Publications

February 2023 (Revised March 2023)
Case

Hey, Insta & YouTube, Are You Watching TikTok?

By: Felix Oberholzer-Gee

In early 2023, the entertainment app TikTok reached close to 1 billion users globally, placing it 4th behind the leading social networks of Facebook, YouTube, and Instagram. Featuring a sophisticated recommendation engine, TikTok mastered the art of keeping users... View Details

Keywords: Social Media; Applications and Software; Business Model; Competition; Organizational Change and Adaptation

2023
Working Paper

Distributionally Robust Causal Inference with Observational Data

By: Dimitris Bertsimas, Kosuke Imai and Michael Lingzhi Li

We consider the estimation of average treatment effects in observational studies and propose a new framework of robust causal inference with unobserved confounders. Our approach is based on distributionally robust optimization and proceeds in two steps. We first... View Details

Keywords: AI and Machine Learning; Mathematical Methods

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2023
Article

A Randomized Trial of Behavioral Nudges Delivered through Text Messages to Increase Influenza Vaccination among Patients with an Upcoming Primary Care Visit

By: Mitesh S. Patel, Katherine L. Milkman, Linnea Gandhi, Heather N. Graci, Dena Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Jake Rothschild, Modupe Akinola, John Beshears, Jonathan E. Bogard, Alison Buttenheim, Christopher Chabris, Gretchen B. Chapman, James J. Choi, Hengchen Dai, Craig R. Fox, Amir Goren, Matthew D. Hilchey, Jillian Hmurovic, Leslie John, Dean Karlan, Melanie Kim, David Laibson, Cait Lamberton, Brigitte C. Madrian, Michelle N. Meyer, Maria Modanu, Jimin Nam, Todd Rogers, Renante Rondina, Silvia Saccardo, Maheen Shermohammed, Dilip Soman, Jehan Sparks, Caleb Warren, Megan Weber, Ron Berman, Chalanda N. Evans, Seung Hyeong Lee, Christopher K. Snider, Eli Tsukayama, Christophe Van den Bulte, Kevin G. Volpp and Angela L. Duckworth

Purpose: To evaluate if nudges delivered by text message prior to an upcoming primary care visit can increase influenza vaccination rates.
Design: Randomized, controlled trial.
Setting: Two health systems in the Northeastern US between September 2020 and... View Details

Keywords: Vaccination; Health Care and Treatment; Interpersonal Communication; Communication Technology; Behavior; Health Industry

January–February 2023
Article

Forecasting COVID-19 and Analyzing the Effect of Government Interventions

By: Michael Lingzhi Li, Hamza Tazi Bouardi, Omar Skali Lami, Thomas Trikalinos, Nikolaos Trichakis and Dimitris Bertsimas

We developed DELPHI, a novel epidemiological model for predicting detected cases and deaths in the prevaccination era of the COVID-19 pandemic. The model allows for underdetection of infections and effects of government interventions. We have applied DELPHI across more... View Details

Keywords: COVID-19 Pandemic; Epidemics; Analytics and Data Science; Health Pandemics; AI and Machine Learning; Forecasting and Prediction

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February 2023
Article

National Models of Climate Governance Among Major Emitters

By: Johnathan Guy, Esther Shears and Jonas Meckling

National climate institutions structure the process of climate mitigation policymaking and shape climate policy ambition and performance. Countries have, for example, been building science bodies, passing climate laws and creating new agencies. Here we provide the... View Details

Keywords: Environmental Regulation; Policy; Analytics and Data Science; Climate Change

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January 2023 (Revised April 2023)
Case

Cobalt Robotics: Scaling Workplace Robotics

By: Jeffrey F. Rayport, Nicole Tempest Keller and Kyung Keun Park

Founded in 2016, Cobalt Robotics, based in Fremont, California, was a Robot-as-a-Service (RaaS) company that built autonomous workplace robots that were designed to replace or supplement human security guards. Outfitted with over 60 sensors, Cobalt robots patrolled... View Details

Keywords: Information Infrastructure; Disruptive Innovation; Innovation and Invention; Marketing Strategy; Marketing Channels; Customers; Technology Industry; United States; California

January 2023
Case

Baofeng's Philanthropic Efforts in China

By: Lauren Cohen, Hao Gao, Bo Li and Zhaoheng Gong

Yanbao Dang, President of Baofeng Group and founder of the Yanbao Foundation, Baofeng Group’s philanthropic arm, weighed how the family nonprofit could maximize its impact. On a mission to eliminating poverty through broadening access to educational opportunities in... View Details

Keywords: Family Business; Entrepreneurship; Rural Scope; Social Enterprise; Nonprofit Organizations; Social Issues; Poverty; Resource Allocation; Green Technology Industry; Green Technology Industry; China; Asia

January 2023 (Revised December 2023)
Case

OhmConnect: Energizing the Future

By: Jeffrey F. Rayport, Jennifer Fonstad and Nicole Tempest Keller

Founded in 2013, OhmConnect was a free consumer web app that alerted customers about peak hours of electricity demand, and paid them to lower their energy use at home during these periods. The company sold the aggregated reductions generated by thousands of households... View Details

Keywords: App Development; Renewable Energy; Electricity Usage; Regulations; VC; Technology; Customer Acquisition Cost (CAC); Scalability; Applications and Software; Growth and Development Strategy; Governing Rules, Regulations, and Reforms; Business Model; Venture Capital; Energy Industry; United States; California; Texas; Europe

January 2023 (Revised January 2024)
Case

Digital Transformation at Tata Steel

By: Krishna Palepu, Das Narayandas, Radhika Kak and Rachna Tahilyani

T.V. Narendran, CEO of Tata Steel, India’s oldest steel manufacturing firm, had taken concrete business and cultural transformation steps to future-ready the firm since taking over in 2013. He had deleveraged and instilled financial discipline, acquired new businesses,... View Details

Keywords: Digital Transformation; Digital Strategy; Change Management; Growth and Development Strategy; E-commerce; Steel Industry; Asia; India

January 2023
Case

The Ford Motor Company Green Bond

By: Vikram S Gandhi and James Barnett

In November 2021, Ford Motor Company offered a $2.5 billion green bond to finance investments in electrification. Issuance of green bonds significantly increased into the 2020s, and to date, the Ford Motor Company green bond was the largest such bond offered by a... View Details

Keywords: Finance; Bonds; Green Technology; Financial Services Industry; Auto Industry; United States

2023
Working Paper

Leadership and the Value of Persistence

By: James J. Anton, Alan Jaske and Dennis Yao

Consider a leader’s decision whether to persist with an unsuccessful R&D project or to terminate the project in favor of a new project with an uncertain value. How does that decision affect the effort exerted by the manager assigned to the project? To study this... View Details

Keywords: Persistence; Project Evaluation; R＆D Project Management; Projects; Decision Choices and Conditions; Leadership

January 2023
Supplement

Apple: Privacy vs. Safety (B)

By: Henry McGee, Nien-hê Hsieh and Christian Godwin

In 2020, as the COVID-19 pandemic swept across the globe, Apple and Google partnered to develop a contact tracing application that would collect information about users infected with the disease and notify those who they had been in contact with. While Apple/Google’s... View Details

January 2023 (Revised June 2024)
Supplement

Zaoui & Co. (B): Executing the Odyssey SPAC Transaction

By: Ashish Nanda, Alex Kitsberg and Zack Kurtovich

In September 2019, founding partners Michael and Yoel Zaoui decided to add principal investing to Zaoui & Co.’s offerings. The case outlines how, over the next two years, Zaoui & Co. pursued the formation of a SPAC, Odyssey Acquisitions, followed by the identification... View Details

Keywords: Finance; Investment Banking; SPACs; M＆A; Strategy; Entrepreneurship; Europe; United Kingdom

January 2023 (Revised June 2023)
Case

Replika: Embodying AI

By: Shikhar Ghosh, Shweta Bagai and Marilyn Morgan Westner

Replika was a virtual AI companion that provided a way for people to process their emotions, build connections in a safe environment, and get through periods of loneliness. The chatbot fulfilled a user's need for a friend, romantic partner, or purely an emotional... View Details

Keywords: AI; AI and Machine Learning; Applications and Software; Human Needs; California

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 August 2023)
Case

Veeva Systems and the Transformation to a Public Benefit Corporation

By: Ranjay Gulati and Allison M. Ciechanover

Peter Gassner, the co-founder and CEO of Veeva Systems, steered the company through rapid scaling from its launch in 2007 to 2022. Year after year, the company had exceeded expectations, with its market capitalization reaching $50 billion at its peak. By 2022, the... View Details

Keywords: Transformation; Corporate Governance; Corporate Social Responsibility and Impact; Mission and Purpose; Organizational Culture; Information Technology Industry; Information Technology Industry; United States; California

January 2023
Module Note

Network Effects in Technology

By: Andy Wu and Matt Higgins

In business and strategy contexts, network effects are often accompanied by bandwagon (or herding) effects, positive feedback loops (or accumulated advantage effects), and market tipping (or winner-take-all dynamics). Though these phenomena are often grouped together... View Details

Keywords: Strategy; Network Effects

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

January 2023
Case

Proday: Calling the Right Play

By: Lindsay N. Hyde, Thomas R. Eisenmann and Tom Quinn

Sarah Kunst knew the elements of a successful startup from her tenure at venture capital firms. In April 2018, however, her own app – Proday, a home fitness platform featuring exercises filmed by professional sports stars – was floundering. Kunst theorized that... View Details

Keywords: Social Media; Entrepreneurship; Advertising; Digital Marketing; Product Launch; Social Marketing; Failure; Sports; Applications and Software; Business Startups; Technology Industry; United States