Publications
Publications
Show Results For
- All HBS Web
(3,666)
- Faculty Publications (934)
- 2022
- Working Paper
Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments
By: Kosuke Imai and Michael Lingzhi Li
Researchers are increasingly turning to machine learning (ML) algorithms to investigate causal heterogeneity in randomized experiments. Despite their promise, ML algorithms may fail to accurately ascertain heterogeneous treatment effects under practical settings with... View Details
- March 2022
- Article
Where to Locate COVID-19 Mass Vaccination Facilities?
By: Dimitris Bertsimas, Vassilis Digalakis Jr, Alexander Jacquillat, Michael Lingzhi Li and Alessandro Previero
The outbreak of COVID-19 led to a record-breaking race to develop a vaccine. However, the limited vaccine capacity creates another massive challenge: how to distribute vaccines to mitigate the near-end impact of the pandemic? In the United States in particular, the new... View Details
- Article
A 680,000-Person Megastudy of Nudges to Encourage Vaccination in Pharmacies
By: Katherine L. Milkman, Linnea Gandhi, Mitesh S. Patel, Heather N. Graci, Dena M. Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Jake Rothschild, Jonathan E. Bogard, Ilana Brody, Christopher F. Chabris, Edward Chang, Gretchen B. Chapman, Jennifer E. Dannals, Noah J. Goldstein, Amir Goren, Hal Hershfield, Alex Hirsch, Jillian Hmurovic, Samantha Horn, Dean Karlan, Ariella S. Kristal, Cait Lamberton, Michael N. Meyer, Allison H. Oakes, Maurice E. Schweitzer, Maheen Shermohammed, Jaochim H. Talloen, Caleb Warren, Ashley V. Whillans, Kuldeep N. Yadav, Julian J. Zlatev, Ron Berman, Chalanda N. Evans, Rahul Ladhania, Jens Ludwig, Nina Mazar, Sendhil Mullainathan, Christopher K. Snider, Jann Spiess, Eli Tsukayama, Lyle Ungar, Christophe Van den Bulte, Kevin G. Volpp and Angela L. Duckworth
Encouraging vaccination is a pressing policy problem. To assess whether text-based reminders can encourage pharmacy vaccination and what kinds of messages work best, we conducted a megastudy. We randomly assigned 689,693 Walmart pharmacy patients to receive one of 22... 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
- 2022
- Book
The Role of Innovation and Entrepreneurship in Economic Growth
By: Michael J. Andrews, Aaron Chatterji, Josh Lerner and Scott Stern
We live in an era in which innovation and entrepreneurship seem ubiquitous, particularly in regions like Silicon Valley, Boston, and the Research Triangle Park. But many metrics of economic growth, such as productivity growth and business dynamism, have been at best... View Details
- December 2021 (Revised January 2023)
- Case
Katerra (A)
By: Lindsay N. Hyde, Thomas R. Eisenmann and Tom Quinn
In April 2020, Katerra executives struggled with a series of decisions that would determine the fate of one of the best-funded construction startups in history. Katerra was founded in 2015 by technology-industry executive Michael Marks and commercial real estate... View Details
- December 2021 (Revised January 2023)
- Supplement
Katerra (B)
By: Lindsay N. Hyde, Thomas R. Eisenmann and Tom Quinn
In May 2020, SoftBank executives, having invested nearly $2 billion in Katerra, decided the vision of an end-to-end, vertically-integrated construction process was worth saving—with some major changes to company structure. The SoftBank Vision Fund invested $200 million... View Details
- 2021
- Article
ThreeDWorld: A Platform for Interactive Multi-Modal Physical Simulation
By: Chuang Gan, Jeremy Schwartz, Seth Alter, Damian Mrowca, Martin Schrimpf, James Traer, Julian De Freitas, Jonas Kubilius, Abhishek Bhandwaldar, Nick Haber, Megumi Sano, Kuno Kim, Elias Wang, Michael Lingelbach, Aidan Curtis, Kevin Feigelis, Daniel M. Bear, Dan Gutfreund, David Cox, Antonio Torralba, James J. DiCarlo, Joshua B. Tenenbaum, Josh H. McDermott and Daniel L.K. Yamins
We introduce ThreeDWorld (TDW), a platform for interactive multi-modal physical simulation. TDW enables simulation of high-fidelity sensory data and physical interactions between mobile agents and objects in rich 3D environments. Unique properties include: real-time... View Details
- 2021
- Working Paper
COVID-19, Government Performance, and Democracy: Survey Experimental Evidence from 12 Countries
By: Michael Becher, Nicholas Longuet Marx, Vincent Pons, Sylvain Brouard, Martial Foucault, Vincenzo Galasso, Eric Kerrouche, Sandra León Alfonso and Daniel Stegmueller
Beyond its immediate impact on public health and the economy, the COVID-19 pandemic has put democracy under stress. While a common view is that people should blame the government rather than the political system for bad crisis management, an opposing view is that... View Details
- October 2021 (Revised January 2022)
- Supplement
Michael Ku and Global Clinical Supply at Pfizer Inc.: Bringing Hope to Patients (C)
By: Linda A. Hill and Emily Tedards
This case is the third installment in a series about the 10-year cultural and digital transformation of Pfizer’s Global Clinical Supply organization. In 2011, Michael Ku became Pfizer’s Vice President of Global Clinical Supply (GCS) after the company had undergone... View Details
Keywords: Clinical Supply Chain; COVID-19; Vaccine; Agile; Innovation and Invention; Change Management; Organizational Culture; Transformation; Leadership; Corporate Strategy; Health Pandemics; Crisis Management; Mission and Purpose; Health Care and Treatment; Supply Chain Management; Digital Transformation
- October 26, 2021
- Article
Value Chain Management to Implement Post-COVID-19 Health Care Strategy: The COVID-19 Crisis Has Created Areas of Innovation That Should Be Embraced by Health Care Leaders
By: Michael E. Porter, Junaid Nabi and Thomas H. Lee
Health care organizations must learn from what has worked during the COVID-19 crisis. Leaders have found that while they cannot do everything, they must define and manage the sequence of activities required to deliver high-value care. View Details
- October 2021
- Article
Can Self-Regulation Save Digital Platforms?
By: Michael A. Cusumano, Annabelle Gawer and David B. Yoffie
This article explores some of the critical challenges facing self-regulation and the regulatory environment for digital platforms. We examine several historical examples of firms and industries that attempted self-regulation before the Internet. All dealt with similar... View Details
- October 2021
- Article
Communicating Resource Scarcity and Interpersonal Connection
By: Grant E. Donnelly, Anne V. Wilson, Ashley V. Whillans and Michael I. Norton
Consumers often cite insufficient time or money as an excuse for rejecting social invitations. We explore the effectiveness of these excuses in preserving interpersonal relationships. Six studies—including perceptions of couples planning their wedding—demonstrate that... 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
- September 15, 2021
- Article
Improving Deconvolution Methods in Biology Through Open Innovation Competitions: An Application to the Connectivity Map
By: Andrea Blasco, Ted Natoli, Michael G. Endres, Rinat A. Sergeev, Steven Randazzo, Jin Hyun Paik, N.J. Maximilian Macaluso, Rajiv Narayan, Xiaodong Lu, David Peck, Karim R. Lakhani and Aravind Subramanian
A recurring problem in biomedical research is how to isolate signals of distinct populations (cell types, tissues, and genes) from composite measures obtained by a single analyte or sensor. Existing computational deconvolution approaches work well in many specific... View Details
- August 2021 (Revised February 2024)
- Case
Data Science at the Warriors
By: Iavor I. Bojinov and Michael Parzen
The case explores the development and early growth of a data science team at the Golden State Warriors, an NBA team based in San Francisco. The case begins by explaining the initial rationale for investing in data science, then covers a debate on the appropriate team... View Details
- August 2021 (Revised October 2024)
- Case
Allbirds: Decarbonizing Fashion (A)
By: Michael W. Toffel, Kenneth P. Pucker and Eren Kuzucu
The Allbirds: Decarbonizing Fashion (A) case introduces Allbirds as a footwear startup not only focused on simple design, comfort, and sustainable natural materials but on decarbonizing the wider fashion industry. Background material highlights the growing... View Details
Keywords: Decarbonization; Climate Impact; Environmental Strategy; Innovation; Product Design; Supply Chain Management; Innovation Strategy; Innovation and Management; Product Development; Climate Change; Environmental Management; Environmental Sustainability; Apparel and Accessories Industry; Fashion Industry; United States; California
- August 2021 (Revised April 2022)
- Case
Intenseye: Powering Workplace Health and Safety with AI
By: Michael W. Toffel and Youssef Abdel Aal
Intenseye was a Turkey-based technology startup that deployed machine learning algorithms to workplace camera feeds in order to identify unsafe worker actions and unsafe working conditions, in order to help improve worker safety. The case describes how Intenseye’s... View Details
- 2021
- Working Paper
The Changing Role of Business in Society
Business interaction with the U.S. government, historically based on securing industry or company special interests at the expense of the public good, has enabled and furthered government dysfunction. Gridlock within the American political system has precluded the... View Details
Keywords: Politics; Shared Value; Social Progress Index; Competitiveness; Walmart; BlackRock; ESG (Environmental, Social, Governance) Performance; ESG; Transparency; Campaign Contributions; Campaign Finance; Lobbying; Revolving Door; Political Ideology; Political Parties; Political Partisanship; Government And Business; Government Innovation; Elections; Democracy; Capitalism; Stakeholder Capitalism; Shareholder Engagement; Competition; Strategy; Government and Politics; Society; Social Issues; Human Needs; Wealth and Poverty; Business and Community Relations; Business and Government Relations; Corporate Accountability; Financial Services Industry; Banking Industry; United States
- July 2021
- Case
A Close Shave at Squire
In 2020, just after closing a $34 million Series B financing round, Dave Salvant and Songe LaRon consider how to adjust their business, Squire Technologies, to the new realities posed by the COVID-19 pandemic. Their barbershop technology, including tools to run a shop... View Details