Publications
Publications
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- All HBS Web
(3,494)
- Faculty Publications (291)
- Article
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
We explain when and how staggered difference-in-differences regression estimators, commonly applied to assess the impact of policy changes, are biased. These biases are likely to be relevant for a large portion of research settings in finance, accounting, and law that... View Details
- March 2022
- Case
Auto Mag (Abridged)
By: David E. Bell
A young HBS graduate purchases a publisher of specialty magazines that advertises second hand cars, boats, trucks, etc. The magazines carry photographs and a brief description of each article for sale. The company faces the problem of deciding on how many magazines to... View Details
- February 2022 (Revised September 2022)
- Case
InstaDeep: AI Innovation Born in Africa (A)
By: Shikhar Ghosh and Esel Çekin
Karim Beguir and Zohra Slim were the co-founders of InstaDeep, a deep tech startup focusing on artificial intelligence (AI) solutions. Instadeep was one of the few companies globally that were partnering with DeepMind, an AI subsidiary of Google [Alphabet Inc.].... View Details
- February 2022 (Revised July 2022)
- Supplement
InstaDeep: AI Innovation Born in Africa (B)
By: Shikhar Ghosh and Esel Çekin
Karim Beguir and Zohra Slim were the co-founders of InstaDeep, a deep tech startup focusing on artificial intelligence (AI) solutions. Instadeep was one of the few companies globally that were partnering with DeepMind, an AI subsidiary of Google [Alphabet Inc.].... View Details
- Article
Adaptive Machine Unlearning
By: Varun Gupta, Christopher Jung, Seth Neel, Aaron Roth, Saeed Sharifi-Malvajerdi and Chris Waites
Data deletion algorithms aim to remove the influence of deleted data points from trained models at a cheaper computational cost than fully retraining those models. However, for sequences of deletions, most prior work in the non-convex setting gives valid guarantees... View Details
- 24 Nov 2021
- Interview
Best Buy: Hubert Joly
By: Guy Raz and Hubert Joly
In 2012, to say there was a crisis at Best Buy—is an understatement. In January, Forbes published an article with the headline: WHY BEST BUY IS GOING OUT OF BUSINESS.
Then, in March, the company reported a loss of $1.7 billion dollars, and in April, the CEO... View Details
Then, in March, the company reported a loss of $1.7 billion dollars, and in April, the CEO... View Details
- November 2021 (Revised March 2022)
- Case
Kwame Spearman at Tattered Cover: Reinventing Brick-and-Mortar Retail
By: Ryan Raffaelli and Kerry Herman
The case spotlights Kwame Spearman’s career-shifting decision to leave a NYC-based consulting job to return to his hometown of Denver, Colorado, and take over an iconic independent bookstore, The Tattered Cover. The case lays out ways Spearman envisions a new approach... View Details
- October 2021 (Revised February 2022)
- Case
Newsweek: Driving a Digital First Strategy
By: Lynda M. Applegate and Suraj Srinivasan
The case describes the transformation at Newsweek, the storied news magazine that had fallen from its commanding position as a premier print publication unable to find its footing in the fast changing digital media landscape. After buying Newsweek and taking over as... 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
- 2 Sep 2021
- Interview
Amy Edmondson
By: Amy C. Edmondson and Deepak Jayaraman
Amy C. Edmondson is the Novartis Professor of Leadership and Management at the Harvard Business School.
Amy has been recognized by the biannual Thinkers50 global ranking of management thinkers since 2011, and most recently was ranked #3 in 2019. She studies teaming,... View Details
- 2021
- Article
An Empirical Examination of Sell-Side Brokerage Analysts' Published Research, Concierge Services, and High-Touch Services
By: David A. Maber, Boris Groysberg and Paul M. Healy
This paper uses a proprietary panel dataset to categorize and quantify the activities that sell-side brokerage analysts use to build and sustain their network of buy-side client relations. We then examine the marginal impact of these activities on key analyst outcome... View Details
- August 2021
- Article
Multiple Imputation Using Gaussian Copulas
By: F.M. Hollenbach, I. Bojinov, S. Minhas, N.W. Metternich, M.D. Ward and A. Volfovsky
Missing observations are pervasive throughout empirical research, especially in the social sciences. Despite multiple approaches to dealing adequately with missing data, many scholars still fail to address this vital issue. In this paper, we present a simple-to-use... View Details
- 2023
- Working Paper
Data Governance, Interoperability and Standardization: Organizational Adaptation to Privacy Regulation
By: Sam (Ruiqing) Cao and Marco Iansiti
The increasing availability of data can afford dynamic competitive advantages among data-intensive
corporations, but governance bottlenecks hinder data-driven value creation and increase regulatory risks.
We analyze the role of two technological features of data... 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
- Article
How History Shaped the Innovator's Dilemma
By: Tom Nicholas
In 1993, four years prior to the publication of Clayton Christensen’s highly influential book, The Innovator’s Dilemma, the Business History Review (BHR) published an article by Christensen titled “The Rigid Disk Drive Industry: A History of... View Details
- March 2021 (Revised January 2024)
- Case
Ayn Rand: Changing the World
By: Robert Simons and Max Saffer
This case traces the life of Ayn Rand from Russia to Hollywood to New York City. The case describes how Rand fled communist Russia and, in reaction to the deprivations she experienced under communism, developed a philosophy idealizing free will and personal... View Details
- 2021
- Working Paper
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the... View Details
- 2021
- Article
The Sustainable Corporate Governance Initiative in Europe
By: Mark Roe, Holger Spamann, Jesse M. Fried and Charles C.Y. Wang
In July 2020, the European Commission published the “Study on directors’ duties and sustainable corporate governance” by EY. The Report purports to find evidence of debilitating short-termism in EU corporate governance and recommends many changes to support sustainable... View Details
- 2021
- Book
Harvard Business Review Family Business Handbook: How to Build and Sustain a Successful, Enduring Enterprise
By: Josh Baron and Rob Lachenauer
Navigate the complex decisions and critical relationships necessary to create and sustain a healthy family business--and business family. Though "family business" may sound like it refers only to mom-and-pop shops, businesses owned by families are among the most... View Details
- November 2020
- Case
Axis My India
By: Ananth Raman, Ann Winslow and Kairavi Dey
Pradeep Gupta founded Axis My India (AMI) as a printing and publishing company in 1998. In 2013, AMI expanded into consumer research and election forecasting. Although a relatively unknown entity, AMI predicted several election results accurately. Gupta describes AMI’s... View Details