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- Faculty Publications (224)
- February 2022
- Teaching Note
Linda Oubré at Whittier College
By: Debora L. Spar and Julia Comeau
Teaching Note for HBS Case No. 721-057. View Details
- December 2021 (Revised May 2025)
- Case
Bed Bath & Beyond: The New Strategy to Drive Shareholder Value
By: Benjamin C. Esty and Daniel W. Fisher
At one time, Bed Bath & Beyond was one of the most successful specialty retailers in the United States—its growth and profit margins far exceeded both peer retailers in the home goods market as well as many other discount retailers. But in 2014, its stock price peaked,... View Details
Keywords: Competitive Strategy; Competitive Advantage; Value Creation; Diversification; Corporate Governance; Leading Change; Performance Evaluation; Valuation; Investment Activism; Retail Industry; Consumer Products Industry; United States
Esty, Benjamin C., and Daniel W. Fisher. "Bed Bath & Beyond: The New Strategy to Drive Shareholder Value." Harvard Business School Case 722-408, December 2021. (Revised May 2025.)
- October 2021
- Case
Yildiz Holding's Corporate Strategy: Managing Diversification for Growth
By: Juan Alcácer and Esel Çekin
The case opens in May 2018 with Nurtaç Ziyal Afridi, chief strategy and growth officer of Yıldız Holding, a Turkish conglomerate, reflecting on the group’s diversification journey. In ten years, the group had achieved a remarkable growth through diversification: seven... View Details
Keywords: Strategy; Diversification; Growth Management; Mergers and Acquisitions; Global Strategy; Restructuring; Food and Beverage Industry; North America; United Kingdom; Turkey; Asia
Alcácer, Juan, and Esel Çekin. "Yildiz Holding's Corporate Strategy: Managing Diversification for Growth." Harvard Business School Case 722-366, October 2021.
- 2021
- Working Paper
Saving for a Dry Day: Coal, Dams, and the Energy Transition
By: Michele Fioretti and Jorge Tamayo
Renewable generation creates a tradeoff between current and future energy production as generators produce energy by releasing previously stored resources. Studying the Colombian market, we find that diversified firms strategically substitute fossil fuels for... View Details
Keywords: Energy Generation; Renewable Energy; Production; Green Technology Industry; Energy Industry; Colombia
Fioretti, Michele, and Jorge Tamayo. "Saving for a Dry Day: Coal, Dams, and the Energy Transition." Harvard Business School Working Paper, No. 22-016, August 2021.
- August 2021
- Case
BYJU’S: EdTech Giant Investing in Brick and Mortar
By: John J-H Kim and Rachna Tahilyani
The founder and CEO of BYJU’S, India’s largest edtech firm and one of the world’s most valuable edtech companies, is considering acquiring Aakash Educational Services (Aakash), one of India’s largest brick-and-mortar test-prep firms, for $1 billion. Is this a good... View Details
Keywords: Edtech; Business Strategy; Diversification; Investment; Acquisition; Education Industry; Asia; India; United States
Kim, John J-H, and Rachna Tahilyani. "BYJU’S: EdTech Giant Investing in Brick and Mortar." Harvard Business School Case 322-032, August 2021.
- May 2021
- Case
Inclusive Innovation at Mass General Brigham
By: Katherine Baldiga Coffman and Olivia Hull
Massachusetts General Brigham (MGB) Chief Innovation Officer Christopher Coburn had overseen a period of exciting transformation and growth in healthcare innovation at MGB. In November 2019, the health system was the largest recipient of National Institutes of Health... View Details
Keywords: Inclusion; Innovation; Invention; Gender; Business Startups; Investment Funds; Private Equity; Health Care and Treatment; Innovation Strategy; Technological Innovation; Intellectual Property; Copyright; Patents; Research; Research and Development; Diversification; Technology; Health Industry; Massachusetts; Boston
Coffman, Katherine Baldiga, and Olivia Hull. "Inclusive Innovation at Mass General Brigham." Harvard Business School Case 921-006, May 2021.
- April 2021
- Case
Coca-Cola: Preparing for the Next 100 Years
By: Cynthia A. Montgomery and James Weber
In early 2020, James Quincey, the 14th chair of the 133-year old The Coca-Cola Company, was in the midst of a years-long transformation of Coca-Cola from being the leading carbonated soft drink (CSD) beverage company into a total beverage company. The company’s... View Details
Keywords: Strategy; Diversification; Change Management; Organizational Culture; Environmental Sustainability; Food and Beverage Industry; United States
Montgomery, Cynthia A., and James Weber. "Coca-Cola: Preparing for the Next 100 Years." Harvard Business School Case 721-359, April 2021.
- March 2021
- Case
Astralis Group: Determining a Brand Strategy
By: Benjamin C. Esty, Mette Fuglsang Hjortshoej and Emilie Billaud
After launching a Danish esports company in July 2019, and going public in December 2019 with multiple brands associated with different games, the Astralis leadership team was contemplating a shift to a single, corporate brand. While the original arguments for... View Details
Keywords: Brand Strategy; Esports; Video Games; Corporate Scope; Positioning; Ecosystem; Brands and Branding; Strategy; Business Ventures; Business Startups; Entrepreneurship; Ethics; Sports; Competitive Strategy; Value Creation; Diversification; Games, Gaming, and Gambling; Sports Industry; Entertainment and Recreation Industry; Denmark; Europe
Esty, Benjamin C., Mette Fuglsang Hjortshoej, and Emilie Billaud. "Astralis Group: Determining a Brand Strategy." Harvard Business School Case 721-382, March 2021.
- February 2021
- Case
Yellow Digital Retailers: Providing Solar Electricity to Transform Rural Africa
By: Lynda M. Applegate, Frank V. Cespedes and Michael Norris
In 2020, Mike Heyink and Maya Stewart, co-founders of the Pay-as-you-Go Solar company Yellow were considering how to grow their startup. They had achieved some success in their first market, Malawi, and had recently entered Uganda, where business was slower. What did... View Details
Keywords: Solar Energy; Business Model; Business Startups; Developing Countries and Economies; Alternative Energy; Renewable Energy; Social Entrepreneurship; Green Technology; Salesforce Management; Diversification; Expansion; Energy Industry; Africa; South Africa; Malawi; Uganda
Applegate, Lynda M., Frank V. Cespedes, and Michael Norris. "Yellow Digital Retailers: Providing Solar Electricity to Transform Rural Africa." Harvard Business School Case 821-041, February 2021.
- January 2021 (Revised March 2021)
- Case
Jumia's Path to Profitability
By: Ramon Casadesus-Masanell, Pippa Tubman Armerding and Gamze Yucaoglu
The case opens in September 2019 as Sacha Poignonnec and Jeremy Hodara, co-founders and co-CEOs of Jumia, the leading Pan-African e-commerce platform, are contemplating the company’s path to profitability in the aftermath of a fragile investor sentiment, as the company... View Details
Keywords: Retail; Business Models; Business Model; Business Startups; Emerging Markets; For-Profit Firms; Strategy; Digital Platforms; Information Technology; Technology Adoption; Value Creation; Globalization; Entrepreneurship; Competition; Expansion; Logistics; Profit; Resource Allocation; Diversification; Corporate Strategy; Retail Industry; Technology Industry; Africa
Casadesus-Masanell, Ramon, Pippa Tubman Armerding, and Gamze Yucaoglu. "Jumia's Path to Profitability." Harvard Business School Case 721-355, January 2021. (Revised March 2021.)
- October 2020 (Revised March 2021)
- Supplement
Migros Turkey: Scaling Online Operations During COVID-19 (C)
By: Antonio Moreno and Gamze Yucaoglu
The case opens in August 2020 as Ozgur Tort and Mustafa Bartin, CEO and chief large-format and online retail officer of Migros Ticaret A.S. (Migros), Turkey’s oldest and one of its largest supermarket chains, are navigating Migros through COVID-19 and the unprecedented... View Details
Keywords: Business Model; Strategy; Digital Platforms; Information Technology; Technology Adoption; Value Creation; Globalization; Competition; Expansion; Logistics; Profit; Resource Allocation; Diversification; Corporate Strategy; Crisis Management; Health Pandemics; Strategic Planning; Food and Beverage Industry; Turkey
Moreno, Antonio, and Gamze Yucaoglu. "Migros Turkey: Scaling Online Operations During COVID-19 (C)." Harvard Business School Supplement 621-062, October 2020. (Revised March 2021.)
- July 2020 (Revised January 2021)
- Case
Pattern Brands
By: Sunil Gupta, Elie Ofek and Julia Kelley
In March 2020, direct-to-consumer (DTC) company Pattern Brands needed to decide how to allocate resources across its different brands. Pattern Co-Founders Nick Ling and Emmett Shine hoped to avoid the pitfalls faced by some DTC companies—such as inability to scale and... View Details
Keywords: Direct-to-consumer; Brands and Branding; Marketing Channels; Marketing Strategy; Product Marketing; Product Launch; Product Positioning; Business Model; Business Startups; Growth and Development Strategy; Demand and Consumers; Business Strategy; Diversification; Competitive Advantage; Consumer Products Industry; Retail Industry; North and Central America; United States; New York (city, NY); New York (state, US)
Gupta, Sunil, Elie Ofek, and Julia Kelley. "Pattern Brands." Harvard Business School Case 521-009, July 2020. (Revised January 2021.)
- January 2020
- Case
Hurtigruten: Sailing into Warm Water?
By: Jan W. Rivkin and Kerry Herman
As this case opens in 2019, CEO Daniel Skjeldam and his team have successfully reinvigorated Hurtigruten, a storied but struggling Norwegian ferry and cruise operator, and have established it as the leading provider of polar expedition cruises. They now face a critical... View Details
Keywords: Relative Cost Analysis; Market Attractiveness; Diversification; Decision Making; Expansion; Tourism Industry; Norway
Rivkin, Jan W., and Kerry Herman. "Hurtigruten: Sailing into Warm Water?" Harvard Business School Case 720-410, January 2020.
- November 2019
- Supplement
United Technologies Corp.: Are the Parts Worth More Than the Whole?
By: Benjamin C. Esty and Daniel Fisher
After spending more than 50 years creating a diversified industrial conglomerate that Fortune Magazine described as “arguably the most profitable conglomerate in America” in 2014, UTC’s CEO Greg Hayes was under pressure from activist investors (Dan Loeb and Bill... View Details
Keywords: Corporate Strategy; Business Conglomerates; Financial Management; Corporate Governance; Organizational Structure; Diversification; Valuation; Investment Activism; Financial Strategy; Investment Funds; Value Creation; Aerospace Industry; Electronics Industry; Industrial Products Industry; United States
- October 2019
- Case
GRIT Fitness
By: Lynda M. Applegate and Olivia Hull
In December 2018, GRIT Fitness was a growing chain of boutique fitness studios offering a variety of workout classes, including weightlifting, high intensity interval training, and cardio dance. With 400 members and three Dallas studios, CEO Brittani Rettig believed... View Details
Keywords: Entrepreneurship; Business Startups; Mission and Purpose; Corporate Strategy; Customer Focus and Relationships; Forecasting and Prediction; Business Plan; Trends; Experience and Expertise; Talent and Talent Management; Training; Health; Selection and Staffing; Leadership Style; Leadership Development; Management Style; Management Teams; Brands and Branding; Organizational Culture; Organizational Structure; Motivation and Incentives; Sports; Competition; Diversification; Expansion; Value Creation; Health Industry; Sports Industry; Texas
Applegate, Lynda M., and Olivia Hull. "GRIT Fitness." Harvard Business School Case 820-016, October 2019.
- August 2019 (Revised February 2020)
- Case
New Hope Liuhe: Building an Integrated Agri-Food Business
By: Forest L. Reinhardt, Shu Lin, Natalie Kindred and Nancy Hua Dai
In October 2018, LIU Chang (Angela), chairman of Beijing-based New Hope Liuhe (NHL), was considering the strategy of the firm. With $9 billion in sales and a presence in nearly 20 countries, NHL was China’s largest animal feed producer and a major pork and poultry... View Details
Keywords: Strategy; Corporate Strategy; Food; Agribusiness; Expansion; Diversification; Growth Management; Consumer Behavior; Change Management; Entrepreneurship; Organizational Structure; Organizational Change and Adaptation; Government and Politics; Animal-Based Agribusiness; Transformation; Volatility; Business Cycles; Goods and Commodities; Supply Chain; Product; Agriculture and Agribusiness Industry; Food and Beverage Industry; China; Asia
Reinhardt, Forest L., Shu Lin, Natalie Kindred, and Nancy Hua Dai. "New Hope Liuhe: Building an Integrated Agri-Food Business." Harvard Business School Case 720-009, August 2019. (Revised February 2020.)
- August 2019
- Supplement
Rand Fishkin at Moz (B)
Supplements the (A) case. View Details
Keywords: Startups; Scaling; Entrepreneurship; Failure; Business Startups; Diversification; Growth Management
Eisenmann, Thomas R. "Rand Fishkin at Moz (B)." Harvard Business School Supplement 820-003, August 2019.
- August 2019
- Supplement
Rand Fishkin at Moz (C)
Supplements the (A) case. View Details
Keywords: Startups; Scaling; Entrepreneurship; Failure; Business Startups; Diversification; Growth Management
Eisenmann, Thomas R. "Rand Fishkin at Moz (C)." Harvard Business School Supplement 820-004, August 2019.
- August 2019 (Revised March 2023)
- Case
Rand Fishkin at Moz (A)
In 2016, senior management at Moz, a venture capital–backed startup providing software tools for digital marketing professionals, must decide how to address a looming cash flow crisis precipitated by failed efforts to broaden its product line. Seattle-based Moz had... View Details
Keywords: Startups; Scaling; Entrepreneurship; Failure; Business Startups; Diversification; Growth Management; Technology Industry
Eisenmann, Thomas R. "Rand Fishkin at Moz (A)." Harvard Business School Case 820-002, August 2019. (Revised March 2023.)
- August 2019
- Article
When and How to Diversify—A Multicategory Utility Model for Personalized Content Recommendation
By: Yicheng Song, Nachiketa Sahoo and Elie Ofek
Sometimes we desire change, a break from the same or an opportunity to fulfill different aspects of our needs. Noting that consumers seek variety, several approaches have been developed to diversify items recommended by personalized recommender systems. However,... View Details
Keywords: Recommender Systems; Personalization; Recommendation Diversity; Variety Seeking; Collaborative Filtering; Consumer Utility Models; Digital Media; Clickstream Analysis; Learning-to-rank; Consumer Behavior; Media; Customization and Personalization; Strategy; Mathematical Methods
Song, Yicheng, Nachiketa Sahoo, and Elie Ofek. "When and How to Diversify—A Multicategory Utility Model for Personalized Content Recommendation." Management Science 65, no. 8 (August 2019): 3737–3757.