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January 2023
Teaching Note

Duolingo: Teaching Languages to the Masses

By: Youngme Moon

Teaching Note for HBS Case 323-016. At the time the case is written, Duolingo is the most popular language learning service in the world. The company has more than 40 million monthly active users, and the company’s total annual revenue has reached $250 million a year.... View Details

Keywords: Marketing; Marketing Strategy; Customer Relationship Management; Acquisition; Retention; Innovation and Invention

January 2023 (Revised June 2024)
Case

Elon Musk at Tesla

By: George Serafeim and Amram Migdal

This case gives an overview of Elon Musk’s career arc through the lens of the 2003 founding of Tesla and its growth through 2022. Background information is included on Tesla’s unique strategic decisions, its operational and reputational struggles and successes, and the... View Details

January 2023 (Revised May 2023)
Case

Steve Jobs: Changing the World

By: Robert Simons and Shirley Sun

This case traces the life of Steve Jobs who throughout his career flaunted convention and chose an unusual path to success. The case describes how Jobs, as young man, acquired an appreciation for aesthetics and the liberal arts, but was also quick to recognize and... View Details

Keywords: Entrepreneurship; Technology; Business Startups; Personal Characteristics; Leadership Style; Innovation; Work-life Balance; Innovation Leadership; Power and Influence; Success; Information Technology Industry; United States

2023
Working Paper

Achieving Universal Health Insurance Coverage in the United States: Addressing Market Failures or Providing a Social Floor?

By: Katherine Baicker, Amitabh Chandra and Mark Shepard

The United States spends substantially more on health care than most developed countries, yet leaves a greater share of the population uninsured. We suggest that incremental insurance expansions focused on addressing market failures will propagate inefficiencies and... View Details

Keywords: Public Sector; Insurance; Health Care and Treatment; Policy; Innovation and Invention

December 2022
Case

To Feed the Planet: Juan Luciano at ADM

By: Joshua D. Margolis, David E. Bell, Damien McLoughlin, Stacy Straaberg and James Weber

In December 2022, Juan Luciano, Chairman and CEO of agribusiness and nutrition giant ADM, considered the next phase of the historic company’s future. Beginning in 2011 when he joined as COO and moving into his tenure as CEO in 2015, Luciano led a transformation of ADM... View Details

December 2022
Technical Note

Risks and Opportunities from the Transition to a Low Carbon Economy: A Business Analysis Framework

By: George Serafeim

The transition to a low carbon economy introduces many risks and opportunities for businesses. Risks emerge from regulatory actions, such as carbon taxes and cap and trade systems, technological innovation that develop alternatives for customers making existing... View Details

Keywords: Risk Assessment; Opportunities; Environmental Sustainability; Carbon Footprint; Risk Management; Competitive Dynamics; Business Analysis; Climate Change; Accounting; Finance; Valuation; Business and Shareholder Relations; Technological Innovation; Transition; Product Positioning; Renewable Energy; Analysis

December 2022 (Revised August 2023)
Case

Circles.Life at a Crossroads of Growth

By: Juan Alcácer and Adina Wong

In June 2022, the founders of Singapore mobile operator Circles.Life had a crucial decision to make. Circles.Life developed a new business model in mobile telecommunications—a digital telco—built around its proprietary operating system. After expanding its brand in... View Details

Keywords: Business Model; Decisions; Technological Innovation; Applications and Software; Business Strategy; Telecommunications Industry; Singapore

December 2022 (Revised May 2023)
Case

Iberdrola: Leading the Energy Revolution

By: Juan Alcácer and Emer Moloney

At the end of 2019, Ignacio Galán, the Chairman and CEO of the world's third largest utility, Iberdrola, reflected on his almost 20 years at the company. He managed a portfolio of three very different businesses, each with their own specific opportunities and... View Details

December 2022 (Revised January 2023)
Case

Cann: High Hopes for Cannabis Infused Beverages

By: Ayelet Israeli and Anne V. Wilson

Founded in 2018 by Jake Bullock and Luke Anderson, Cann sold “social tonics,” or cannabis-infused beverages. By 2022, the company had several notable celebrity investors and talent partners, had sold over 10 million beverages to consumers, was distributing in six... View Details

December 2022
Article

I Don't 'Recall': The Decision to Delay Innovation Launch to Avoid Costly Product Failure

By: Byungyeon Kim, Oded Koenigsberg and Elie Ofek

Innovations embody novel features or cutting-edge components aimed at delivering desired customer benefits. Oftentimes, however, we observe the need to recall new products shortly after their introduction. Indeed, a firm may rush an innovation to market in an attempt... View Details

Keywords: Innovation Management; Innovation And Strategy; Product Development Strategy; Product Introduction; Quality Control; Product Recalls; Game Theory; Market Timing; Innovation Strategy; Product Launch; Product Development

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Article

Innovations in Retail Operations: Thirty Years of Lessons from Production and Operations Management

By: Marshall Fisher and Ananth Raman

We review papers published in Production and Operations Management (POM) during its thirty-year history that deal with retail operations issues with an empirical approach. The papers span a range of issues, from traditional ones like forecasting and inventory... View Details

Keywords: RFID; Innovation and Invention; Technology Adoption; Operations; E-commerce; Strategy; Retail Industry

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2021
Working Paper

The Contribution of High-Skilled Immigrants to Innovation in the United States

By: Shai Bernstein, Rebecca Diamond, Abhisit Jiranaphawiboon, Timothy McQuade and Beatriz Pousada

We characterize the contribution of immigrants to US innovation, both through their direct productivity as well as through their indirect spillover effects on their native collaborators. To do so, we link patent records to a database containing the first five digits of... View Details

Keywords: Innovation; Economic Growth; Immigrants; Innovation and Invention; Collaborative Innovation and Invention; Patents; Innovation Strategy

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November 2022 (Revised March 2023)
Supplement

JUUL and the Vaping Revolution: A 2022 Update

By: Michael W. Toffel and Sarah Mehta

This slide deck provides a brief update (2019-2022) on the rise and fall of JUUL Labs, the maker of the popular JUUL e-cigarette. View Details

November 2022 (Revised March 2023)
Supplement

JUUL and the Vaping Revolution: A 2022 Update

By: Michael W. Toffel and Sarah Mehta

This case provides a brief update (2019-2022) on the rise and fall of JUUL Labs, the maker of the popular JUUL e-cigarette. View Details

November 2022
Case

Ajax Health: A New Model for Medical Technology Innovation

By: Regina E. Herzlinger and Ben Creo

This case teaches key success factors for both startup and established MedTech firms. It examines how to structure a firm to maximize innovation and financial returns with organizational structures that better align the incentives for the different skill sets... View Details

Keywords: Business Startups; Success; Innovation Strategy; Mergers and Acquisitions; Market Entry and Exit; Financial Strategy; Business Model; Partners and Partnerships; Entrepreneurship; Private Equity; Technology Industry; Medical Devices and Supplies Industry

November 2022 (Revised April 2025)
Teaching Note

Driving Decarbonization at BMW

By: Shirley Lu, George Serafeim and Michael W. Toffel

Teaching note in support of the case "Driving Decarbonization at BMW" (HBS No. 123-008) View Details

November 2022 (Revised June 2023)
Case

UGG Steps into the Metaverse

By: Shunyuan Zhang, Sharon Joseph, Sunil Gupta and Julia Kelley

In the fall of 2022, boot maker UGG and its parent company, Deckers, were working to position the brand in the nascent but fast growing metaverse. The metaverse, the online realm that individual users could navigate as digital avatars, was becoming more commercialized,... View Details

Keywords: Metaverse; Digital Marketing; Innovation and Invention; Marketing Channels; Marketing Strategy; Social Marketing; Internet and the Web; Apparel and Accessories Industry; Fashion Industry; Information Technology Industry; United States

November 2022
Case

Para: Pay Transparency and Gig Drivers' Rights

By: Christopher Stanton and George Gonzalez

The case presents the founding vision and early days of a young startup that seeks to empower delivery drivers with tools and transparency. The company's flagship mobile app has been taken up by tens of thousands of delivery drivers across major U.S. cities who use it... View Details

Keywords: Gig Workers; Corporate Entrepreneurship; Entrepreneurship; Business Startups; Applications and Software; Disruptive Innovation; Compensation and Benefits; Technology Industry; San Francisco

November 2022
Case

Arcos Dorados’ Quest for the Digitalization of Last-Mile Delivery in Colombia

By: Jorge Tamayo, Jenyfeer Martinez Buitrago and Mariana Cal

In 2018, Francisco Staton, Managing Director of Arcos Dorados in Colombia had to decide on the company’s strategy to expand its food ordering and delivery business in the country. Arcos Dorados stood as McDonald’s largest independent franchisee, and Colombia was one of... View Details