Publications

2025
Working Paper

Generative AI and the Nature of Work

By: Manuel Hoffmann, Sam Boysel, Frank Nagle, Sida Peng and Kevin Xu

Recent advances in artificial intelligence (AI) technology demonstrate a considerable potential to complement human capital intensive activities. While an emerging literature documents wide-ranging productivity effects of AI, relatively little attention has been paid... View Details

Keywords: Generative Ai; Digital Work; Open Source Software; Knowledge Economy; AI and Machine Learning; Open Source Distribution; Organizational Structure; Performance Productivity; Labor

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2013
Working Paper

Where do the Most Active Customers Originate and How Can Firms Keep Them Engaged?

By: Clarence Lee, E. Ofek and Thomas Steenburgh

In this paper, we study how firms offering Web services can acquire and develop an active customer base. We focus on two basic questions. First, how does the method of customer acquisition affect the way customers use the service to meet their own needs and to interact... View Details

Keywords: Customer Engagement; Adoption Routes; Hidden Markov Models; Search; Word-of-Mouth; Digital Media; Customer Relationship Management; Internet and the Web; Mathematical Methods; Consumer Behavior; Entrepreneurship; Marketing Reference Programs; Web Services Industry

Fall 2018
Article

The Value of Fit Information in Online Retail: Evidence from a Randomized Field Experiment

By: Santiago Gallino and Antonio Moreno

Online channels generate frictions when selling products with nondigital attributes, such as apparel. Customers may be reluctant to purchase products they have not been able to try on, and those customers who do purchase may return products when they do not fit as... View Details

Keywords: Supply Chain Information; Fit Uncertainty; Online Retail; Randomized Field Experiment; Virtual Fitting Room; Digital Retail; Customization and Personalization; Internet and the Web; Value; Performance Improvement; Apparel and Accessories Industry; Retail Industry

Find at Harvard

Jacob Cook is a Lecturer in the Marketing Unit at Harvard Business School, where he teaches the EC course Digital Marketing & AI Workshop. His work focuses on how companies design and scale customer acquisition and retention strategies using digital marketing,... View Details

01 Sep 2020
News

Action Plan: Finding Fluency

Duolingo shifted from being a tool for travelers to a classroom assistant for parents educating their children at home and a much-needed distraction for adult learners. Marketing evolved, too, responding to these new and changing consumer... View Details

Keywords: April White; foreign language; education and technology; digital marketing; change management; COVID-19; Educational Services

October 2023
Case

Houghton Mifflin Harcourt: A Curriculum Provider Puts Itself on the Hook for Student Outcomes

By: John J-H Kim, Derek C. M. van Bever, Michael Norris and Max Hancock

Jack Lynch, CEO of Houghton Mifflin Harcourt (HMH) since 2017, was leading the company’s transformation from a legacy textbook publisher to a digital-first student outcomes provider, which earned subscription revenue from digital products and curriculum. In 2023, HMH... View Details

Keywords: Edtech; Textbook; Publishing; Leading Change; Change Management; Transformation; Digital Transformation; Expansion; Business Strategy; Publishing Industry; Education Industry; United States

September 2023
Case

Trilling Foods: Managing People with Data

By: Alexandra C. Feldberg and Jeffrey T. Polzer

Trilling Foods, a regional bricks-and-mortar grocery chain, has recently provided its frontline managers with new tools for using data. Allison Andersen, Trilling’s VP of Data Science, has spearheaded these efforts. Yet, as she works with Kent Wade, the general manager... View Details

Keywords: Digital Transformation; Management Practices and Processes; Training; Organizational Change and Adaptation; Food and Beverage Industry; Retail Industry

July 2021 (Revised February 2022)
Case

Mary Kay Inc.: Enriching Women's Lives while Embracing Change

By: Elie Ofek, K. Shelette Stewart and Julia Kelley

In December 2020, Mary Kay Inc. Chief Marketing Officer Sheryl Adkins-Green considered several strategic dilemmas. Founded in 1963 by Mary Kay Ash, Mary Kay was a direct sales company whose Independent Beauty Consultants purchased its beauty and cosmetics products at... View Details

2021
Book

Remote Work Revolution: Succeeding from Anywhere

By: Tsedal Neeley

The rapid and unprecedented changes brought on by COVID-19 have accelerated the transition to remote working, requiring the wholesale migration of nearly entire companies to virtual work in just weeks, leaving managers and employees scrambling to adjust. This massive... View Details

Keywords: Remote Work; Health Pandemics; Employment; Disruption; Organizational Change and Adaptation; Management

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BYJU’S The Learning App (BYJU’s) is India’s largest K-12 education app with approximately 300,000 annual paid subscribers. The mobile app uses a mix of video lessons and interactive tools to personalize learning for every student. Although there is room to grow... View Details

HBX: Sustainable Business Strategy

Climate change. Income inequality. Institutional collapse. Sustainable Business Strategy is a flexible, 3 week, highly-interactive online course designed to provide participants with the tools they need to build thriving businesses while... View Details

March 27, 2017
Article

How the Water Industry Learned to Embrace Data

By: Frank V. Cespedes and Amir Peleg

Most current talk about “big data” seems to assume the disintermediation or replacement of physical assets by digital technologies. But a bigger and more impactful trend is the use of online tools to improve physical asset utilization in many traditional off-line... View Details

Keywords: Information Technology; Analytics and Data Science; Organizational Change and Adaptation; Utilities Industry

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10 Sep 2021
News

Human or Computer? Who’s Really Helping You With Customer Service?

November 2023
Case

Will Fintechs and Central Banks Play in Emtech's Sandbox?

By: Daniel Isenberg and William R. Kerr

In February 2023, Emtech’s founder Carmelle Cadet is facing a dilemma. Rapidly running out of cash, Cadet has a term sheet from a leading VC but has a choice of how to structure the investment. The decision will have significant implications for Cadet’s own stake, as... View Details

Keywords: Cryptocurrency; Business Startups; Venture Capital; Cash Flow; Currency; Governing Rules, Regulations, and Reforms; Digital Platforms