Publications
Publications
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- All HBS Web
(1,243)
- Faculty Publications (254)
- 2020
- Working Paper
Best Ideas
By: Miguel Antón, Randolph B. Cohen and Christopher Polk
We find that the stocks in which active mutual fund or hedge fund managers display the most conviction towards ex-ante, their “Best ideas,” outperform the market, as well as the other stocks in those managers’ portfolios, by approximately 2.8 to 4.5 percent per year,... View Details
- 2020
- Working Paper
EMEs and COVID-19: Shutting Down in a World of Informal and Tiny Firms
By: Laura Alfaro, Oscar Becerra and Marcela Eslava
Emerging economies are characterized by an extremely high prevalence of informality, small-firm employment and jobs not fit for working from home. These features factor into how the COVID-19 crisis has affected the economy. We develop a framework that, based on... View Details
- Article
Development of a Deep Learning Algorithm for Periapical Disease Detection in Dental Radiographs
By: Michael G. Endres, Florian Hillen, Marios Salloumis, Ahmad R. Sedaghat, Stefan M. Niehues, Olivia Quatela, Henning Hanken, Ralf Smeets, Benedicta Beck-Broichsitter, Carsten Rendenbach, Karim R. Lakhani, Max Helland and Robert A. Gaudin
Periapical radiolucencies, which can be detected on panoramic radiographs, are one of the most common radiographic findings in dentistry and have a differential diagnosis including infections, granuloma, cysts, and tumors. In this study, we seek to investigate the... View Details
- June 2020
- Article
How Scheduling Can Bias Quality Assessment: Evidence from Food Safety Inspections
By: Maria Ibanez and Michael W. Toffel
Accuracy and consistency are critical for inspections to be an effective, fair, and useful tool for assessing risks, quality, and suppliers—and for making decisions based on those assessments. We examine how inspector schedules could introduce bias that erodes... View Details
- June 2020
- Article
Start-up Inertia versus Flexibility: The Role of Founder Identity in a Nascent Industry
By: Tiona Zuzul and Mary Tripsas
Through an inductive, comparative study of four early entrants in the nascent air taxi market, we examine why start-ups, generally characterized as flexible, malleable entities, might instead exhibit inertial behavior. While two of the firms engaged in ongoing... View Details
- May 2020
- Article
Into the Fray: Adaptive Approaches to Studying Novel Teamwork Forms
By: Michaela Kerrissey, Patricia Satterstrom and Amy C. Edmondson
Novel forms of teamwork—created by rapid change and growing diversity among collaborators—are increasingly common, and they present substantial methodological challenges for research. We highlight two aspects of new team forms that challenge conventional methods.... View Details
- 2020
- Working Paper
Social Interactions in Pandemics: Fear, Altruism, and Reciprocity
By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi
In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google... View Details
- 26 Apr 2020
- Other Presentation
Towards Modeling the Variability of Human Attention
By: Kuno Kim, Megumi Sano, Julian De Freitas, Daniel Yamins and Nick Haber
Children exhibit extraordinary exploratory behaviors hypothesized to contribute to the building of models of their world. Harnessing this capacity in artificial systems promises not only more flexible technology but also cognitive models of the developmental processes... View Details
- 2020
- Working Paper
Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time
By: Laura Alfaro, Anusha Chari, Andrew Greenland and Peter K. Schott
We show that unexpected changes in the trajectory of COVID-19 infections predict U.S. stock returns, in real time. Parameter estimates indicate that an unanticipated doubling (halving) of projected infections forecasts next-day decreases (increases) in aggregate U.S.... View Details
- 2020
- Working Paper
Working (From Home) During a Crisis: Online Social Contributions by Workers During the Coronavirus Shock
By: Prithwiraj Choudhury, Wesley W. Koo and Xina Li
Prior research has documented that during mortality-related crises workers face psychic costs and are motivated to make social contributions. In addition, management practices that encourage workers to make social contributions during a crisis create value for firms.... View Details
- 2021
- Working Paper
Corporate Environmental Impact: Measurement, Data and Information
By: David Freiberg, DG Park, George Serafeim and T. Robert Zochowski
As an organization’s environmental impact has become a central societal consideration, thereby affecting industry and organizational competitiveness, interest in measuring and analyzing environmental impact has increased. We develop a methodology to derive comparable... View Details
Keywords: Environment; Impact; Measurement; Environmental Ratings; Corporate Valuation; Financial Materiality; Sustainability; Environmental Impact; Environmental Strategy; Impact-Weighted Accounts; IWAI; Environmental Sustainability; Corporate Social Responsibility and Impact; Measurement and Metrics; Valuation
- February 2020 (Revised March 2020)
- Case
Managing Blackout at Aluminum Bahrain B.S.C. (Alba) (A)
By: Joseph B. Fuller, Gamze Yücaoğlu and Youssef Abdel Aal
The case opens in 2017 as Tim Murray, CEO of Aluminum Bahrain (Alba), the largest single-site aluminum smelter in the world outside China and a major contributor to the Bahraini economy, was contemplating the recovery options as the company was facing the most severe... View Details
- February 2020
- Supplement
Managing Blackout at Aluminum Bahrain B.S.C. (Alba) (B)
By: Joseph B. Fuller, Gamze Yücaoğlu and Youssef Abdel Aal
The case opens in 2017 as Tim Murray, CEO of Aluminum Bahrain (Alba), the largest single-site aluminum smelter in the world outside China and a major contributor to the Bahraini economy, was contemplating the recovery options as the company was facing the most severe... View Details
- 2020
- Book
Competing in the Age of AI: Strategy and Leadership When Algorithms and Networks Run the World
By: Marco Iansiti and Karim R. Lakhani
In industry after industry, data, analytics, and AI-driven processes are transforming the nature of work. While we often still treat AI as the domain of a specific skill, business function, or sector, we have entered a new era in which AI is challenging the very... View Details
- December 2019
- Case
WeWork Files for an IPO
By: Lynn S. Paine and Will Hurwitz
For the board of The We Company—better known as WeWork—August 14, 2019, promised to be a pivotal day. It was then that WeWork’s IPO prospectus, known as an S-1 filing, would be made public, giving potential investors, the media, and the general public a window into the... View Details
- 2019
- Chapter
Integrated Partnerships in Cultural Sponsorship: The Cases of Guggenheim UBS and MFA Boston-Fleet
By: Stephen A. Greyser and Ragnar Lund
This chapter presents and interprets two field-based studies of sponsorship collaborations between major museums and significant financial institutions—a global multi-year partnership between the Guggenheim Foundation and UBS, and the pioneering regional integrated... View Details
- Article
The Role of Interactivity in Local Differential Privacy
By: Matthew Joseph, Jieming Mao, Seth Neel and Aaron Leon Roth
We study the power of interactivity in local differential privacy. First, we focus on the difference between fully interactive and sequentially interactive protocols. Sequentially interactive protocols may query users adaptively in sequence, but they cannot return to... View Details
- November 2019
- Teaching Note
The Bundesliga in the U.S.
By: Stephen A. Greyser, Sascha L. Schmidt and Florian Holzmayer
This Teaching Note addresses the classroom use of the case on the strategy of Germany’s premier football (soccer) league to “win the marketplace of U.S. sports broadcasters and consumers.” The note includes study questions and a teaching plan that also draws on... View Details
- October 2019
- Article
Returns to Talent and the Finance Wage Premium
By: Boris Vallée and Claire Célérier
To study the role of talent in finance workers' pay, we exploit a special feature of the French higher education system. Wage returns to talent have been significantly higher and have risen faster in finance since the 1980s than in other sectors. Both wage returns to... View Details
- September 2019
- Article
Contingent Capital Trigger Effects: Evidence from Liability Management Exercises
By: Boris Vallée
This paper investigates the so called liability management exercises by European banks, which bear comparable effects to triggering contingent capital. I first explore the determinants of these exercises. I then study market reactions to these operations as well as... View Details