Publications

November 2001
Case

Sigma Networks, Inc.

By: Thomas R. Eisenmann and Christina L. Darwall

Sigma Networks, a venture capital-based telecommunications start-up, provides metropolitan area networks (MANs) that use fiberoptic lines to connect local Internet service providers (e.g., ISPs, hosting firms) with a long-haul ("backbone") network. MANs represent a... View Details

Keywords: Business Startups; Customers; Capital Budgeting; Venture Capital; Strategic Planning; Technology Networks; Telecommunications Industry

09 Apr 2025
HBS Seminar

Marc Rysman, Boston University

September 2011 (Revised January 2012)
Case

Gerson Lehrman Group: Managing Risks

By: Boris Groysberg, Paul Healy and Sarah L. Abbott

It was June 2011 and Alexander Saint-Amand, President and CEO of Gerson Lehrman Group, the largest expert network firm globally, has found his firm once again in the midst of controversy. This controversy centered around a number of insider trading cases that had been... View Details

Keywords: Risk Management

Educators

2013
Article

Boardroom Centrality and Firm Performance

By: David F. Larcker, Eric C. So and Charles C.Y. Wang

Firms with central or well-connected boards of directors earn superior risk-adjusted stock returns. Initiating a long position in the most central firms and a short position in the least central firms earns an average risk-adjusted return of 4.68% per year. Firms with... View Details

Keywords: Networks; Governing and Advisory Boards; Forecasting and Prediction; Performance

SSRN

April 2008
Case

The Energy Foundation

By: Jane Wei-Skillern and Alison Berkley Wagonfeld

The Energy Foundation, a philanthropic foundation established through a partnership among major donors with a mission to promote clean energy technology, is the largest funder in the U.S. focusing on the energy sector. The $60 million foundation operates through a... View Details

Keywords: Entrepreneurship; Investment Funds; Philanthropy and Charitable Giving; Corporate Social Responsibility and Impact; Networks; Expansion; Energy Industry; Green Technology Industry; United States

March 2003 (Revised November 2003)
Case

3i Group plc

By: G. Felda Hardymon, Josh Lerner and Ann Leamon

Brian Larcombe, CEO of 3i Group, one of the world's largest private equity firms and one of the few publicly listed ones, is deciding how best to use his firm's international network to deliver superior returns to shareholders. This case presents 3i's history and... View Details

Keywords: Business History; Networks; Private Equity; Growth Management; Global Strategy; Public Ownership; Business and Shareholder Relations; Growth and Development Strategy; Financial Services Industry

Educators

29 Jun 2011
News

Facebook's virtual currency draws antitrust complaints from consumer advocates

October 2008
Article

The Small World of Investing: Board Connections and Mutual Fund Returns

By: Lauren Cohen, Andrea Frazzini and Christopher J. Malloy

This paper uses social networks to identify information transfer in security markets. We focus on connections between mutual fund managers and corporate board members via shared education networks. We find that portfolio managers place larger bets on firms they are... View Details

Keywords: Financial Markets; Information Management; Social and Collaborative Networks; Announcements; Investment Portfolio; Investment Return; Investment Funds; Asset Pricing; Governing and Advisory Boards

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Research Summary

PAPERS AND BOOKS IN PROGRESS:

"Social Networks in Republican Shanghai," edited conference volume with Nara Dillion.

"Equity Shares as Political Payoff: Property Rights Reform in Chinese Firms," ms. 2005

"Pathways of Development: The Uncertain... View Details

04 Mar 2019
News

The Strategy Question at the Center of Lyft’s IPO

Clubs

Women in Investing Club

Keywords: Affinity; Venture Capital / Private Equity / LBO

02 Jan 2008
Research & Ideas

Most Popular Stories 2007

Sometimes a valuable customer may be the person who never buys a thing. In a new research paper, Professor Sunil Gupta discusses how to assess the profitability of a customer in a networked setting—a "free" customer who... View Details

Keywords: by Sean Silverthorne

5:30 PM – 8:30 PM EDT, 09 Apr 2019
Career Events

What's Next in My Life?

Do you see change ahead on your horizon, and you're not sure how to quite put it all together? Join this hands-on, two-hour workshop where you will learn frameworks for life and career planning, consider work and life dimensions to help create your next chapter and... View Details

2007
Working Paper

Modularity, Transactions, and the Boundaries of Firms: A Synthesis

By: Carliss Y. Baldwin

This paper constructs a unified theory of the location of transactions and the boundaries of firms. It proposes that systems of production can be viewed as networks of tasks. Transactions, defined as mutually agreed-upon transfers with compensation, are located... View Details

Keywords: Geographic Location; Market Entry and Exit; Market Transactions; Industry Structures; Production; Boundaries; Theory

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2013
Working Paper

Testing Coleman's Social-Norm Enforcement Mechanism: Evidence from Wikipedia

By: Mikolaj J. Piskorski and Andreea Gorbatai

Since Durkheim, sociologists have believed that dense network structures lead to fewer norm violations. Coleman (1990) proposed one mechanism generating this relationship and argued that dense networks provide an opportunity structure to reward those who punish norm... View Details

Keywords: Governance Compliance; Governance Controls; Governing Rules, Regulations, and Reforms; Information Publishing; Social and Collaborative Networks; Social Issues; Societal Protocols

SSRN

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November 2005 (Revised February 2009)
Case

Publicis Groupe: Leading Creative Acquisitions

By: Rosabeth M. Kanter and Ryan Raffaelli

The CEO of a French-based advertising agency network led a series of high-profile acquisitions that created the world's 4th largest global communications company, after a failed strategic alliance taught him lessons about leadership and business relationships. View Details

Keywords: Mergers and Acquisitions; Leadership; Management Succession; Partners and Partnerships; Cooperation; Integration; France

Educators