Publications
Publications
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- All HBS Web
(1,014)
- Faculty Publications (211)
- 2009
- Chapter
Opening Platforms: When, How and Why?
By: Thomas R. Eisenmann, Geoffrey Parker and Marshall Van Alstyne
Platform-mediated networks encompass several distinct types of participants, including end users, complementors, platform providers who facilitate users' access to complements, and sponsors who develop platform technologies. Each of these roles can be opened-that... View Details
- December 2009
- Article
Strategy-proofness versus Efficiency in Matching with Indifferences: Redesigning the NYC High School Match
By: Atila Abdulkadiroglu, Parag A. Pathak and Alvin E. Roth
The design of the New York City (NYC) High School match involved tradeoffs among efficiency, stability, and strategy-proofness that raise new theoretical questions. We analyze a model with indifferences—ties—in school preferences. Simulations with field data and the... View Details
- 2009
- Working Paper
From Strategy to Business Models and to Tactics
By: Ramon Casadesus-Masanell and Joan Enric Ricart
The notion of business model has been used by strategy scholars to refer to "the logic of the firm, the way it operates and how it creates value for its stakeholders." On the surface, this notion appears to be similar to that of strategy. We present a conceptual... View Details
- August 2009 (Revised July 2010)
- Case
Jones Lang LaSalle: Reorganizing around the Customer (2005)
By: Ranjay Gulati and Lucia Menzer Marshall
Peter Roberts, CEO of Jones, Lang, LaSalle (JLL) Americas division, has been charged with expanding the company's presence in its core geographic markets while simultaneously growing its corporate account business. Roberts and his task force have narrowed their options... View Details
- July 2009 (Revised August 2011)
- Case
What Happened at Citigroup? (A)
By: Clayton S. Rose and Aldo Sesia
What went wrong at Citigroup? In 1998, the Travelers Group and Citicorp merged to create Citigroup Inc., considered the first true global "financial supermarket" and a business model to be envied, feared, and emulated. By year-end 2006 the firm had a market... View Details
- 2009
- Working Paper
Do Friends Influence Purchases in a Social Network?
By: Raghuram Iyengar, Sangman Han and Sunil Gupta
Social networks, such as Facebook and Myspace have witnessed a rapid growth in their membership. Some of these businesses have tried an advertising-based model with very limited success. However, these businesses have not fully explored the power of their members to... View Details
- 2008
- Book
On Competition
By: M. E. Porter
Competition is one of society's most powerful forces for making things better in many fields of human endeavor. The study of competition and the creation of value, in their full richness, have preoccupied me for several decades. Competition is pervasive, whether it... View Details
- 2008
- Working Paper
Opening Platforms: How, When and Why?
By: Thomas R. Eisenmann, Geoffrey Parker and Marshall Van Alstyne
Platform-mediated networks encompass several distinct types of participants, including end users, complementors, platform providers who facilitate users' access to complements, and sponsors who develop platform technologies. Each of these roles can be opened-that... View Details
- August 2008 (Revised December 2009)
- Case
Nantero
By: William A. Sahlman, Dan Heath and Caroline Perkins
This case describes a decision confronting the founder of Nantero, a company developing a new semiconductor technology. The company needs to raise additional venture capital. Potential investors have competing visions for the company, and its business model. Some... View Details
- July 2008 (Revised September 2009)
- Case
Betfair vs. UK Bookmakers
By: Ramon Casadesus-Masanell and Neil Campbell
Betting exchanges provide an electronic platform that allows ordinary consumers to not only back teams to win, but also to lay odds for other punters to back. This business model allows punters to cut out the middleman of the bookmaker and leads to a much more... View Details
- 2008
- Working Paper
Collaborative Architectures for Innovation
By: Gary P. Pisano and Roberto Verganti
Collaborative innovation has become a hot topic in innovation today. Scholars, consultants, and the business press all urge companies seeking to boost innovative performance to become more "collaborative." Too often, however, companies fail to distinguish among the... View Details
- May 2008
- Article
Regulation and Bonding: The Sarbanes-Oxley Act and the Flow of International Listings
By: Suraj Srinivasan and Joseph Piotroski
In this paper, we examine the economic impact of the Sarbanes-Oxley Act (SOX) by analyzing foreign listing behavior onto U.S. and U.K. stock exchanges before and after the enactment of the Act in 2002. Using a sample of all listing events onto U.S. and U.K. exchanges... View Details
- March 2008 (Revised June 2009)
- Case
Actis: January 2008
By: Felda Hardymon, Josh Lerner and Ann Leamon
Paul Feltcher, the CEO of Actis, a leading private equity investor in emerging markets, is preparing for an executive retreat at which the management team will consider how best to position the firm for the future. Actis could move in a number of different directions... View Details
- March – April 2008
- Article
Interorganizational Trust, Governance Choice, and Exchange Performance
By: Ranjay Gulati and Jackson Nickerson
This paper looks at when and how preexisting interorganizational trust influences the choice of governance and in turn the performance of exchange relationships. We theorize that preexisting interorganizational trust complements the choice of governance mode (make,... View Details
- Article
Coarse Thinking and Persuasion
By: Sendhil Mullainathan, Joshua Schwartzstein and Andrei Shleifer
We present a model of uninformative persuasion in which individuals "think coarsely": they group situations into categories and apply the same model of inference to all situations within a category. Coarse thinking exhibits two features that persuaders take advantage... View Details
- January 2008
- Background Note
Collateralized Debt Obligations (CDOs)
By: Joshua Coval and Erik Stafford
This lesson integrated Merton's (1974) contingent claims model of debt and equity claims with the CAPM, which allows us to examine the risks and pricing of credit portfolios and the derivative claims issued against them. In particular, this model is used to make... View Details
- 2007
- Working Paper
Choice, Rationality and Welfare Measurement
By: Jerry R. Green and Daniel A. Hojman
We present a method for evaluating the welfare of a decision maker, based on observed choice data. Unlike the standard economic theory of revealed preference, our method can be used whether or not the observed choices are rational. Paralleling the standard theory we... View Details
- Article
Reputation When Threats and Transfers Are Available
By: Ernesto Dal Bo, Pedro Dal Bo and Rafael Di Tella
We present a model where a long-run player is allowed to use both money transfers and threats to influence the decisions of a sequence of short-run players. We show that threats might be used credibly (even in arbitrarily short repeated games) by a long-lived player... View Details
- June 2007 (Revised March 2008)
- Case
Zoots - Financing Growth (A)
By: Michael J. Roberts, William A. Sahlman and Todd Krasnow
Traces the genesis and founding of Zoots, the largest chain of dry cleaning establishments in the U.S. Founded by some of the founders of the very successful Staples chain, the company raises a very large amount of capital without fully proving its business model, and... View Details
- 2007
- Working Paper
Coupled Search Processes: Why Is it so Difficult to Find that Organizational Design Matters?
By: Nicolaj Siggelkow and Jan Rivkin
Organizational design affects performance via coupled search processes. At low frequency, managers search for appropriate organizational designs. At higher frequency, managers use designs to search for high-performing operational choices. The two searches are coupled:... View Details