking behavior. Performance feedback has an influence on risk-taking that often makes decision-makers take a more longitudinal perspective and change their risk attitudes. Some strategy research on managerial risk-taking that adopts the upper echelon perspective examines the linkages between trait and risk-taking behavior and between incentive structure and risk-taking.
P5

Risk and Uncertainty

Park, K. F., Shapira, Z.
The Palgrave Encyclopedia of Strategic Management · 2017 · 1–7

Research on decision-making under risk (known probabilities) and uncertainty (unknown) splits into normative and descriptive streams — with descriptive work repeatedly exposing the limits of normative models.

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Risk is the situation under which the decision outcomes and their probabilities of occurrences are known to the decision-maker, and uncertainty is the situation under which such information is not available to the decision-maker. Research on decision-making under risk and uncertainty has two broad streams: normative and descriptive. Normative research models how decision should be made under risk and uncertainty, whereas descriptive research studies how decisions under risk and uncertainty are actually made. Descriptive studies have exposed weaknesses of some normative models in describing people’s judgment and decision-making and have compelled the creation of more intricate models that better reflect people’s decision under risk and uncertainty.
P6

How Do Decision Stakes Affect Omission Bias?

Park, K. F., Boyle, E., Shapira, Z.
Academy of Management Best Paper Proceedings · 2017

Omission bias — preferring harms of inaction over equal harms of action — strengthens as stakes rise, evidenced by lab experiments and MLB batters’ swinging choices.

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People prefer harms caused by omission to equal or lesser harms caused by action, a tendency known as omission bias. Several studies, however, have challenged the existence of this bias, and some even found evidence of the opposite bias (i.e., action bias). In this paper, we study when omission bias is more likely to manifest than action bias. Building on prospect theory, we hypothesize that people will show more omission bias in high stakes situations. By conducting two laboratory experiments and through analyzing the Major League Baseball (MLB) batters’ swinging behaviors, we find support for this hypothesis in three different high stakes contexts (monetary, environmental, and rivalry), and we conclude that omission bias is more likely to occur in high stakes decision-making situations. We also test whether this relationship is mediated by affect–anticipated regret and happiness–and find that only anticipated happiness partially mediates the effect of stakes on omission bias.
B

Working Papers

W1

Restoring Balance: The Effect of Work Hour Limits on Employee Health

Park, K. F., Yim, J., Kim, Y. J., Park, T.-Y., Kim, M.
Preparing Submission

Cutting South Korea’s workweek from 68 to 52 hours improved employee health on average — but the gains flowed to higher-income and male workers, while the lowest-income quintile saw none or even harm.

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This paper examines whether statutory limits on work hours causally improve employee health. We exploit South Korea’s 2018 reform, which reduced the maximum workweek from 68 to 52 hours while exempting certain transportation and healthcare industries, as a quasi-natural experiment. Using administrative health screening data from the National Health Insurance Service—comprising over 1.23 million employee-year observations with objective clinical biomarkers—we estimate difference-in-differences models comparing employees in treated industries to those in exempt but otherwise comparable sectors. We find that the reform significantly reduced body mass index (BMI), fasting blood sugar (FBS), and liver enzyme levels (SGOT and SGPT) among treated employees relative to controls. These improvements were accompanied by reduced drinking frequency and increased exercise frequency, consistent with lower chronic stress and expanded opportunities for recovery, respectively. However, the benefits were concentrated among higher-income and male employees; the lowest-income quintile experienced no improvement and even adverse effects on liver function. These findings indicate that work hour regulations can improve population health, but that their distributional consequences—particularly for economically vulnerable workers—warrant careful attention in policy design.
W2

Which Side Are You On? Organizational Attention and Technology Adoption in Two-Sided Platforms

Park, K. F.
Under Review

How a two-sided platform allocates attention early in life locks in its response to later technology shifts — U.S. local newspapers that focused on readers lagged digital adoption, saving print but sacrificing digital performance.

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When adapting to technological change, two-sided platforms face a unique challenge: the two interdependent sides they serve may hold conflicting preferences about whether and when to adopt new technology. Platforms that allocate greater organizational attention to one side in order to solve the initial “chicken-and-egg” problem may later find themselves constrained when that side’s preferences diverge from those of the other. Drawing on the attention-based view, we theorize that structural attention allocation shapes how platforms interpret technological change and determines adoption timing, with distinct performance implications. We test our predictions using data from 887 U.S. local newspapers during the early phase of the digital revolution, a period in which advertisers preferred rapid adoption of digital technology while readers preferred delayed adoption. We find that reader-focused newspapers adopted digital technology significantly later than advertiser-focused newspapers. Subsequently, delayed adoption protected print circulation for reader-focused newspapers but universally harmed digital performance regardless of attention structure. Overall, our findings indicate that platforms’ structural attention allocation, established early in their life cycle, creates path-dependent strategic responses to technological change.
W3

Killing the Golden Goose: How Attention to Shareholders Undermines Product Quality

Park, K. F., Chen, Y., Dong, N., Yang, X.
Preparing Submission

Firms subject to a random increase in shareholder scrutiny (via SEC Regulation SHO) went on to recall products significantly more often, revealing a hidden operational cost of shareholder primacy.

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Shareholder value maximization, despite criticism, retains its significance as a key corporate objective. Proponents of shareholder theory argue that shareholder value is synonymous with firm value and that prioritizing shareholder interests leads to better firm performance. Building on the Attention-Based View (ABV), we argue that there is a critical trade-off: when shareholder demands dominate organizational attention hierarchies, firms may neglect operational management, specifically product quality oversight. We theorize that heightened attention to shareholders—amplified by their urgency, legitimacy, and power—reallocates managerial focus and organizational resources away from quality control processes, increasing the likelihood of product recalls. Using a natural experiment (SEC Regulation SHO) that exogenously increases attention to shareholders for a random set of firms, we find that treated firms experience significantly higher product recall rates compared to control firms. This effect is stronger for firms with higher short-term institutional ownership (higher shareholder urgency), more real earnings management (higher shareholder legitimacy), and greater financial distress (higher shareholder power). Our findings reveal an underexplored cost of shareholder primacy: compromised product quality.
C

Awards, Grants, and Fellowships

2026–2027
MGT Special Research Fund
City University of Hong Kong
2023–2026
CityU Strategic Research Grant for unfunded GRF/ECS
City University of Hong Kong
2022–2025
Start-Up Grant for New Faculty
City University of Hong Kong
2019
Marie Skłodowska-Curie Actions Seal of Excellence
European Commission
2017–2018
Joseph H. Taggart Fellowship
New York University
2017
Center for Global Economy and Business Ph.D. Grant
New York University
2013–2017
Doctoral Fellowship
New York University
2016
Doctoral Workshop Scholarship
Strategic Management Society
2012
Benton J. Underwood Fellowship
Northwestern University
2012
Undergraduate Research Grant
Northwestern University
D

Invited Talks

2024
Yonsei University
Department of Management
2020
City University of Hong Kong
Department of Management
2018
Tilburg University
Department of Management
2017
Bocconi University
Department of Management and Technology
2017
Dartmouth University
Department of Strategy and Management
2017
University of Minnesota
Department of Strategic Management and Entrepreneurship
2017
Rice University
Department of Strategy and Environment
2017
London School of Economics
Department of Organisational Behaviour