Publications

June 2018 (Revised January 2020)
Case

Voice War: Hey Google vs. Alexa vs. Siri

By: David B. Yoffie, Liang Wu, Jodie Sweitzer, Denzil Eden and Karan Ahuja

By early 2018, voice-controlled intelligent assistants had become a major new front in the battle between the giants of the technology sector. "Voice War" focuses on Alphabet’s strategy for Google Assistant, its entrant in the voice assistant space, and asks how the... View Details

Keywords: Alphabet; Amazon; Apple; Strategy; Technology; Intelligent Assistants; Smart Speaker; Voice Assistants; Voice; Platform; Technology Adoption; Digital Platforms; Competitive Strategy; Product Positioning; Technology Industry

March 2023 (Revised June 2023)
Case

Metaverse Wars

By: Andy Wu, David B. Yoffie and Matt Higgins

In 2023, the term metaverse — a combination of “meta” and “universe” — had become a catch-all for a diverse set of expectations about online virtual worlds and the future of the internet. To some, the metaverse conjured images of a massive participatory videogame... View Details

Keywords: Metaverse; Technology; Virtual Reality; Facebook; Social Media; Technological Innovation; Internet and the Web; Technology Adoption

05 Apr 2011
First Look

First Look: April 5

and operations theory suggests that the longer people wait, the less satisfied they become; we demonstrate that due to what we term the labor illusion, when websites engage in operational transparency by signaling that they are exerting... View Details

Keywords: Sean Silverthorne

2019
Book

The Business of Platforms: Strategy in the Age of Digital Competition, Innovation, and Power

By: Michael A. Cusumano, Annabelle Gawer and David B. Yoffie

The Business of Platforms explores the strategic, economic, and technology management challenges of digital platform businesses. We have five major themes in the book: 1) The world’s most valuable companies are all platforms, in part because platforms have... View Details

Keywords: Strategy; Technology; Platform; Internet and the Web; Management; Competitive Strategy; Digital Platforms

20 Nov 2012
First Look

First Look: November 20

levers differently, which partly explains the variation in Walmart's performance throughout the years. Under Sam Walton, the company's performance improved due mainly to the adoption of new technologies as well as low prices obtained from vendors. View Details

Keywords: Sean Silverthorne

February 2008 (Revised September 2008)
Case

Apple Inc., 2008

By: David B. Yoffie and Michael Slind

In January 2007, three decades after its incorporation, Apple Computer shed the second word in its name and became Apple Inc. With that move, the company signaled a fundamental shift away from its historic status as a vendor of the Macintosh personal computer (PC)... View Details

Keywords: Business Model; Leadership; Industry Growth; Corporate Strategy; Information Infrastructure; Internet and the Web; Consumer Products Industry; Electronics Industry; Technology Industry

14 Jun 2011
First Look

First Look: June 14

of people's daily lives, say Rangan and Chu of Harvard Business School and Petkoski of the World Bank. Start by dividing the base of the pyramid into three segments according to people's earnings and related personal needs: 1) Low income:... View Details

Keywords: Sean Silverthorne

April 2020
Case

Apple Inc. in 2020

By: David B. Yoffie and Daniel Fisher

After a decade as CEO, Tim Cook is facing one of his biggest strategic transitions of his tenure. While Apple had performed spectacularly well under Cook, Apple's core business was maturing. Sales of iPhones, iPads, and Macs were flat or down. However, Apple's new... View Details

Keywords: Innovation; Market Positioning; Marketing Implementation; Planning; Products; Strategic Positioning; Strategy; Information Technology; Competitive Strategy; Technological Innovation; Competitive Advantage; Product Positioning; Communication; Competition; Leadership; Strategic Planning; Computer Industry; Telecommunications Industry; Technology Industry

December 2010 (Revised May 2011)
Case

Cola Wars Continue: Coke and Pepsi in 2010

By: David B. Yoffie and Renee Kim

Examines the industry structure and competitive strategy of Coca-Cola and Pepsi over 100 years of rivalry. The most intense battles of the cola wars were fought over the $74 billion CSD industry in the United States, where the average American consumes 46 gallons of... View Details

Keywords: Profit; Growth and Development Strategy; Industry Structures; Competitive Strategy; Food and Beverage Industry; United States

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

28 Aug 2012
First Look

First Look: August 28

case:http://hbr.org/search/313036-PDF-ENG El Paso's Sale to Kinder Morgan John Coates, Clayton Rose, and David LaneHarvard Business School Case 313-021 On October 16, 2011, El Paso agreed to sell itself to Kinder Morgan for just over $21... View Details

Keywords: Sean Silverthorne

May 2006 (Revised April 2009)
Case

Cola Wars Continue: Coke and Pepsi in 2006

By: David B. Yoffie and Michael Slind

Examines the industry structure and competitive strategy of Coca-Cola and Pepsi over 100 years of rivalry. New challenges in 2006 include boosting flagging carbonated soft drink (CSD) sales and finding new revenue streams. Both firms also began to modify their... View Details

Keywords: History; Competitive Strategy; Industry Structures; Growth and Development Strategy; Food and Beverage Industry; United States

July 1986 (Revised April 1989)
Background Note

Note on Sources of Comparative Advantage

By: David B. Yoffie and John J. Coleman

After Eli Heckscher and Bertil Ohlin's propositions about the sources of comparative advantage were empirically challenged by Wassily Leontief, scholars set out to explain the "Leontief paradox" by developing alternative theories on the sources of comparative... View Details

Keywords: Competitive Advantage

Find at Harvard

March 1991
Supplement

Zenith and High-Definition Television--1990, Video

By: Benjamin Gomes-Casseres and David B. Yoffie

Records a visit by Jerry Pearlman, Zenith CEO, to an MBA classroom. He is shown commenting on Zenith strategy and industrial policy issues and fielding student questions. View Details

Keywords: Management Teams; Business Strategy; Policy; Trade; Competition; Electronics Industry

05 Feb 2013
First Look

First Look: Feb. 5

David F., Eric C. So, and Charles C.Y. Wang Publication:Journal of Accounting & Economics Abstract Firms with central or well-connected boards of directors earn superior risk-adjusted stock returns. Initiating a long position in the... View Details

Keywords: Sean Silverthorne

October 2017 (Revised August 2018)
Case

HTC and Virtual Reality

By: David B. Yoffie, Andy Wu and Allison M. Ciechanover

In fall 2017, HTC CEO and Chairperson Cher Wang was driving the company to focus on virtual reality (VR). HTC's first VR product, VIVE, released in spring 2016, was applauded for its superior immersive room-scale capabilities. However, early adoption of VR beyond... View Details

Keywords: Virtual Reality; Strategy; Competition; Information Technology; Innovation and Management; Consumer Behavior; Customer Relationship Management; Technology Industry

August 2013 (Revised July 2014)
Case

Coffee Wars in India: Café Coffee Day Takes On the Global Brands

By: David B. Yoffie and Tanya Bijlani

Café Coffee Day (CCD) is contemplating how to respond to the entry of Starbucks into the Indian coffee chain market. The case study describes the emergence of CCD as the leading coffee chain in India, with over 1,400 cafes in India. In early 2013, Starbucks, the... View Details

Keywords: Strategy; Competitors; Competition; Market Entry and Exit; Retail Industry; India