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      • May 2025
      • Teaching Note

      Bridj and the Business of Urban Mobility (B): A New Model in Kansas City

      By: Rosabeth Moss Kanter and Jonathan Cohen
      This Teaching Note helps instructors teach students the HBS Case, Bridj and the Business of Urban Mobility (B): A New Model in Kansas City. In late 2016, Bridj was expanding its digital platform to help address urban mobility problems faced by cities across the country... View Details
      Keywords: App Development; Innovation; Stakeholder Engagement; Collaboration; Ride-sharing; Entrenchment; Digital; Transportation; Urban Development; Disruption; Business Startups; Digital Platforms; Growth and Development Strategy; Business and Stakeholder Relations; Partners and Partnerships; Expansion
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      Kanter, Rosabeth Moss, and Jonathan Cohen. "Bridj and the Business of Urban Mobility (B): A New Model in Kansas City." Harvard Business School Teaching Note 325-125, May 2025.
      • March 2024 (Revised July 2024)
      • Case

      WeightWatchers: Promoting Weight Health

      By: Ranjay Gulati, Cynthia A. Montgomery, Ashley Whillans, Allison Ciechanover and Emily Grandjean
      In December 2023, the 60-year-old weight management industry stalwart WeightWatchers announced the launch of WeightWatchers Clinic, which incorporated GLP-1s , a new class of prescription weight-loss medications, into the company’s portfolio of products and mobile app... View Details
      Keywords: Business Strategy; Competitive Strategy; Resource Allocation; Diversification; Leadership; Growth and Development Strategy; Technology Industry; Health Industry; Pharmaceutical Industry; United States; New York (city, NY)
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      Gulati, Ranjay, Cynthia A. Montgomery, Ashley Whillans, Allison Ciechanover, and Emily Grandjean. "WeightWatchers: Promoting Weight Health." Harvard Business School Case 424-029, March 2024. (Revised July 2024.)
      • 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
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      Stanton, Christopher, and George Gonzalez. "Para: Pay Transparency and Gig Drivers' Rights." Harvard Business School Case 823-072, November 2022.
      • April 2022
      • Teaching Note

      Banorte Móvil: Data-Driven Mobile Growth

      By: Ayelet Israeli and Carla Larangeira
      In mid-2019, Carlos Hank was deliberating over the results for Banorte Móvil—the mobile application for Banorte, Mexico’s most profitable and second-largest financial institution. Hank, who had been appointed as Banorte´s Chairman of the Board in January 2015, had... View Details
      Keywords: Data Analytics; Customer Lifetime Value; Financial Institutions; Mobile and Wireless Technology; Growth and Development Strategy; Customers; Technology Adoption; Communication Strategy; Banking Industry; Mexico; Latin America
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      Israeli, Ayelet, and Carla Larangeira. "Banorte Móvil: Data-Driven Mobile Growth." Harvard Business School Teaching Note 522-095, April 2022.
      • February 2022 (Revised February 2023)
      • Case

      TikTok in 2020: Super App or Supernova? (Abridged)

      By: Jeffrey F. Rayport, Dan Maher and Dan O'Brien
      TikTok’s parent company, ByteDance, was launched in 2012 around a simple idea—helping users entertain themselves on their smartphones while on the Beijing Subway. In less than a decade, it had become one of the world’s most valuable private companies, with investors... View Details
      Keywords: Digital Platform; Artificial Intelligence; AI; Mobile App; Mobile App Industry; Mobile and Wireless Technology; Market Entry and Exit; Brands and Branding; Growth and Development Strategy; China
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      Rayport, Jeffrey F., Dan Maher, and Dan O'Brien. "TikTok in 2020: Super App or Supernova? (Abridged)." Harvard Business School Case 822-112, February 2022. (Revised February 2023.)
      • 30 Nov 2021
      • Interview

      TikTok: Super App or Supernova?

      By: Jeffrey F. Rayport and Brian Kenny
      TikTok’s parent company, ByteDance, was launched in 2012 around the simple idea of helping users entertain themselves on their smartphones while on the Beijing Subway. By May 2020, TikTok operated in 155 countries and had roughly 1 billion monthly active users, placing... View Details
      Keywords: Apps; Artificial Intelligence; Business Startups; Mobile and Wireless Technology; Business Model; Digital Platforms; Growth and Development Strategy; AI and Machine Learning; Social Media
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      "TikTok: Super App or Supernova?" Cold Call (podcast), Harvard Business Review Group, November 30, 2021. (Interviewed by Brian Kenny.)
      • October 2021
      • Case

      (180) Days of Quibi

      By: David J. Collis and Terrence Shu
      Mobile streaming app Quibi was ready to take the entertainment world by storm at its April 2020 launch. Backed by $1.75 billion, influential investors from Hollywood to Wall Street eagerly anticipated early success for this brainchild of Meg Whitman, former CEO of... View Details
      Keywords: Corporate Strategy; Strategy; Business Model; Business Startups; Mobile Technology
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      Collis, David J., and Terrence Shu. "(180) Days of Quibi." Harvard Business School Case 722-377, October 2021.
      • September 2021 (Revised December 2021)
      • Case

      Telepass: From Tolling to Mobility Platform

      By: Chiara Farronato, Stefano Denicolai and Sarah Mehta
      Telepass, until very recently the sole processor of electronic toll payments on Italy’s highways, has ambitions beyond tolling. Since the mid-2010s, the company has been expanding into adjacent services. In 2017, Telepass launched TelepassPay—a mobile payment... View Details
      Keywords: Mobile Payment; App; Mobility Services; Analysis; Change; Change Management; Transformation; Transition; Innovation and Invention; Strategy; Information Technology; Mobile and Wireless Technology; Transportation; Transportation Networks; Value; Value Creation; Consumer Behavior; Technology Industry; Transportation Industry; Insurance Industry; Europe; Italy; Milan
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      Farronato, Chiara, Stefano Denicolai, and Sarah Mehta. "Telepass: From Tolling to Mobility Platform." Harvard Business School Case 622-011, September 2021. (Revised December 2021.)
      • September 2021 (Revised December 2021)
      • Case

      Telepass: From Tolling to Mobility Platform (Abridged)

      By: Chiara Farronato, Stefano Denicolai and Sarah Mehta
      Telepass, until very recently the sole processor of electronic toll payments on Italy’s highways, has ambitions beyond tolling. Since the mid-2010s, the company has been expanding into adjacent services. In 2017, Telepass launched TelepassPay—a mobile payment... View Details
      Keywords: Mobile Payment; App; Mobility Services; Analysis; Change; Change Management; Transformation; Transition; Innovation and Invention; Strategy; Information Technology; Mobile and Wireless Technology; Transportation; Transportation Networks; Value; Value Creation; Technology Industry; Transportation Industry; Insurance Industry; Europe; Italy; Milan
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      Farronato, Chiara, Stefano Denicolai, and Sarah Mehta. "Telepass: From Tolling to Mobility Platform (Abridged)." Harvard Business School Case 622-050, September 2021. (Revised December 2021.)
      • August 2021
      • Case

      Wymsee

      By: Julia Austin, Sarah Mehta and Tom Quinn
      Wymsee was a company that aimed to develop a mobile application (app) that would allow television audience members to identify and purchase clothing or accessories worn by characters in the program they were watching, with the Wymsee founders taking a percentage of... View Details
      Keywords: Business Model; Business Plan; Business Startups; Film Entertainment; Television Entertainment; Technological Innovation; Knowledge Acquisition; Product Positioning; Opportunities; Adaptation; Mobile Technology; Entertainment and Recreation Industry; Motion Pictures and Video Industry; Technology Industry; United States; New York (city, NY)
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      Austin, Julia, Sarah Mehta, and Tom Quinn. "Wymsee." Harvard Business School Case 822-002, August 2021.
      • July 2021
      • Case

      A Close Shave at Squire

      By: Jeffrey J. Bussgang, Zoë B. Cullen, William R. Kerr, Benjamin N. Roth and Michael Norris
      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
      Keywords: Business Startups; Entrepreneurship; Venture Capital; Private Equity; Mobile and Wireless Technology; Applications and Software; Growth and Development Strategy; Health Pandemics; Beauty and Cosmetics Industry; Technology Industry; New York (city, NY); San Francisco
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      Bussgang, Jeffrey J., Zoë B. Cullen, William R. Kerr, Benjamin N. Roth, and Michael Norris. "A Close Shave at Squire." Harvard Business School Case 821-073, July 2021.
      • July 2021 (Revised July 2022)
      • Case

      Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care

      By: Robert S. Kaplan, Navraj S. Nagra and Syed S. Shehab
      Dr. Andrea Pusic, breast cancer reconstruction surgeon, wants to extend outcomes measurement beyond traditional surgical metrics of infections, complications, and survival rates. The case describes her development of a new mobile phone app, which collects patients’... View Details
      Keywords: Health Care and Treatment; Outcome or Result; Cost Management; Activity Based Costing and Management; Mobile and Wireless Technology; Health Testing and Trials; Surveys; Health Industry; Boston
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      Kaplan, Robert S., Navraj S. Nagra, and Syed S. Shehab. "Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care." Harvard Business School Case 122-010, July 2021. (Revised July 2022.)
      • May 2021 (Revised February 2024)
      • Teaching Note

      THE YES: Reimagining the Future of E-Commerce with Artificial Intelligence (AI)

      By: Ayelet Israeli and Jill Avery
      THE YES, a multi-brand shopping app launched in May 2020 offered a new type of buying experience for women’s fashion, driven by a sophisticated algorithm that used data science and machine learning to create and deliver a personalized store for every shopper, based on... View Details
      Keywords: Data; Data Analytics; Artificial Intelligence; AI; AI Algorithms; AI Creativity; Fashion; Retail; Retail Analytics; E-Commerce Strategy; Platform; Platforms; Big Data; Preference Elicitation; Predictive Analytics; App Development; "Marketing Analytics"; Advertising; Mobile App; Mobile Marketing; Apparel; Online Advertising; Referral Rewards; Referrals; Female Ceo; Female Entrepreneur; Female Protagonist; Analytics and Data Science; Analysis; Creativity; Marketing Strategy; Brands and Branding; Consumer Behavior; Demand and Consumers; Forecasting and Prediction; Marketing Channels; Digital Marketing; Internet and the Web; Mobile and Wireless Technology; AI and Machine Learning; E-commerce; Digital Platforms; Fashion Industry; Retail Industry; Apparel and Accessories Industry; Consumer Products Industry; United States
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      Israeli, Ayelet, and Jill Avery. "THE YES: Reimagining the Future of E-Commerce with Artificial Intelligence (AI)." Harvard Business School Teaching Note 521-097, May 2021. (Revised February 2024.)
      • May 2021 (Revised May 2022)
      • Case

      Headspace vs. Calm: A Mindful Competition

      By: Ayelet Israeli and Anne Wilson
      By 2021, the mindfulness app wars reached their apex. Over 2,000 meditation apps were available to consumers, but two apps, Headspace and Calm, dominated the space, jointly holding about 70% of the total market. Headspace had established itself as the approachable... View Details
      Keywords: Marketing Communication; Integrated Strategy; Brand; Brand & Product Management; Brand Communication; Brand Differentiation; Brand Building; Brand Management; E-Commerce Strategy; Ecommerce; App; App Development; Applications; COVID; COVID-19; Pandemic; Pricing; Pricing Strategy; Subscription Model; Subscription; Partnerships; Strategic Partnerships; B2B Vs. B2C; B2B; Health & Wellness; Wellbeing; Digitization; Commoditization; Mobile App; Mobile App Industry; Mobile Healthcare; Mobile Marketing; Digital Brand; Digital Health; Consumer Health; Apps; Online Business; Online Competition; Online Community; Online Entertainment; Entertainment And Leisure; Meditation; Marketing; Marketing Communications; Brands and Branding; Price; Strategy; Competition; Competitive Strategy; Competitive Advantage; Partners and Partnerships; Health; Well-being; Mobile and Wireless Technology; Communication; Communication Strategy; Disruption; Consumer Behavior; Digital Marketing; E-commerce; Applications and Software; Health Industry; Technology Industry; Communications Industry; United States; North America; United Kingdom
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      Israeli, Ayelet, and Anne Wilson. "Headspace vs. Calm: A Mindful Competition." Harvard Business School Case 521-102, May 2021. (Revised May 2022.)
      • February 2021
      • Case

      Apple: Privacy vs. Safety (A)

      By: Henry McGee, Nien-hê Hsieh, Sarah McAra and Christian Godwin
      In 2015, Apple CEO Tim Cook debuted the iPhone 6S with enhanced security measures that enflamed a debate on privacy and public safety around the world. The iPhone 6S, amid a heightened concern for privacy following the 2013 revelation of clandestine U.S. surveillance... View Details
      Keywords: Iphone; Encryption; Data Privacy; Customers; Customer Focus and Relationships; Decision Making; Ethics; Values and Beliefs; Globalized Firms and Management; Government and Politics; National Security; Law; Law Enforcement; Leadership; Markets; Safety; Social Issues; Corporate Social Responsibility and Impact; Civil Society or Community; Mobile and Wireless Technology; Technology Industry; Consumer Products Industry; Telecommunications Industry; Electronics Industry; United States; China; Hong Kong
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      McGee, Henry, Nien-hê Hsieh, Sarah McAra, and Christian Godwin. "Apple: Privacy vs. Safety (A)." Harvard Business School Case 321-004, February 2021.
      • February 2021 (Revised March 2022)
      • Case

      TikTok in 2020: Super App or Supernova?

      By: Jeffrey F. Rayport, Dan Maher and Dan O'Brien
      TikTok’s parent company, ByteDance, was launched in 2012 around a simple idea – helping users entertain themselves on their smartphones while on the Beijing Subway. In less than a decade, it had become one of the world’s most valuable private companies, with investors... View Details
      Keywords: Business Model; Business Startups; Business Organization; Change Management; Disruption; Cross-Cultural and Cross-Border Issues; Global Strategy; Health Pandemics; Innovation Strategy; Growth and Development Strategy; Growth Management; Brands and Branding; Marketing Strategy; Marketing Channels; Network Effects; Digital Platforms; Product Design; Product Development; Partners and Partnerships; Opportunities; Social Issues; Mobile and Wireless Technology; Internet and the Web; Value Creation; United States; China
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      Rayport, Jeffrey F., Dan Maher, and Dan O'Brien. "TikTok in 2020: Super App or Supernova?" Harvard Business School Case 821-087, February 2021. (Revised March 2022.)
      • January 2021 (Revised March 2021)
      • Case

      THE YES: Reimagining the Future of E-Commerce with Artificial Intelligence (AI)

      By: Jill Avery, Ayelet Israeli and Emma von Maur
      THE YES, a multi-brand shopping app launched in May 2020 offered a new type of buying experience for women’s fashion, driven by a sophisticated algorithm that used data science and machine learning to create and deliver a personalized store for every shopper, based on... View Details
      Keywords: Data; Data Analytics; Artificial Intelligence; AI; AI Algorithms; AI Creativity; Fashion; Retail; Retail Analytics; E-Commerce Strategy; Platform; Platforms; Big Data; Preference Elicitation; Preference Prediction; Predictive Analytics; App Development; "Marketing Analytics"; Advertising; Mobile App; Mobile Marketing; Apparel; Online Advertising; Referral Rewards; Referrals; Female Ceo; Female Entrepreneur; Female Protagonist; Analytics and Data Science; Analysis; Creativity; Marketing Strategy; Brands and Branding; Consumer Behavior; Demand and Consumers; Forecasting and Prediction; Marketing Channels; Digital Marketing; Internet and the Web; Mobile and Wireless Technology; AI and Machine Learning; E-commerce; Digital Platforms; Fashion Industry; Retail Industry; Apparel and Accessories Industry; Consumer Products Industry; United States
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      Avery, Jill, Ayelet Israeli, and Emma von Maur. "THE YES: Reimagining the Future of E-Commerce with Artificial Intelligence (AI)." Harvard Business School Case 521-070, January 2021. (Revised March 2021.)
      • 2023
      • Working Paper

      Personalized Game Design for Improved User Retention and Monetization in Freemium Games

      By: Eva Ascarza, Oded Netzer and Julian Runge
      One of the most crucial aspects and significant levers that gaming companies possess in designing digital games is setting the level of difficulty, which essentially regulates the user’s ability to progress within the game. This aspect is particularly significant in... View Details
      Keywords: Freemium; Retention/churn; Field Experiment; Field Experiments; Gaming; Gaming Industry; Mobile App; Mobile App Industry; Monetization; Monetization Strategy; Games, Gaming, and Gambling; Mobile and Wireless Technology; Customers; Retention; Product Design; Strategy
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      Ascarza, Eva, Oded Netzer, and Julian Runge. "Personalized Game Design for Improved User Retention and Monetization in Freemium Games." Harvard Business School Working Paper, No. 21-062, November 2020. (Revised December 2023.)
      • October 2020 (Revised August 2022)
      • Case

      Epic Games: Nineteen Eighty-Fortnite

      By: Andy Wu, Miaomiao Zhang and Christopher Zhang
      In the midst of intensifying public and political attention towards the market power of big technology, Epic Games in 2020 challenged the status quo that has existed for years in the Apple iOS and Google Android mobile application marketplaces and payment systems.... View Details
      Keywords: Mobile Platforms; Mobile App Industry; Mobile Payment Systems; Antitrust; Games, Gaming, and Gambling; Mobile and Wireless Technology; Lawsuits and Litigation; Entrepreneurship; Competitive Strategy; Digital Platforms; United States
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      Wu, Andy, Miaomiao Zhang, and Christopher Zhang. "Epic Games: Nineteen Eighty-Fortnite." Harvard Business School Case 721-395, October 2020. (Revised August 2022.)
      • August 2020 (Revised June 2021)
      • Case

      Skillz: Esports and Skill-Based Mobile Gaming

      By: Andy Wu, David B. Yoffie and George Gonzalez
      Founded in 2012, Skillz offered a platform for mobile app developers to monetize skill-based games via prized tournaments. Skillz had over 20,000 registered developers that had created thousands of Skillz-powered games played by over 30 million registered users... View Details
      Keywords: Video Games; Mobile; Esports; Applications and Software; Games, Gaming, and Gambling; Mobile and Wireless Technology; Growth and Development Strategy; Information Technology; Digital Platforms; United States
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      Wu, Andy, David B. Yoffie, and George Gonzalez. "Skillz: Esports and Skill-Based Mobile Gaming." Harvard Business School Case 721-358, August 2020. (Revised June 2021.)
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