Publications

December 2021 (Revised March 2022)
Case

Collaboration Wars: Slack vs. Microsoft Teams

By: David B. Yoffie, Kriti Gupta, Mehek Punatar, Poonam Sacheti and Poorvi Vijay

In 2021, Slack was acquired by Salesforce. While widely viewed as the best corporate collaboration and messaging software, Slack was being challenged by Microsoft, which was giving away its competitive product, Microsoft Teams, for free with a subscription to... View Details

Keywords: Information Technology; Applications and Software; Technology Adoption; Acquisition; Business Model; Business Strategy; Competitive Strategy; Corporate Strategy; Competition; Expansion; Technology Industry

30 Nov 2009
Research & Ideas

Tracks of My Tears: Reconstructing Digital Music

favorite songs.” Harvard Business School professor Anita Elberse, who does much of her business research on the entertainment industry, looked at the clash between bundles and digital distribution, and the effect on media and... View Details

Keywords: by Sean Silverthorne; Music

28 May 2014
Working Paper Summaries

Leveraging Market Power Through Tying and Bundling: Does Google Behave Anti-Competitively?

Keywords: by Benjamin Edelman

December 2011
Article

Platform Envelopment

By: Thomas R. Eisenmann, Geoffrey Parker and Marshall Van Alstyne

Due to network effects and switching costs in platform markets, entrants generally must offer revolutionary functionality. We explore a second entry path that does not rely upon Schumpeterian innovation: platform envelopment. Through envelopment, a provider in one... View Details

Keywords: Digital Platforms; Business and Stakeholder Relations; Economic Systems; Development Economics; Business or Company Management; Business Strategy; Network Effects; Information Technology Industry; Technology Industry

Keywords: by Rene F. Kizilcec, Justin Reich, Michael Yeomans, Christoph Dann, Emma Brunskill, Glenn Lopez, Selen Turkay, Joseph J. Williams, and Dustin Tingley; Education

01 Dec 2003
What Do You Think?

Is This the Twilight Era for the Managed Mutual Fund?

Summing Up What Will it Take to Save the Managed Mutual Fund? In this month's column, I purposely took what I assumed was an extreme position in asking if this was the twilight era for the managed mutual fund. The responses the column generated from individual... View Details

Keywords: by James Heskett

10 Jul 2007
Working Paper Summaries

Platform Envelopment

Keywords: by Thomas Eisenmann, Geoffrey Parker & Marshall Van Alstyne; Technology

01 Jul 2020
Working Paper Summaries

Scaling Up Behavioral Science Interventions in Online Education

June 2023 (Revised November 2024)
Case

Collaboration Wars: Slack vs. Microsoft Teams 2023

By: David B. Yoffie, Kriti Gupta, Mehek Punatar, Poonam Sacheti and Poorvi Vijay

What's the future of corporate communications? Email? Corporate messaging? The battle for corporate messaging in 2023 was stacking up as a fight between Slack, which had been recently acquired by Salesforce, and Microsoft Teams. This case explores a classic judo... View Details

Keywords: Competition; Product Positioning; Marketing Strategy; Acquisition; Technology Industry; Communications Industry

07 Jul 2009
First Look

First Look: July 7

driven at least partly by career concerns. Download the paper: http://www.hbs.edu/research/pdf/09-014.pdf Policy Bundling to Overcome Loss Aversion: A Method for Improving Legislative Outcomes Authors:Katherine L. Milkman, Mary Carol... View Details

Keywords: Martha Lagace

April 2020
Teaching Note

Executive Compensation at Talent Partners

By: Richard S. Ruback, Royce G. Yudkoff and Ahron Rosenfeld

Teaching Note for HBS Case No. 211-073. Talent Partners, a payroll service firm focused on actors in commercials, hired Paul Muratore to be its CEO in 2002. His compensation package included a fixed salary and a bundle of Stock Appreciation Rights (SAR) that would... View Details

Keywords: Executive Compensation; Stock Options; Compensation and Benefits

September 2017
Case

Tencent

By: John R. Wells and Gabriel Ellsworth

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 service provider with several of the... 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 Units; Business Growth and Maturation; Business Organization; For-Profit Firms; Joint Ventures; Restructuring; Communication; Communication Technology; Blogs; Interactive Communication; Interpersonal Communication; Entertainment; Film Entertainment; Games, Gaming, and Gambling; Music Entertainment; Investment; Investment Portfolio; Price; Profit; 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; Emerging Markets; Market Entry and Exit; Digital Platforms; Industry Growth; Monopoly; Media; Distribution Channels; Product Development; 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; Segmentation; Information Technology; Internet and the Web; Mobile and Wireless Technology; Internet and the Web; Applications and Software; Information Infrastructure; Digital Platforms; Internet and the Web; Mobile and Wireless Technology; Value Creation; 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)

June 2003
Case

A Brief History of the Browser Wars

Recounts the history of the evolution of browser market shares from 1994 forward. Netscape's Navigator establishes a huge early lead, but is then displaced by an equally dominant offering from Microsoft. Highlights the role of Microsoft's dominance in desktop operating... View Details

Keywords: Competition; Marketing Strategy; Software; Web Services Industry

January 2017
Article

Contract Design and Stability in Many-to-Many Matching

By: John William Hatfield and Scott Duke Kominers

We develop a model of many-to-many matching with contracts that subsumes as special cases many-to-many matching markets and buyer/seller markets with heterogeneous and indivisible goods. In our setting, substitutable preferences are sufficient to guarantee the... View Details

Keywords: Many-to-Many Matching; Stability; Substitutes; Contract Design; Contracts; Marketplace Matching; Balance and Stability

2008
Working Paper

Economic Factors Underlying the Unbundling of Advertising Agency Services

By: Mohammad Arzaghi, Ernst R. Berndt, James C. Davis and Alvin J. Silk

This paper addresses a longstanding puzzle involving the unbundling of services that has occurredover more than two decades in the U.S. advertising agency industry: How can the shift from the bundling to the unbundling of services be explained and what accounts for the... View Details

Keywords: Transformation; Framework; Service Operations; Decisions; Relationships; Price; Diversification; Geography; Cost; Advertising Industry; United States

April 1999 (Revised August 1999)
Case

R&B Falcon

R&B Falcon is the world's leading offshore drilling contractor. Amid surging exploration budgets and increasing deepwater drilling activity, the company makes huge investments in several new state-of-the art $300 million ultra-deep-water drilling rigs. As day rates and... View Details

Keywords: Technology; Change Management; Industry Growth; Mining; Product Marketing; Mining Industry

May 2017
Article

Psychologically Informed Implementations of Sugary-Drink Portion Limits

By: Leslie John, Grant Donnelly and Christina Roberto

In 2012, the New York City Board of Health prohibited restaurants from selling sugary drinks in containers larger than 16 ounces. Although a state court ruled that the Board of Health did not have the authority to implement such a policy, it remains a legally viable... View Details

Keywords: Nutrition; Governing Rules, Regulations, and Reforms; Public Administration Industry; Food and Beverage Industry; New York (city, NY)

2007
Working Paper

Platform Envelopment

By: Thomas Eisenmann, Geoffrey Parker and Marshall Van Alstyne

Due to network effects and switching costs in platform markets, entrants generally must offer revolutionary functionality. We explore a second entry path that does not rely upon Schumpeterian innovation: platform envelopment. Through envelopment, a provider in one... View Details

Keywords: Digital Platforms; Market Entry and Exit; Network Effects

Summer 2019
Article

The Price Effects of Cross-Market Mergers: Theory and Evidence from the Hospital Industry

By: Leemore S. Dafny, Katherine Ho and Robin S. Lee

We consider the effect of mergers between firms whose products are not viewed as direct substitutes for the same good or service but are bundled by a common intermediary. Focusing on hospital mergers across distinct geographic markets, we show that such combinations... View Details

Keywords: Mergers and Acquisitions; Markets; Geographic Scope; Price; Outcome or Result; Insurance; Health Industry