Publications

Research Summary

Overview

According to McKinsey & Company, social interactions impact up to a third of all consumer purchases which accounts for US$940 billion in annual consumption in the US and Europe alone. Understanding social influence is important meeting consumer needs. In my research,... View Details

Keywords: Social Networks; Social Influence; Homophily; CRM; Mobile Gaming; Customer Lifetime Value; Forestry; Banking; Retail Banks

June 2018 (Revised June 2018)
Case

Facebook Confronts a Crisis of Trust

By: William W. George and Amram Migdal

The case, “Facebook Confronts a Crisis of Trust,” starts with the crisis Facebook founder and CEO Mark Zuckerberg is facing in March 2018 over Cambridge Analytica’s accessing data from 87 million Facebook accounts in order to influence the 2016 U.S. Presidential... View Details

November 2017
Teaching Note

Tencent

By: John R. Wells and Gabriel Ellsworth

Teaching Note for HBS No. 718-426. Tencent had undergone many transformations since it was founded in 1998 as a simple messaging service. In 2017, it was the largest online games provider in China with a wide range of game types, China’s largest social networking... View Details

Keywords: Tencent; Tencent Holdings; WeChat; Social Networking; Social Networks; Gaming; Gaming Industry; Video Games; Computer Games; Mobile Gaming; Portals; Payments; Mobile Payments; O2O; Online-to-offline; E-commerce; Messaging; Subscription Model; Freemium; Mobile App Industry; Smartphone; PC; Monetization Strategy; Antitrust; Streaming; Cloud Computing; Artificial Intelligence; Big Data; Alibaba; Facebook; JD.com; Tesla; Bundling; Synergies; Digital Strategy; Imitation; Licensing; Agility; Entry Barriers; Online Platforms; Advertising; Digital Marketing; Business Ventures; Acquisition; Mergers and Acquisitions; Business Conglomerates; Business Growth and Maturation; Business Organization; For-Profit Firms; Joint Ventures; Restructuring; Communication Technology; Blogs; Interactive Communication; Interpersonal Communication; Entertainment; Film Entertainment; Games, Gaming, and Gambling; Music Entertainment; Investment; Investment Portfolio; Price; Revenue; Geographic Scope; Cross-Cultural and Cross-Border Issues; Global Strategy; Multinational Firms and Management; Globalized Markets and Industries; Business History; Innovation Strategy; Technological Innovation; Business or Company Management; Goals and Objectives; Growth and Development Strategy; Product Positioning; Social Marketing; Network Effects; Market Entry and Exit; Digital Platforms; Industry Growth; Monopoly; Media; Distribution Channels; Service Delivery; Organizational Change and Adaptation; Organizational Structure; Public Ownership; Problems and Challenges; Business and Government Relations; Groups and Teams; Networks; Opportunities; Social and Collaborative Networks; Strategy; Adaptation; Business Strategy; Commercialization; Competition; Competitive Advantage; Competitive Strategy; Cooperation; Corporate Strategy; Diversification; Expansion; Horizontal Integration; Vertical Integration; Information Technology; Internet and the Web; Mobile and Wireless Technology; Applications and Software; Information Infrastructure; Value Creation; Emerging Markets; Product Development; Segmentation; Business Units; Communication; Profit; Communications Industry; Entertainment and Recreation Industry; Financial Services Industry; Information Industry; Information Technology Industry; Media and Broadcasting Industry; Motion Pictures and Video Industry; Music Industry; Service Industry; Technology Industry; Telecommunications Industry; Video Game Industry; Web Services Industry; Asia; China; Canton (province, China)

April 2005 (Revised March 2007)
Case

eAccess, Ltd.

By: Thomas R. Eisenmann, Masako Egawa and Ariko Ota

The managers of eAccess, Japan's third largest provider of digital subscriber line (DSL) service, must decide whether to enter the mobile communications business. Japan's mobile services are among the world's most expensive, and incumbent carriers' profits are high. To... View Details

Keywords: Information Infrastructure; Diversification; Policy; Business Startups; Mobile and Wireless Technology; Communications Industry; Telecommunications Industry; Japan

Find at Harvard

02 Apr 2015
Research & Ideas

Digital Initiative Summit: Big Messages, Small Screens, Many Choices

In the land of the digitally connected, the mobile device is king. The majority of digital media consumption happens on mobile devices, with smartphone and tablet activity making up 60 percent of digital... View Details

Keywords: by Carmen Nobel; Advertising

October 2018 (Revised September 2020)
Case

Testing Autonomy in Pittsburgh

By: Mitchell Weiss and Brittany Urick

Pittsburgh’s mayor had been among the first to welcome self-driving vehicles but was now one of many needing to react after a pedestrian fatality involving an autonomous Uber in Arizona. He had originally preferred to roll out “the red carpet” instead of the “red... View Details

24 Oct 2023
Research & Ideas

When Tech Platforms Identify Black-Owned Businesses, White Customers Buy

Generations of Black business owners have had to fight discrimination to prosper in America, but a new study suggests that these entrepreneurs are now gaining more support in parts of the country when they make their presence known. The study, coauthored by Harvard... View Details

Keywords: by Jay Fitzgerald; Food & Beverage

October 2007
Case

iPhone vs. Cell Phone

By: David B. Yoffie and Michael Slind

The launch of Apple's iPhone marked a pivotal new chapter in the story of mobile music (the uniting of digital music players with mobile phones). The iPhone combined an iPod music player, a cell phone, and a mobile Internet device, along with a camera and other... View Details

Keywords: Communication Technology; Music Entertainment; Product Launch; Partners and Partnerships; Mobile and Wireless Technology; Communications Industry; Music Industry

May 2021 (Revised February 2024)
Teaching Note

THE YES: Reimagining the Future of E-Commerce with Artificial Intelligence (AI)

By: Ayelet Israeli and Jill Avery

THE YES, a multi-brand shopping app launched in May 2020 offered a new type of buying experience for women’s fashion, driven by a sophisticated algorithm that used data science and machine learning to create and deliver a personalized store for every shopper, based on... View Details

Keywords: Data; Data Analytics; Artificial Intelligence; AI; AI Algorithms; AI Creativity; Fashion; Retail; Retail Analytics; E-Commerce Strategy; Platform; Platforms; Big Data; Preference Elicitation; Predictive Analytics; App Development; ＂Marketing Analytics＂; Advertising; Mobile App; Mobile Marketing; Apparel; Online Advertising; Referral Rewards; Referrals; Female Ceo; Female Entrepreneur; Female Protagonist; Analytics and Data Science; Analysis; Creativity; Marketing Strategy; Brands and Branding; Consumer Behavior; Demand and Consumers; Forecasting and Prediction; Marketing Channels; Digital Marketing; Internet and the Web; Mobile and Wireless Technology; AI and Machine Learning; E-commerce; Digital Platforms; Fashion Industry; Retail Industry; Apparel and Accessories Industry; Consumer Products Industry; United States

21 May 2024
Research & Ideas

What the Rise of Far-Right Politics Says About the Economy in an Election Year

As more than 50 countries hold elections in 2024, far-right politicians and policies look poised to gain ground, continuing a years-long trend evident in Europe, the United States, and South America. These movements often stoke grievances about international trade,... View Details

Keywords: by Rachel Layne

13 Mar 2023
Research & Ideas

What Would It Take to Unlock Microfinance's Full Potential?

In the 50 years since modern microfinance was introduced as a tool to fight poverty, institutions have distributed hundreds of millions of loans to people in developing countries. Such loans are repaid at rates often as high as 98 percent. Those metrics alone seem to... View Details

Keywords: by Jen McFarland Flint; Financial Services

November 2017
Teaching Note

Amazon.com, 2016

By: John R. Wells and Gabriel Ellsworth

Teaching Note for HBS No. 716-402. On January 28, 2016, Amazon announced record 2015 operating profits of $2.2 billion on $107 billion of sales, and the markets responded with cautious optimism. For years, founder and CEO Jeffrey Bezos had prioritized growth and... View Details

Keywords: Strategic Analysis; Retail; E-commerce; Amazon; Amazon.com; AmazonFresh; Jeff Bezos; Cloud Computing; Marketplaces; Streaming; E-reader Market; Digital Media; Mobile App; Online Retail; Shipping; Database; Tablet; Kindle; Kindle Fire; Smartphone; Delivery; Market Platforms; Two-Sided Platforms; Competition; Internet; Corporate Strategy; Online Advertising; Business Growth and Maturation; Business Model; Business Organization; For-Profit Firms; Film Entertainment; Games, Gaming, and Gambling; Music Entertainment; Television Entertainment; Profit; Revenue; Global Strategy; Multinational Firms and Management; Taxation; Business History; Human Resources; Resignation and Termination; Books; Human Capital; Working Conditions; Business or Company Management; Goals and Objectives; Growth and Development Strategy; Growth Management; Management Practices and Processes; Industry Growth; Industry Structures; Media; Distribution; Distribution Channels; Order Taking and Fulfillment; Infrastructure; Logistics; Product Development; Supply Chain; Supply Chain Management; Organizational Culture; Public Ownership; Work-Life Balance; Problems and Challenges; Labor and Management Relations; Strategy; Adaptation; Business Strategy; Competitive Strategy; Diversification; Expansion; Integration; Horizontal Integration; Vertical Integration; Hardware; Information Technology; Mobile Technology; Online Technology; Technology Networks; Technology Platform; Web; Web Sites; Price; Software; Marketing; Marketing Strategy; Working Capital; Customer Focus and Relationships; Customer Value and Value Chain; Retail Industry; Advertising Industry; Distribution Industry; Electronics Industry; Entertainment and Recreation Industry; Information Technology Industry; Manufacturing Industry; Motion Pictures and Video Industry; Music Industry; Publishing Industry; Shipping Industry; Technology Industry; Video Game Industry; Web Services Industry; United States; Washington (state, US); Seattle

July 2020
Article

Intra-firm Geographic Mobility: Value Creation Mechanisms and Future Research Directions

By: Prithwiraj Choudhury

This paper argues that intra-firm geographic mobility is an understudied mechanism that can help mitigate coordination failures in a geographically distributed organization. The paper presents an organizing framework on how intra-firm geographic mobility creates value... View Details

Keywords: Multinational Firms and Management; Employees; Geographic Location; Value Creation

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Teaching Interest

Competing in the Age of Digital Platforms—(Executive Education)

By: David B. Yoffie

Summary

Without exception, the most valuable companies in the world today are platforms. Microsoft, Apple, Amazon, Google, Facebook, and many other firms have built their fortunes by facilitating innovation across global ecosystems or... View Details

Keywords: Platforms; Technology; Strategy; Digital Business; Social Networks; Self-driving Cars; Mobile Gaming; Esports; Financial Services; Online Retail; Ride-sharing; Search; Auctions; United States; Asia; China; Europe

November 2008
Background Note

Welcome to a Wireless World

By: Stephen P. Bradley and Nancy Bartlett

Wireless technologies and mobile devices have played crucial roles in the evolution of the digital ecosystem. This note looks at cell phones, smartphones, mobile technologies, and popular applications noting companies that are positioned to capture the value engendered... View Details

Keywords: Business Ventures; Product; Mobile and Wireless Technology; Technology Industry

June 2023 (Revised November 2023)
Case

Sober Sidekick

By: Jeffrey J. Bussgang and Kumba Sennaar

Case on the nascent business model of a mobile health IT startup. In particular, should they pivot away from their successful lead generation business model to charging health plans. View Details

Keywords: Entrepreneurship; Venture Capital; Operations; Business Startups; Business Model; Health Industry; United States

December 2022 (Revised August 2023)
Case

Circles.Life at a Crossroads of Growth

By: Juan Alcácer and Adina Wong

In June 2022, the founders of Singapore mobile operator Circles.Life had a crucial decision to make. Circles.Life developed a new business model in mobile telecommunications—a digital telco—built around its proprietary operating system. After expanding its brand in... View Details

Keywords: Business Model; Decisions; Technological Innovation; Applications and Software; Business Strategy; Telecommunications Industry; Singapore

March 2015 (Revised September 2016)
Technical Note

Baidu, Alibaba, and Tencent: The Three Kingdoms of the Chinese Internet

By: Feng Zhu and Aaron Smith

This note provides an overview of the Chinese Internet by describing its leading three companies: Baidu, Alibaba, and Tencent (BAT). While BAT had previously focused their respective businesses on distinct sectors of the online economy—Baidu for search, Alibaba for... View Details

Keywords: Competition; Internet; Information Technology Industry; China

January 2009 (Revised May 2011)
Case

China Mobile's Rural Communications Strategy

By: William C. Kirby, F. Warren McFarlan, G.A. Donovan and Tracy Manty

China Mobile was the world's leading mobile communications service provider with over 400 million customers. In some cities, its penetration rate was over 100%. With such huge successes, Chairman Wang Jianzhou was exploring ways to expand its customer base. Nearly... View Details

Keywords: Communication Technology; Mobile and Wireless Technology; Investment; Rural Scope; Strategy; Growth and Development Strategy; Corporate Social Responsibility and Impact; Business and Government Relations; Telecommunications Industry; China