Publications

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November 2022 (Revised March 2024)
Case

Replika AI: Monetizing a Chatbot

By: Julian De Freitas and Nicole Tempest Keller

In early 2018, Eugenia Kuyda, co-founder and CEO of San Francisco-based chatbot Replika AI, was deciding how to monetize the app she had built. Launched in 2017, Replika was a consumer AI “companion app” developed by a team of AI software engineers originally based in... View Details

Keywords: Mental Health; Subscriber Models; TAM; Monetization Strategy; Marketing Strategy; Product Marketing; AI and Machine Learning; Applications and Software; Product Positioning; Health Disorders; Technology Industry

2008
Working Paper

The Agglomeration of U.S. Ethnic Inventors

By: William R. Kerr

The ethnic composition of US inventors is undergoing a significant transformation—with deep impacts for the overall agglomeration of US innovation. This study applies an ethnic-name database to individual US patent records to explore these trends with greater detail.... View Details

Keywords: Information Technology; Geographic Location; Patents; Ethnicity; City; Innovation and Invention; United States

SSRN

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August 2018 (Revised April 2019)
Case

Chateau Winery (A): Unsupervised Learning

By: Srikant M. Datar and Caitlin N. Bowler

This case follows Bill Booth, marketing manager of a regional wine distributor, as he applies unsupervised learning on data about his customers’ purchases to better understand their preferences. Specifically, he uses the K-means clustering technique to identify groups... View Details

Keywords: Clustering; Data Science; Analytics and Data Science; Customers; Marketing; Analysis

October 2022
Case

Beam Dental (A)

By: Rembrand Koning and Alicia Dadlani

In May 2014, Alex Frommeyer, cofounder and CEO of Kentucky-based Beam Dental, a seed-stage startup that developed connected toothbrushes that tracked brushing habits, needed to decide which strategy to pitch to a venture capital firm. The first pitch deck played to the... View Details

Keywords: Business Startups; Business Strategy; Entrepreneurship; Financing and Loans; Presentations; Product Development; Insurance Industry; United States; Kentucky; Ohio

2013
Working Paper

The Operational Consequences of Private Equity Buyouts: Evidence from the Restaurant Industry

By: Albert W. Sheen and Shai Bernstein

What, if anything, do private equity firms do with businesses they acquire? We find evidence of significant operational changes in 101 restaurant chain buyouts between 2002 and 2012. Analysis of health inspections conducted for over 50,000 stores in Florida shows that... View Details

Keywords: Safety; Quality; Private Equity; Food; Management Practices and Processes; Leveraged Buyouts; Performance Efficiency; Food and Beverage Industry; Food and Beverage Industry; Florida

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November 2024 (Revised January 2025)
Case

Balancing Impact: Modeling the Future at British International Investment

By: Shawn Cole and Jonah Zahnd

In 2022, British International Investment (BII), the £8.1 billion development finance arm of the British government, implemented a new impact measurement system called the Impact Score to align its financial and impact objectives systematically. The tool was designed... View Details

October 2001 (Revised March 2002)
Case

Siemens AG: Global Development Strategy (A)

By: Stefan H. Thomke and Ashok Nimgade

Describes how Siemens, the German electrical engineering giant, has developed and manages global R&D in its large Information and Communications Networks (ICN) division. In 1994, Siemens opened its Bangalore (India) center, which has now grown into one of its largest... View Details

Keywords: Global Strategy; Research and Development; Cross-Cultural and Cross-Border Issues; Product Development; Telecommunications Industry; Germany; Bangalore

2007
Working Paper

How Is Foreign Aid Spent? Evidence from a Natural Experiment

By: Eric D. Werker, Faisal Z. Ahmed and Charles Cohen

We use oil price fluctuations to construct a new instrument to test the impact of transfers from wealthy OPEC nations to their poorer Muslim allies. The instrument identifies plausibly exogenous variation in foreign aid. We investigate how aid is spent by tracking its... View Details

Keywords: International Finance; Energy Sources; Energy Industry; Asia

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September 2015 (Revised December 2016)
Case

Wanda Studios Qingdao

By: Henry McGee and Willy Shih

Wang Jianlin, founder and Chairman of the Dalian Wanda Group (Wanda), kept close tabs on one of his flagship projects going up on the shores of the Yellow Sea. There construction was underway on Wanda Studios Qingdao, the largest film and production facility in the... View Details

Keywords: Dalian Wanda Group; AMC Entertainment; Wang Jianlin; Movie Industry; Vertical Specialization; Film; Film Entertainment; Theater Entertainment; Entertainment; Vertical Integration; Entertainment and Recreation Industry; China; United States

John Deighton is The Harold M. Brierley Professor of Business Administration Emeritus at Harvard Business School. He is an authority on consumer behavior and marketing, with a focus on digital and direct marketing. He teaches in the area of Big Data in Marketing,... View Details

Keywords: advertising; banking; beverage; communications; computer; consumer products; credit card; e-commerce industry; financial services; grocery; hotels ＆ motels; information technology industry; marketing industry; music; pharmaceuticals; professional services

10 Oct 2014
News

Ending Gender Discrimination Requires More than a Training Program

01 Oct 2021
News

Inside the Taiwan Firm That Makes the World’s Tech Run

02 Jun 2017
News

Who’s gay? Depends on who’s asking

2010
Chapter

The Agglomeration of U.S. Ethnic Inventors

By: William R. Kerr

The ethnic composition of US inventors is undergoing a significant transformation - with deep impacts for the overall agglomeration of US innovation. This study applies an ethnic-name database to individual US patent records to explore these trends with greater detail.... View Details

Keywords: Information Technology; Geographic Location; Patents; Ethnicity; City; Innovation and Invention; United States

SSRN

29 Mar 2011
News

Harvard Business School Receives Papers of Benefactor George Fisher Baker

Article

Matriarch: A Python Library for Materials Architecture

By: Tristan Giesa, Ravi Jagadeesan, David I. Spivak and Markus J. Buehler

Biological materials, such as proteins, often have a hierarchical structure ranging from basic building blocks at the nanoscale (e.g., amino acids) to assembled structures at the macroscale (e.g., fibers). Current software for materials engineering allows the user to... View Details

Keywords: Building Block; Category Theory; Hierarchical Protein Materials; Molecular Design; Open-Source Software; Structure Creation

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November 2020 (Revised July 2022)
Case

Dell Technologies: Bringing the Cloud to the Ground

By: Navid Mojir and V. Kasturi Rangan

The case tells the story of Dell Technologies and its efforts to revitalize its value proposition and escape a commodity trap by acquiring EMC for $67 billion—the largest tech acquisition in history. It also shows the deeply intertwined connections between a company’s... View Details

Keywords: Value Proposition; Go-to-market; Strategic Positioning; Mergers and Acquisitions; Business Strategy; Marketing Strategy; Technological Innovation; Business Divisions; Information Technology Industry; Computer Industry

Michael Tushman holds degrees from Northeastern University (B.S.E.E.), Cornell University (M.S.), and the Sloan School of Management at M.I.T. (Ph.D.). Tushman was on the faculty of the Graduate School of Business, Columbia University, from 1976 to 1998 where he was... View Details

April 2020 (Revised April 2023)
Supplement

TransDigm in 2017: The Beginning of the End or the End of the Beginning?

By: Benjamin C. Esty and Daniel Fisher

TransDigm was a highly acquisitive company that manufactured a wide range of highly engineered aerospace parts for both military and commercial customers. Over the ten years ending in 2016, its stock price had increase ten times, and both EBITDA and revenues had grown... View Details

Keywords: Acquisition; Ethics; Private Equity; Financial Strategy; Growth Management; Performance Evaluation; Business Strategy; Competitive Strategy; Horizontal Integration; Value Creation; Competitive Advantage; Aerospace Industry; Air Transportation Industry; United States