Publications

January 2025
Case

Duolingo: On a 'Streak'

By: Jeffrey F. Rayport, Nicole Tempest Keller and Nicole Luo

In December 2024, Severin Hacker, Co-Founder and Chief Technology Officer of Duolingo, reflected on the remarkable evolution of the language-learning app he helped launch in 2011. As the #1 most downloaded education app in the world, Duolingo had over 100 million... View Details

Keywords: Learning; AI and Machine Learning; Growth and Development Strategy; Motivation and Incentives; Diversification; Technology Industry; Technology Industry; United States

January 2025
Teaching Note

AGENTS.inc: Pathways to Growth at an AI Startup

By: Frank Nagle and Susan Pinckney

Teaching Note for HBS Case No. 724-444. In 2024, AI agent startup company AGENTS.inc faced multiple strategic decisions that could shape the company’s ability to grow into the future AI agent market leader. View Details

Keywords: Business Startups; AI and Machine Learning; Growth and Development Strategy; Open Source Distribution; Entrepreneurial Finance; Competition; Technology Industry; Technology Industry; Europe; Germany

January 2025
Case

Summer Health: Raising an AI-First Company?

By: Jeffrey J. Bussgang, Sarah Mehta and Maxim Pike Harrell

In October 2023, Summer Health CEO Ellen DaSilva arrived at a defining juncture for her pediatric telehealth startup. Founded in 2021, Summer Health offered parents rapid access to licensed pediatricians via text message. DaSilva, an experienced telehealth executive,... View Details

Keywords: AI and Machine Learning; Technology Adoption; Entrepreneurship; Leadership; Health Industry; Telecommunications Industry; United States

January 2025
Case

Davivienda Bank's Upskilling and Reskilling Strategy in Colombia (Abridged)

By: Jorge Tamayo, Raffaella Sadun and Jenyfeer Martinez Buitrago

Set in 2022, this abridged case examines the digital transformation strategy of Davivienda—a leading player in Colombia’s commercial banking sector and one of the companies belonging to Grupo Bolívar, a major Colombian conglomerate—and the bank’s upskilling and... View Details

January 2025
Case

Intuition Robotics: An AI Companion for Older Adults

By: Amit Goldenberg, Elie Ofek and Orna Dan

Intuition Robotics, a startup that makes an AI companion robot to alleviate older adults’ loneliness, debates whether to pursue a B2C model or B2G route. If it opts for the government vertical, it must determine how to negotiate a favorable deal. Two weeks after... View Details

Keywords: Business Model; Business Startups; AI and Machine Learning; Technology Adoption; Product Launch; Market Entry and Exit; Negotiation Offer; Business and Government Relations; Technology Industry; Technology Industry; United States; New York (state, US)

January 2025
Case

Untapped Global: Financing Africa's Missing Middle

By: Raymond Kluender and Emanuele Colonnelli

In November 2024, Jim Chu, founder and CEO of Untapped Global, faced mounting internal tensions over the company’s strategic direction. Untapped had developed a data-driven revenue-based financing (RBF) model to address the “missing middle” problem—the $5.2 trillion... View Details

2025
Working Paper

Crossing the Design-Use Divide: How Process Manipulation Shapes the Design and Use of AI

By: Rebecca Karp

Existing literature often separates research on the design of innovations from their implementation and use, neglecting the role of selection—how organizations choose which innovations to implement. Although scholars suggest scientific approaches for selecting novel... View Details

Keywords: Decision Choices and Conditions; Technology Adoption; Groups and Teams; Prejudice and Bias

January 2025
Supplement

Wendell Weeks at Corning Inc.

By: Ryan Raffaelli

Keywords: Innovation and Invention; Innovation Strategy; Technological Innovation; Disruptive Innovation; Information Technology; Leadership; Health Pandemics; Technology Industry; United States; New York (city, NY)

Working Paper

AI in Disguise—How AI-generated Ads' Visual Cues Shape Consumer Perception and Performance

By: Yannick Exner, Jochen Hartmann, Oded Netzer and Shunyuan Zhang

Generative AI’s recent advancements in creating content have offered vast potential to transform the advertising industry. This research investigates the impact of generative AI-enabled visual ad creation on real-world advertising effectiveness. For this purpose, we... View Details

Keywords: Digital Marketing; AI and Machine Learning; Advertising; Consumer Behavior; Advertising Industry

SSRN

January 2025
Case

PayJoy: Financing for the Next Billion

By: Boris Groysberg and Sarah L. Abbott

PayJoy, an impact-driven financial technology company founded in 2015, provides smartphone financing and other financial products to customers who lack access to traditional credit products. As of early 2025, PayJoy had issued $2.5 billion in loans to 13 million... View Details

January 2025
Case

The VideaHealth AI Factory: CEO Florian Hillen on Speed, Scale, and Innovation (A)

By: Tsedal Neeley, Levi Stroud, Ruth Page and Dave Habeeb

Pre-abstract: This multimedia case should be assigned to students in advance of class. Instructors should consider the timing of making the (B) Case videos available to students, as they may reveal key case details. Abstract: Florian Hillen, co-founder and CEO of... View Details

Keywords: AI; Adoption; Diagnostics; Organization Design; Change Management; Disruption; Transformation; Health Care and Treatment; AI and Machine Learning; Technology Adoption; Disruptive Innovation; Technological Innovation; Management Style; Organizational Culture; Success; Technology Industry; Technology Industry; United States

January 2025
Supplement

The VideaHealth AI Factory: CEO Florian Hillen on Speed, Scale, and Innovation (B)

By: Tsedal Neeley, Levi Stroud, Ruth Page and Dave Habeeb

Pre-abstract: This multimedia case should be assigned to students in advance of class. Instructors should consider the timing of making the (B) Case videos available to students, as they may reveal key case details. Abstract: Florian Hillen, co-founder and CEO of... View Details

Keywords: AI; Adoption; Diagnostics; Organization Design; Change Management; Disruption; Transformation; Health Care and Treatment; AI and Machine Learning; Technology Adoption; Disruptive Innovation; Technological Innovation; Management Style; Organizational Culture; Success; Technology Industry; Technology Industry; United States

2025
Article

Humor as a Window into Generative AI Bias

By: Roger Samure, Julian De Freitas and Stefano Puntoni

A preregistered audit of 600 images by generative AI across 150 different prompts explores the link between humor and discrimination in consumer-facing AI solutions. When ChatGPT updates images to make them “funnier”, the prevalence of stereotyped groups changes. While... View Details

Keywords: AI and Machine Learning; Demographics; Prejudice and Bias

January 2025
Case

Apax Partners: Deciding Whether to Bid for Trader Corp.

By: Benjamin C. Esty and Edward A. Meyer

Apax Partners’ investment committee was schedule to meet on March 21, 2011, to decide whether to invest in Trader Corporation, a Canadian classified advertising business for used automobiles with both print (magazines) and digital (website) distribution. What made this... View Details

January 2025
Case

Cyber Oversight: SolarWinds Board of Directors

By: Lynn S. Paine

In 2020, just two years after its IPO, information technology company SolarWinds discovered that it was the victim of an attack on its information systems by Russian hackers. The incident, known as the Sunburst attack, was costly for the company, and certain... View Details

Keywords: Corporate Governance; Corporate Accountability; Governing and Advisory Boards; Cybersecurity; Lawsuits and Litigation; Legal Liability; Business and Shareholder Relations; Information Technology Industry; United States; Texas; Delaware

January 2025
Article

Reducing Prejudice with Counter-stereotypical AI

By: Erik Hermann, Julian De Freitas and Stefano Puntoni

Based on a review of relevant literature, we propose that the proliferation of AI with human-like and social features presents an unprecedented opportunity to address the underlying cognitive and affective drivers of prejudice. An approach informed by the psychology of... View Details

Keywords: Prejudice and Bias; AI and Machine Learning; Interpersonal Communication; Social and Collaborative Networks

2025
Article

Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments

By: Kosuke Imai and Michael Lingzhi Li

Researchers are increasingly turning to machine learning (ML) algorithms to investigate causal heterogeneity in randomized experiments. Despite their promise, ML algorithms may fail to accurately ascertain heterogeneous treatment effects under practical settings with... View Details

Keywords: AI and Machine Learning; Mathematical Methods; Analytics and Data Science

Find at Harvard

January–February 2025
Article

The Double-Edged Sword of Exemplar Similarity

By: Majid Majzoubi, Eric Zhao, Tiona Zuzul and Greg Fisher

We investigate how a firm’s positioning relative to category exemplars shapes security analysts’ evaluations. Using a two-stage model of evaluation (initial screening and subsequent assessment), we propose that exemplar similarity enhances a firm’s recognizability and... View Details

Keywords: Natural Language Processing; Analytics and Data Science; Performance Evaluation

January–February 2025
Article

Want Your Company to Get Better at Experimentation?: Learn Fast by Democratizing Testing

By: Iavor Bojinov, David Holtz, Ramesh Johari, Sven Schmit and Martin Tingley

For years, online experimentation has fueled the innovations of leading tech companies, enabling them to rapidly test and refine new ideas, optimize product features, personalize user experiences, and maintain a competitive edge. The widespread availability and lower... View Details

Keywords: Technological Innovation; AI and Machine Learning; Analytics and Data Science; Product Development; Competitive Advantage