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      • 2025
      • Working Paper

      Algorithmic Assortment Curation: An Empirical Study of Buybox in Online Marketplaces

      By: Santiago Gallino, Nil Karacaoglu and Antonio Moreno
      Most online sales worldwide take place in marketplaces that connect sellers and buyers. The presence of numerous third-party sellers leads to a proliferation of listings for each product, making it difficult for customers to choose between the available options. Online... View Details
      Keywords: Algorithms; E-commerce; Sales; Digital Marketing; Internet and the Web; Customer Satisfaction
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      Gallino, Santiago, Nil Karacaoglu, and Antonio Moreno. "Algorithmic Assortment Curation: An Empirical Study of Buybox in Online Marketplaces." Working Paper, 2025.
      • September 2022 (Revised November 2022)
      • Teaching Note

      PittaRosso: Artificial Intelligence-Driven Pricing and Promotion

      By: Ayelet Israeli
      Teaching Note for HBS Case No. 522-046. View Details
      Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
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      Israeli, Ayelet. "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion." Harvard Business School Teaching Note 523-020, September 2022. (Revised November 2022.)
      • July 2022 (Revised February 2024)
      • Teaching Note

      The DivaCup: Navigating Distribution and Growth

      By: Ayelet Israeli
      Teaching Note for HBS Case No. 519-055. When the mother-daughter founders of DivaCup set out with a mission to disrupt the menstrual care industry with an innovative product form, they initially struggled to gain legitimacy and convince retailers to carry their unique... View Details
      Keywords: Female; Female Ceo; Female Entrepreneur; Female Protagonist; Health & Wellness; Healthcare; Price Policies; Minimum Advertised Price; Differentiation; Positioning; Growth; Health; Health Care and Treatment; Price; Disruption; Distribution; Distribution Channels; Competitive Strategy; Competition; Growth Management; Mission and Purpose; Product Development; Product Marketing; Product Launch; Product Positioning; Advertising; Business Startups; Internet and the Web; Entrepreneurship; Social Entrepreneurship; Social Issues; Social Enterprise; Retail Industry; Medical Devices and Supplies Industry; Manufacturing Industry; Health Industry; Green Technology Industry; Education Industry; Distribution Industry; Consumer Products Industry; Canada; United States; United Kingdom
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      Israeli, Ayelet. "The DivaCup: Navigating Distribution and Growth." Harvard Business School Teaching Note 523-008, July 2022. (Revised February 2024.)
      • March 2022
      • Teaching Note

      Farfetch: Digital Transformation for Luxury Brands

      By: Jill Avery and Sunil Gupta
      Teaching Note for HBS Case No. 522-051. Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had... View Details
      Keywords: Brand Management; Retailing; Two Sided Markets; SaaS; Online Marketing; Marketing; Marketing Channels; Brands and Branding; Luxury; Digital Transformation; E-commerce; Digital Marketing; Retail Industry; Fashion Industry; London; United Kingdom; Portugal
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      Avery, Jill, and Sunil Gupta. "Farfetch: Digital Transformation for Luxury Brands." Harvard Business School Teaching Note 522-061, March 2022.
      • January 2022
      • Case

      Walmart USA—Searching for Growth

      By: Felix Oberholzer-Gee and Maria P. Roche
      In 2022, Doug McMillon, president and CEO of Walmart, and his team looked back at a difficult but ultimately successful past year. The global pandemic had posed enormous challenges, but the company had weathered the storm successfully, raising same-store sales growth,... View Details
      Keywords: Health Pandemics; Growth and Development Strategy; Sales; Business Strategy; Business and Shareholder Relations; Retail Industry
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      Oberholzer-Gee, Felix, and Maria P. Roche. "Walmart USA—Searching for Growth." Harvard Business School Case 722-395, January 2022.
      • 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
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      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.)
      • November 2021 (Revised December 2022)
      • Case

      Farfetch: Digital Transformation for Luxury Brands

      By: Sunil Gupta, Jill Avery, Elena Corsi and Federica Gabrieli
      Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had fluctuated since its IPO in 2018, it had... View Details
      Keywords: Digital Marketing; Marketplaces; Retailing; Internet Marketing; E-Commerce Strategy; Marketing; Marketing Strategy; Marketing Channels; Brands and Branding; Luxury; Growth and Development Strategy; Digital Transformation; E-commerce; Apparel and Accessories Industry; Beauty and Cosmetics Industry; Fashion Industry; Retail Industry; Web Services Industry; Technology Industry; United Kingdom; Europe; Portugal; China
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      Gupta, Sunil, Jill Avery, Elena Corsi, and Federica Gabrieli. "Farfetch: Digital Transformation for Luxury Brands." Harvard Business School Case 522-051, November 2021. (Revised December 2022.)
      • November 2021 (Revised December 2021)
      • Supplement

      PittaRosso (B): Human and Machine Learning

      By: Ayelet Israeli
      This case supplements the "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion" case, and provides major highlights on what happened at the company since the first case. View Details
      Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
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      Israeli, Ayelet. "PittaRosso (B): Human and Machine Learning." Harvard Business School Supplement 522-047, November 2021. (Revised December 2021.)
      • November 2021
      • Article

      Ratings, Reviews, and the Marketing of New Products

      By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek
      We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new... View Details
      Keywords: Online Reviews; Product Ratings; Social Networks; Word Of Mouth; Pricing; User-generated Content; Advertising; Product Marketing; Price; Consumer Behavior; Product Positioning; Social Media
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      Fainmesser, Itay P., Dominique Olié Lauga, and Elie Ofek. "Ratings, Reviews, and the Marketing of New Products." Management Science 67, no. 11 (November 2021): 7023–7045.
      • October 2021 (Revised May 2023)
      • Case

      Engine No. 1: An Impact Investing Firm Engages with ExxonMobil

      By: Mark Kramer, Shawn Cole, Vikram S. Gandhi and T. Robert Zochowski
      ExxonMobil, the world's fifth largest source of carbon emissions, remained committed to aggressively expanding its oil & gas business despite global warming. During the COVID pandemic this strategy resulted in massive losses as the price and demand for oil declined. ... View Details
      Keywords: Carbon Emissions; Global Warming; Impact Investment Funds; Hedge Fund Activism; Leadership Development; Business Model; Renewable Energy; Resource Allocation; Decision Choices and Conditions; Governing and Advisory Boards
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      Kramer, Mark, Shawn Cole, Vikram S. Gandhi, and T. Robert Zochowski. "Engine No. 1: An Impact Investing Firm Engages with ExxonMobil." Harvard Business School Case 222-028, October 2021. (Revised May 2023.)
      • October 2021 (Revised March 2022)
      • Supplement

      PittaRosso: Artificial Intelligence-Driven Pricing and Promotion

      By: Ayelet Israeli and Fabrizio Fantini
      PittaRosso, a traditional Italian shoe retailer, is implementing an AI system to provide pricing and promotion recommendations. The system allows them to implement changes that would affect both the top of funnel and bottom of funnel activities for the company: once... View Details
      Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; Retail Industry; Italy
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      Israeli, Ayelet, and Fabrizio Fantini. "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion." Harvard Business School Spreadsheet Supplement 522-710, October 2021. (Revised March 2022.)
      • October 2021 (Revised June 2022)
      • Case

      PittaRosso: Artificial Intelligence-Driven Pricing and Promotion

      By: Ayelet Israeli
      PittaRosso, a traditional Italian shoe retailer, is implementing an AI system to provide pricing and promotion recommendations. The system allows them to implement changes that would affect both the top of funnel and bottom of funnel activities for the company: once... View Details
      Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; AI; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
      Citation
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      Israeli, Ayelet. "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion." Harvard Business School Case 522-046, October 2021. (Revised June 2022.)
      • July 2021
      • Article

      Outsourcing Tasks Online: Matching Supply and Demand on Peer-to-Peer Internet Platforms

      By: Zoë Cullen and Chiara Farronato
      We study the growth of online peer-to-peer markets. Using data from TaskRabbit, an expanding marketplace for domestic tasks at the time of our study, we show that growth varies considerably across cities. To disentangle the potential drivers of growth, we look... View Details
      Keywords: Two-sided Market; Two-sided Platforms; Peer-to-peer Markets; Platform Strategy; Sharing Economy; Platform Growth; Internet and the Web; Digital Platforms; Strategy; Market Design; Network Effects
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      Cullen, Zoë, and Chiara Farronato. "Outsourcing Tasks Online: Matching Supply and Demand on Peer-to-Peer Internet Platforms." Management Science 67, no. 7 (July 2021): 3985–4003.
      • 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.)
      • April 2021 (Revised July 2021)
      • Case

      StockX: The Stock Market of Things (Abridged)

      By: Chiara Farronato, John J. Horton, Annelena Lobb and Julia Kelley
      Founded in 2015 by Dan Gilbert, Josh Luber, and Greg Schwartz, StockX was an online platform where users could buy and sell unworn luxury and limited-edition sneakers. Sneaker resale prices often fluctuated over time based on supply and demand, creating a robust... View Details
      Keywords: Markets; Auctions; Bids and Bidding; Demand and Consumers; Consumer Behavior; Analytics and Data Science; Market Design; Digital Platforms; Market Transactions; Marketplace Matching; Supply and Industry; Analysis; Price; Product Marketing; Product Launch; Apparel and Accessories Industry; Fashion Industry; North and Central America; United States; Michigan; Detroit
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      Farronato, Chiara, John J. Horton, Annelena Lobb, and Julia Kelley. "StockX: The Stock Market of Things (Abridged)." Harvard Business School Case 621-107, April 2021. (Revised July 2021.)
      • February 2021
      • Case

      Threadless: The Renewal of an Online Community

      By: Shane Greenstein, Karim Lakhani and Christian Godwin
      Threadless, an online apparel company and artist community which Jake Nickell founded in 2000, continued to maintain its status as a top company in the online apparel industry during its second decade. From 2010 to 2020, Threadless continued to operate its... View Details
      Keywords: Business Model; Decision Making; Entrepreneurship; Innovation and Invention; Leading Change; Management; Marketing; Product Launch; Operations; Supply Chain; Distribution; Networks; Sales; Strategy; Adaptation; Information Technology; Applications and Software; Digital Platforms; Apparel and Accessories Industry; Technology Industry; North America
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      Greenstein, Shane, Karim Lakhani, and Christian Godwin. "Threadless: The Renewal of an Online Community." Harvard Business School Case 621-056, February 2021.
      • 2021
      • Working Paper

      The Value of Descriptive Analytics: Evidence from Online Retailers

      By: Ron Berman and Ayelet Israeli
      Does the adoption of descriptive analytics impact online retailer performance, and if so, how? We use the synthetic difference-in-differences method to analyze the staggered adoption of a retail analytics dashboard by more than 1,500 e-commerce websites, and we find an... View Details
      Keywords: Descriptive Analytics; Big Data; Synthetic Control; E-commerce; Online Retail; Difference-in-differences; Martech; Internet and the Web; Analytics and Data Science; Performance; Retail Industry
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      Berman, Ron, and Ayelet Israeli. "The Value of Descriptive Analytics: Evidence from Online Retailers." Harvard Business School Working Paper, No. 21-067, November 2020. (Revised December 2021. Accepted at Marketing Science.)
      • October 2020 (Revised June 2021)
      • Case

      Francisco Partners Private Credit Opportunity Fund

      By: Luis M. Viceira, John D. Dionne, Soracha Prathanrasnikorn and Ari Sunshine
      In April 2020, Scott Einsenberg, the Head of Credit at the private equity firm Francisco Partners, is deciding whether to go ahead with extending a private lending agreement to Eventbrite, Inc. (NYSE: EB), a leading global event management and online ticketing... View Details
      Keywords: Private Debt; Private Credit; Industry Evolution; Private Equity; Investment; Analysis
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      Viceira, Luis M., John D. Dionne, Soracha Prathanrasnikorn, and Ari Sunshine. "Francisco Partners Private Credit Opportunity Fund." Harvard Business School Case 221-002, October 2020. (Revised June 2021.)
      • August 2020 (Revised May 2021)
      • Case

      PayPal: The Next Chapter

      By: Michael Porter, Mark Kramer and Annelena Lobb
      Can a social purpose and stakeholder capitalism confer a powerful competitive advantage in the age of COVID-19? For PayPal, the answer is yes. After spinning off from eBay in a 2015 IPO, the company declared its purpose as "democratizing financial services" by ensuring... View Details
      Keywords: Mission and Purpose; Finance; Business and Stakeholder Relations; Social Entrepreneurship; Competitive Advantage; Financial Services Industry
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      Porter, Michael, Mark Kramer, and Annelena Lobb. "PayPal: The Next Chapter." Harvard Business School Case 721-378, August 2020. (Revised May 2021.)
      • July 2020
      • Teaching Note

      Shindigz

      By: Frank Cespedes
      Teaching Note for HBS Case No. 819-010. Shindigz sells party and celebratory items through its branded direct online channel, third-party retail and wholesale channels, and online marketplaces. Shindigz has for decades successfully executed a premium-priced branded... View Details
      Keywords: Ecommerce; Pricing; Price; Strategy; Decision Making; Distribution Channels; Brands and Branding; E-commerce; Consumer Products Industry
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      Cespedes, Frank. "Shindigz." Harvard Business School Teaching Note 821-024, July 2020.
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