Publications
Publications
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- All HBS Web
(1,073)
- Faculty Publications (297)
- September 2004
- Case
Valhalla Partners Due Diligence
By: William A. Sahlman and Dan Heath
The Valhalla Partners venture capitial firm introduced a new approach to the due-diligence process. An internal due-diligence report analyzes Telco Exchange, a startup company in the IT software space. An extended excerpt examines the trade-offs involved in the new... View Details
- June 2004 (Revised November 2004)
- Case
Microsoft in 2004
By: Michael G. Rukstad, David B. Yoffie, Brian DeLacey and Deborah Freier
Surveys Microsoft's expansion into new businesses, such as mobile and embedded devices, home and entertainment, and business solutions, as it faces challenges due to size and maturity and outside threats from Linux and Google. A rewritten version of an earlier case. View Details
- May 2004 (Revised March 2005)
- Case
Instant Messaging
By: David B. Yoffie and Deborah Freier
Explores the usage and technology of instant messaging (IM). IM enables two or more users to communicate almost instantaneously over the Internet with short, private text messages. Most IM service providers chose to remain proprietary and, therefore, a user of most IM... View Details
- January 2004
- Case
Nokia and MIT's Project Oxygen (Abridged)
By: David B. Yoffie and Rebecca Henderson
Looks at how Nokia should respond to a future vision of computing and communications that was developed at MIT's Project Oxygen. View Details
- October 2003 (Revised March 2004)
- Case
Symbian: Setting the Mobility Standard
By: Fernando F. Suarez and Thomas R. Eisenmann
Symbian, a joint venture owned by companies who collectively sold a dominant share of the world's cell phones, faced competition from Microsoft in developing the operating system for "smartphones," which integrated mobile communications and computing functions. In... View Details
- June 2002 (Revised August 2002)
- Case
WorldSpace: Digital Radio for the Developing World
By: Debora L. Spar
Describes the evolution of WorldSpace, the world's first major provider of digital radio service to the developing world. The brainchild of Noah Samara, an African-born, American-trained lawyer, WorldSpace has a dual commercial and social mission. Samara wants to... View Details
- June 2002 (Revised July 2002)
- Case
NTT DoCoMo: Marketing i-mode
By: Youngme E. Moon
i-mode is a wireless Internet service offered in Japan by NTT DoCoMo. In just three years, the service has won over 30 million subscribers and achieved a 60% share of Japan's mobile Internet market, making it the most successful mobile data service in the world. It is... View Details
- January 2002 (Revised April 2002)
- Case
Space Data Corporation
By: Alan D. MacCormack and Jay Wynn
Space Data Corp. plans to partner with the U.S. National Weather Service to place transceivers on weather balloons and thereby create a national mobile communications network. The company is in the late development stages and is planning to launch a regional test that... View Details
- August 2001 (Revised May 2002)
- Case
Worldzap
By: Rohit Deshpande, Carin-Isabel Knoop, Suma Raju and David Kiron
In February 2001, the CEO of a new technology start-up had to decide how to present his firm's value proposition to future clients, customers, and business partners. The technology allowed distribution of full-motion video clips of sports highlights to "third... View Details
- August 2001 (Revised November 2001)
- Case
Vicinity Corporation: Turning Web Traffic into Store Traffic
By: Frances X. Frei, David Margalit and Amanda Yelsh
Vicinity uses its Internet and m-commerce technology to help drive traffic into its customers' physical distribution outlets. The company has terrific technology and is seemingly successful in getting more consumers into its customers' stores, yet it is in a precarious... View Details
- February 2001 (Revised August 2001)
- Case
Dialpad Communications (A)
By: Alan D. MacCormack and Kerry Herman
Describes the evolution of Dialpad, a voice-over-Internet-protocol telephony company. Set in September 2000, CEO Brad Garlinghouse faces a dilemma: what to do about the large number of international users who use Dialpad to call the United States for free. He must also... View Details
- December 2000 (Revised November 2001)
- Case
Rise and Fall of Iridium, The
By: Alan D. MacCormack and Kerry Herman
Examines the history of Iridium Communications, a provider of mobile satellite services. Discusses the genesis of Iridium's technical design, then follows the venture through various stages of development. Describes Iridium's attempts to build a subscriber base after... View Details
- October 2000 (Revised September 2002)
- Case
NTT DoCoMo (A): The Future of the Wireless Internet?
By: Stephen P. Bradley and Matthew Sandoval
NTT DoCoMo was established in 1992 and became publicly held in 1998. This case tracks how DoCoMo became the number one mobile phone company in Japan and how its i.mode service revolutionized the cellular phone market. View Details
- January 2000 (Revised April 2000)
- Case
StarMedia: Launching a Latin American Revolution
By: Thomas R. Eisenmann and Jon K Rust
By the fall of 1999, StarMedia had sprinted to a sizable lead in the race to acquire Latin American Internet users. Its pan-regional, horizontal portal was the first to target Spanish- and Portuguese-language speakers on the Internet, registering 1.2 billion page views... View Details
- September 1999 (Revised January 2000)
- Technical Note
Last Mile of Broadband Access, The: Technical Note
By: Jay O. Light, Lynda M. Applegate and Daniel J. Green
Provides an overview of broadband access technology. Includes technical overviews of cable, DSL, fixed wireless, and satellite systems, and suggests the technical suitability of each to accommodate broadband applications. View Details
- April 1999 (Revised September 2001)
- Case
Penelope's Personal Pocket Phones
By: Paul A. Gompers
Provides students with an opportunity to use simple real options analysis to value a startup. Penelope Phillips is deciding whether to start a company to make wireless phones. Students get experience using traditional discounted cash flow valuation and a real options... View Details
- April 1999 (Revised September 2000)
- Case
Interep National Radio Sales, Inc.
By: Benson P. Shapiro, Stephen X. Doyle and Wade Myers
Interep must mobilize sales information technology, organizational structures, and sales management processes to protect and enhance its strong position as a radio advertising sales firm. Opportunities and risks are high in this complex, rapidly changing sales agency... View Details
- January 1999
- Case
Bell Atlantic and the Union City Schools (D): Results and Replication
By: Rosabeth M. Kanter and Ellen Pruyne
The last in a five-part series about Bell Atlantic Corp.'s technology-in-education partnership with the Union City, New Jersey school system. Reviews the various outcomes of the partnership called Project Explore, from the perspective of Bell Atlantic managers and... View Details
- December 1998
- Case
Bell Atlantic and the Union City Schools (A): The Intelligent Network
By: Rosabeth M. Kanter and Ellen Pruyne
The first in a five-part series about Bell Atlantic Corp.'s technology-in-education partnership with the Union City, New Jersey school system. Provides an overview of the telecommunications industry in general and Bell Atlantic in particular, with special attention to... View Details
- June 1998 (Revised December 2006)
- Case
Clear Communications Ltd. vs. Telecom Corporation of New Zealand Ltd. (A)
By: Willis M. Emmons III and Martin Calles
Features the challenges facing an entrant in the New Zealand telecommunications market during the period 1989-1994. Clear Communications Ltd. (CCL), a joint venture owned by Bell Canada, MCI, New Zealand Television Corp., and Todd Companies, begins offering long... View Details