Publications
Publications
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- Faculty Publications (665)
- 2022
- Article
Which Corporate ESG News Does the Market React To?
By: George Serafeim and Aaron Yoon
Using a dataset that classifies firm-level ESG news as positive and negative, we examine how stock prices react to different types of ESG news. We analyze 111,020 firm-day observations for 3,126 companies and find that prices react only to issues identified as... View Details
- 2022
- Working Paper
Addressing Vaccine Hesitancy: Experimental Evidence from Nine Countries during the COVID-19 Pandemic
By: Vincenzo Galasso, Vincent Pons, Paola Profeta, Michael Becher, Sylvain Brouard and Martial Foucault
Millions of people refuse COVID-19 vaccination. Using original data from two surveys in nine OECD countries, we analyze the determinants of anti-vax intentions in December 2020 and show that half of the anti-vax individuals were vaccinated by summer 2021. Vaccinations... View Details
- 2024
- Working Paper
What Triggers National Stock Market Jumps?
By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
- February 2022
- Article
Client Concerns about Information Spillovers from Sharing Audit Partners
By: Jung Koo Kang, Clive Lennox and Vivek Pandey
We hypothesize that companies in the same product market avoid sharing the same audit partner when they are concerned about possible information spillovers. Consistent with our hypothesis, we find that product market rivals are less likely to share the same partner... View Details
- January 2022
- Article
Global Behaviors, Perceptions, and the Emergence of Social Norms at the Onset of the COVID-19 Pandemic
By: Lukas Hensel, Marc Witte, Stefano Caria, Thiemo Fetzer, Stefano Fiorin, Friedrich M. Goetz, Margarita Gomez, Johannes Haushofer, Andriy Ivchenko, Gordon T. Kraft-Todd, Elena Reutskaja, Christopher Roth, Erez Yoeli and Jon M. Jachimowicz
We conducted a large-scale survey covering 58 countries and over 100,000 respondents between late March and early April 2020 to study beliefs and attitudes towards citizens' and governments' responses at the onset of the COVID-19 pandemic. Most respondents reported... View Details
- December 2021
- Article
Cash-for-Information Whistleblower Programs: Effects on Whistleblowing and Consequences for Whistleblowers
By: Aiyesha Dey, Jonas Heese and Gerardo Pérez Cavazos
We study the effect of financial incentives on whistleblowing and the consequences for whistleblowers under the cash-for-information program of the False Claims Act (FCA). Exploiting appeals-court decisions that increase financial incentives for whistleblowing, we find... View Details
- December 2021
- Article
Left- and Right-Leaning News Organizations Use Negative Emotional Content and Elicit User Engagement Similarly
By: Andrea Bellovary, Nathaniel Young and Amit Goldenberg
Negativity has historically dominated news content; however, little research has examined how news organizations use affect on social media, where content is generally positive. In the current project we ask a few questions: Do news organizations on Twitter use... View Details
Keywords: Negative Press; Twitter; Political Affiliation; Affect; News; Media; Internet and the Web; Emotions; Perspective; Social Media
- 2022
- Working Paper
ESG: Hyperboles and Reality
By: George Serafeim
ESG has rapidly become a household name leading to both confusion about what it means and creating unrealistic expectations about its effects. In this paper, I draw on more than a decade of research to dispel several myths about ESG and provide answers to important... View Details
- November 2021
- Article
Borrower Leakage from Costly Screening: Evidence from SME Lending in Peru
By: Irani Arraiz, Miriam Bruhn, Benjamin N. Roth, Claudia Ruiz-Ortega and Rodolfo Stucchi
We provide evidence that commercial lenders in Peru suffer leakages in their loan approval process. Leveraging a discontinuity in the loan approval process of a large bank, we find that receiving a loan approval from the bank causes loan applicants to receive offers... View Details
- November 2021
- Article
Venture Capitalists and COVID-19
By: Paul A. Gompers, Will Gornall, Steven N. Kaplan and Ilya A. Strebulaev
We survey over 1,000 institutional and corporate venture capitalists (VCs) at more than 900 different firms to learn how their decisions and investments have been affected by the COVID-19 pandemic. We compare their survey answers to those provided by a large sample of... View Details
- October 2021
- Article
Shareholder Activism and Firms' Voluntary Disclosure of Climate Change Risks
By: Caroline Flammer, Michael W. Toffel and Kala Viswanathan
This paper examines whether—in the absence of mandated disclosure requirements—shareholder activism can elicit greater disclosure of firms’ exposure to climate change risks. We find that environmental shareholder activism increases the voluntary disclosure of climate... View Details
Keywords: Transparency; Reporting; Shareholder Engagement; Shareholder Activism; Climate Change; Risk and Uncertainty; Environmental Management; Investment Activism; Corporate Disclosure; Communication Strategy; Information Publishing; Measurement and Metrics; Corporate Social Responsibility and Impact; Problems and Challenges; United States
- Summer 2021
- Article
Predictable Country-level Bias in the Reporting of COVID-19 Deaths
By: Botir Kobilov, Ethan Rouen and George Serafeim
We examine whether a country’s management of the COVID-19 pandemic relate to the downward biasing of the number of reported deaths from COVID-19. Using deviations from historical averages of the total number of monthly deaths within a country, we find that the... View Details
- July 2021 (Revised July 2022)
- Case
Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care
By: Robert S. Kaplan, Navraj S. Nagra and Syed S. Shehab
Dr. Andrea Pusic, breast cancer reconstruction surgeon, wants to extend outcomes measurement beyond traditional surgical metrics of infections, complications, and survival rates. The case describes her development of a new mobile phone app, which collects patients’... View Details
- July 2021
- Article
Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market
By: Hui Li and Feng Zhu
Platform competition is shaped by the likelihood of multi-homing (i.e., complementors or consumers adopt more than one platform). To take advantage of multi-homing, platform firms often attempt to motivate their rivals’ high-performing complementors to adopt their own... View Details
- 2021
- Working Paper
Public Disclosure of Private Meetings: Does Observing Peers' Information Acquisition Affect Analysts' Attention Allocation?
By: Yi Ru, Ronghuo Zheng and Yuan Zou
We investigate the impact of observing peers’ information acquisition on financial analysts’ attention allocation. Using the timely disclosure mandate by the Shenzhen Stock Exchange as a setting, we find that, when analysts can observe that a firm is visited by other... View Details
- May 2021
- Article
The Firm Next Door: Using Satellite Images to Study Local Information Advantage
By: Jung Koo Kang, Lorien Stice-Lawrence and Forester Wong
We use novel satellite data that track the number of cars in the parking lots of 92,668 stores for 71 publicly listed U.S. retailers to study the local information advantage of institutional investors. We establish car counts as a timely measure of store-level... View Details
- April 17, 2021
- Article
Reimagining India's Health System: A Lancet Citizens' Commission
By: Vikram Patel, Kiran Mazumdar-Shaw, Gagandeep Kang, Pamela Das and Tarun Khanna
This commentary announces the launch of the Lancet Citizens’ Commission on Reimagining India’s Health System. The Commission is an ambitious, cross-sectoral effort to develop a citizens’ roadmap to achieving universal health coverage (UHC) in India in the next decade.... View Details
- April 2021
- Article
Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry
By: K. Francis Park, Robert Seamans and Feng Zhu
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... View Details
- February 2021
- Case
Digital Manufacturing at Amgen
By: Shane Greenstein, Kyle R. Myers and Sarah Mehta
This case discusses efforts made by biotechnology (biotech) company Amgen to introduce digital technologies into its manufacturing processes. Doing so is complicated by the fact that the process for manufacturing biologics—or therapeutics made from living cells—is... View Details
Keywords: Digital Technologies; Change; Change Management; Decision Making; Cost vs Benefits; Decisions; Information; Analytics and Data Science; Innovation and Invention; Innovation and Management; Innovation Leadership; Innovation Strategy; Technological Innovation; Jobs and Positions; Knowledge; Leadership; Organizational Culture; Science; Strategy; Information Technology; Technology Adoption; Biotechnology Industry; Pharmaceutical Industry; United States; California; Puerto Rico; Rhode Island
- 2021
- Working Paper
Connecting Expected Stock Returns to Accounting Valuation Multiples: A Primer
By: Akash Chattopadhyay, Matthew R. Lyle and Charles C.Y. Wang
We outline a framework in which accounting “valuation anchors" could be connected to expected stock returns. Under two general conditions, expected log returns is a log-linear function of a valuation (market value-to-accounting) multiple and the expected growth in the... View Details
Keywords: Expected Returns; Present Value; Investment Return; Accounting; Valuation; Information; Framework