Publications
Publications
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(8,329)
- Faculty Publications (1,970)
- September 2023 (Revised September 2023)
- Teaching Note
Roche: Innovation and Access to Healthcare
By: George Serafeim
Teaching Note for HBS Case No. 123-075. In May 2022, Roche Group, one of the largest healthcare companies in the world, hosted its first investor event focused exclusively on its efforts to impact access to healthcare. While Roche had recently set an ambitious goal to... View Details
- September 2023 (Revised January 2024)
- Case
Icahn Enterprises: Ponzi Scheme or Sound Investment
By: Aiyesha Dey, Jonas Heese and James Weber
Icahn Enterprises, a publicly traded limited partnership founded and operated by famed activist investor Carl Icahn, had earned above market returns for over a decade. Between 2018 and early 2023, it had a compound annual return of 31%. Icahn invested in undervalued... View Details
- 2023
- Working Paper
Navigating the Jagged Technological Frontier: Field Experimental Evidence of the Effects of AI on Knowledge Worker Productivity and Quality
By: Fabrizio Dell'Acqua, Edward McFowland III, Ethan Mollick, Hila Lifshitz-Assaf, Katherine C. Kellogg, Saran Rajendran, Lisa Krayer, François Candelon and Karim R. Lakhani
The public release of Large Language Models (LLMs) has sparked tremendous interest in how humans will use Artificial Intelligence (AI) to accomplish a variety of tasks. In our study conducted with Boston Consulting Group, a global management consulting firm, we examine... View Details
- September 2023 (Revised October 2024)
- Case
Forecasting Climate Risks: Aviva’s Climate Calculus
By: Mark Egan and Peter Tufano
In late 2021, Ben Carr, Director of Analytics and Capital Modeling at Aviva Plc (Aviva)—a leading insurer with core operations in the UK, Ireland and Canada,—was preparing for an upcoming presentation before the company's board which included its CEO, Amanda Blanc,... View Details
- September 2023
- Article
(Not) Paying for Diversity: Repugnant Market Concerns Associated with Transactional Approaches to Diversity Recruitment
In a 20-month ethnographic study, I examine how a technology firm, ShopCo (a pseudonym), considered 13 different recruitment platforms to attract racial minority engineering candidates. I find that when choosing whether to adopt recruitment platforms focused on racial... View Details
- 2025
- Working Paper
Better Keep the Twenty Dollars: Incentivizing Innovation in Open Source
By: Annamaria Conti, Vansh Gupta, Jorge Guzman and Maria P. Roche
Open source is key to innovation yet is assumed to be done largely through intrinsic motivation. How can we incentivize it? In this paper, we examine the impact of a program providing monetary incentives to motivate innovators to contribute to open source. The Sponsors... View Details
- September 2023
- Article
Corporate Purpose in Public and Private Firms
By: Claudine Gartenberg and George Serafeim
Analyzing data from approximately 1.5 million employees across 1,108 established public and private US companies, we find that the strength of employee beliefs related to purpose is weaker in public companies. Among public companies, those beliefs are stronger for... View Details
- September 2023 (Revised May 2025)
- Teaching Note
On (A) and (B)
By: Ramon Casadesus-Masanell, Karolin Frankenberger, Sascha Mader, Jordan Mitchell and Karen Elterman
Teaching Note for "On," HBS Case No. 723-430. On is a premium performance running shoe company founded in Switzerland in 2010. The company rapidly gained traction through its unique CloudTec cushioning technology, its innovative midsole plate called the Speedboard, and... View Details
Keywords: Brands and Branding; Business Growth and Maturation; Business Model; Business Startups; Business Strategy; Competitive Advantage; Competitive Strategy; Corporate Strategy; Customer Focus and Relationships; Customer Satisfaction; Digital Marketing; Disruptive Innovation; Distribution Channels; Entrepreneurship; Environmental Sustainability; Global Strategy; Initial Public Offering; Innovation and Invention; Innovation Strategy; Market Entry and Exit; Marketing Strategy; Product Design; Product Development; Product Marketing; Social Media; Strategy; Supply Chain Management; Technological Innovation; Apparel and Accessories Industry; Consumer Products Industry; Manufacturing Industry; Retail Industry; Sports Industry; Europe; Germany; Switzerland; United States
- September 2023 (Revised September 2023)
- Supplement
On Slides
By: Ramon Casadesus-Masanell, Karolin Frankenberger, Sascha Mader, Jordan Mitchell and Karen Elterman
Slides to support the teaching of the On case, 723-430. On is a premium performance running shoe company founded in Switzerland in 2010. The company rapidly gained traction through its unique CloudTec cushioning technology, its innovative midsole plate called the... View Details
Keywords: Brands and Branding; Business Growth and Maturation; Business Model; Business Startups; Business Strategy; Competitive Advantage; Competitive Strategy; Corporate Strategy; Customer Focus and Relationships; Customer Satisfaction; Digital Marketing; Disruptive Innovation; Distribution Channels; Entrepreneurship; Environmental Sustainability; Global Strategy; Initial Public Offering; Innovation and Invention; Innovation Strategy; Market Entry and Exit; Marketing Strategy; Product Design; Product Development; Product Marketing; Social Media; Strategy; Supply Chain Management; Technological Innovation; Apparel and Accessories Industry; Consumer Products Industry; Manufacturing Industry; Retail Industry; Sports Industry; Europe; Germany; Switzerland; United States
- September–October 2023
- Article
Prospective Evaluation of the Cost of Performing Breast Imaging Examinations Using Time-Driven Activity-Based Costing Method: A Single Center Study
By: Aamir Ali, Jordana Phillips, Damir Ljuboja, Syed S. Shehab, Etta D. Pisano, Robert S. Kaplan and Ammar Sarwar
We use time-driven activity-based costing (TDABC) to measure the cost of performing breast imaging using different modalities: full-field digital mammography (FFDM), digital breast tomosynthesis (DBT), contrast-enhanced mammography (CEM), US and MRI exams, and... View Details
- September 2023
- Article
Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement
By: George Serafeim and Aaron Yoon
We investigate whether ESG ratings predict future ESG news and the associated market reactions. We find that the consensus rating predicts future news, but its predictive ability diminishes for firms with large disagreement between raters. Relation between news and... View Details
Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Disclosure; ESG Ratings; ESG Reporting; ESG Disclosure Metrics; Sustainability; Investments; Disagreement; Rating Disagreement; Ratings; Environmental Sustainability; Social Issues; Corporate Social Responsibility and Impact; Performance; News; Investment; Financial Markets; Stocks; Price
- September 2023
- Article
The Dynamics of Team Learning: Harmony and Rhythm in Teamwork Arrangements for Innovation
By: Jean-François Harvey, Johnathan R. Cromwell, Kevin J. Johnson and Amy C. Edmondson
Innovation teams must navigate inherent tensions between different learning activities to produce high levels of performance. Yet, we know little about how teams combine these activities—notably reflexive, experimental, vicarious, and contextual learning—most... View Details
- 2023
- Working Paper
The Stock Market and Bank Risk-Taking
By: David S. Scharfstein and Antonio Falato
Using confidential supervisory risk ratings, we document that banks increase risk after they go public compared to a control group of banks that filed to go public but withdrew their filings for plausibly exogenous reasons. The increase in risk increases short-term... View Details
- 2023
- Working Paper
Targeting, Personalization, and Engagement in an Agricultural Advisory Service
By: Susan Athey, Shawn Cole, Shanjukta Nath and Jessica Zhu
ICT is increasingly used to deliver customized information in developing countries. We
examine whether individually targeting the timing of automated voice calls meaningfully
increases engagement in an agricultural advisory service. We define, estimate, and... View Details
- August 2023 (Revised October 2023)
- Case
Beyond the Barricades: Chile 2023
Chile, often considered among Latin America's greatest economic success stories, suffered a shocking wave of protests in October 2019, as its citizens demanded reforms across healthcare and education systems, and protested inequality and rising costs of living. As... View Details
- 2023
- Working Paper
Much Ado About Nothing? Overreaction to Random Regulatory Audits
By: Samuel Antill and Joseph Kalmenovitz
Regulators often audit firms to detect non-compliance. Exploiting a natural experiment in the lobbying industry, we show that firms overreact to audits and this response distorts prices and reduces welfare. Each year, federal regulators audit a random sample of... View Details
- August 2023
- Case
Reimagining Hindustan Unilever (A)
By: Sunil Gupta and Rachna Tahilyani
In the fall of 2019, the CEO and MD of Hindustan Unilever (HUL), India’s largest fast-moving consumer goods (FMCG) firm, is wondering what to do about their experiments to digitize distribution. Despite three years of intense efforts, their apps to empower retailers... View Details
- August 2023
- Article
What About the Race Between Technology and Education in the Global South? Comparing Skill-premiums in Colonial Africa and Asia
By: Ewout Frankema and Marlous van Waijenburg
Historical research on the race between education and technology has focused on the West but barely touched upon ‘the rest’. A new occupational wage database for 50 African and Asian economies allows us to compare long-run patterns in skill premiums across the colonial... View Details
- July 2023 (Revised October 2024)
- Case
Revenue Recognition at Stride Funding: Making Sense of Revenues for a Fintech Startup
By: Paul M. Healy and Jung Koo Kang
The case explores the challenges of revenue recognition and financial reporting for Stride Funding (Stride), a fintech startup that has disrupted the student loan market. Stride leveraged proprietary machine learning and financial models to underwrite alternative... View Details
- July 2023 (Revised May 2024)
- Case
Vytal: Packaging-as-a-Service
By: George Serafeim, Michael W. Toffel, Lena Duchene and Daniela Beyersdorfer
The Germany-based startup Vytal operated the largest digital-native reusable packaging-as-a-service network globally, having raised nearly €15 million, established a large network of restaurant partners, and prevented the use of millions of single-use take-out food... View Details
Keywords: Climate Risk; Digital; Platform Strategies; Data; Packaging; Sustainability; Start-up; Startup; Entrepreneur; Impact; Circular; Growth Strategy; Innovation; Environmental Sustainability; Innovation and Invention; Business Growth and Maturation; Growth and Development Strategy; Business Startups; Resource Allocation; Risk Management; Adoption; Strategy; Performance Productivity; Service Delivery; Service Operations; Supply Chain; Distribution; Entrepreneurship; Climate Change; Green Technology Industry; Service Industry; Retail Industry; Germany; Europe