Network Externalities - Publications - Faculty & Research - Harvard Business School

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September 2006 (Revised October 2007)
Module Note

Platform-Mediated Networks: Definitions and Core Concepts

By: Thomas R. Eisenmann

Defines platform-mediated networks and introduces concepts central to their study. First, it defines networks and network effects; explains how network effects influence users' willingness-to-pay for network access; describes factors that determine the strength of... View Details

Keywords: Consumer Behavior; Network Effects; Digital Platforms; Information Technology; Information Infrastructure; Digital Platforms

January 2015 (Revised September 2017)
Case

Omar Selim: Building a Values-Based Asset Management Firm (A)

By: George Serafeim, Rebecca Henderson and Shannon Gombos

The sustainable investing market was a recent phenomenon in the first decade of the 21st century. However, an increasing number of investors began to integrated Environmental, Social and Governance (ESG) issues in investment decisions. At Barclays Capital, Omar Selim... View Details

June 2013 (Revised March 2015)
Case

Open Innovation at Siemens

By: Karim R. Lakhani, Katja Hutter, Stephanie Healy Pokrywa and Johann Fuller

The case describes Siemens, a worldwide innovator in the Energy, Healthcare, Industry, and Infrastructure & Cities sectors, and its efforts to develop and commercialize new R&D through open innovation, including internal and external crowdsourcing contests. Emphasis is... View Details

Keywords: Innovation; Innovation Management; Crowdsourcing; Innovation Strategy; Innovation and Management; Knowledge Management; Knowledge Sharing; Research and Development; Information Technology; Energy Industry; Health Industry; Green Technology Industry; Manufacturing Industry

Innovation Without Borders; Innovations, Summer 2007

The willingness to connect with an external network is key in an environment where products and services are themselves increasingly inter-connected. We see trends in this direction for a variety of reasons, either because uses of multiple products are complementary... View Details

March 2024
Case

East Rock Capital: 'Talent Is the Best Asset Class'

By: Boris Groysberg, Sarah L. Abbott and Izzy Yeoh

Adam Shapiro and Graham Duncan launched East Rock Capital, LLC in 2006 with a seed investment from Stuart Miller, executive chairman of Lennar Corporation. East Rock managed long-term assets for high-net-worth families, primarily working with external managers who had... View Details

Keywords: Alternative Assets; Hiring; HNW Products And Services; Recruiting; Hedge Funds; Wealth Management; Asset Management; Private Equity; Financial Institutions; Marketing Strategy; Growth and Development Strategy; Competitive Advantage; Financial Services Industry; United States

August 2011
Supplement

InnoCentive.com (C)

By: Karim R. Lakhani and Eric Lonstein

InnoCentive.com enables clients to tap into internal and external solver networks to address various business issues. This case focuses on the outcome of InnoCentive's decision to post challenges related to environmental issues created by the Gulf Oil Spill. It reviews... View Details

Keywords: Innovation and Invention; Networks; Decisions; Outcome or Result; Pollutants; Natural Disasters; Natural Environment; Japan

February 1998 (Revised August 1998)
Case

Teradyne, Inc.: Nothing Ventured, Nothing Gained

By: Joseph B. Lassiter III

Alexander d'Arbeloff, Teradyne's founder and CEO, is launching his company into the software and network testing business. He has acquired three external start-ups and is beginning to integrate them with the rest of the company. While Teradyne's core... View Details

Keywords: Acquisition; Business Startups; Corporate Entrepreneurship; Leadership Style; Success; Horizontal Integration

August 2011
Supplement

InnoCentive.com (B)

By: Karim R. Lakhani and Eric Lonstein

InnoCentive.com enables clients to tap into internal and external solver networks to address various business issues. In 2008, InnoCentive introduced "InnoCentive@Work" (lC@W), which recognized clients' reluctance to share problems and solutions with an external... View Details

Keywords: Digital Platforms; Cost vs Benefits; Intellectual Property; Networks; Collaborative Innovation and Invention; Product; Groups and Teams; Communication Technology

2017
Working Paper

The Right Mix: Angels, Venture Capitalists, and the Assembly of Entrepreneurial Resources

By: Benjamin Hallen and Rory McDonald

New ventures rely on external relationships for capital, knowledge, and networks. We examine how ventures assemble these resources—and whether they are all accessible from the same sources—in relationships with two types of investors: venture capital firms and angels.... View Details

Keywords: Business Ventures; Venture Capital; Entrepreneurship

21 Jun 2012
Working Paper Summaries

Information Technology and Boundary of the Firm: Evidence from Plant-Level Data

Keywords: by Chris Forman & Kristina McElheran

November 2020
Article

Disrupting the Disruptors or Enhancing Them? How Blockchain Re‐Shapes Two‐Sided Platforms

By: Daniel Trabucchi, Antonella Moretto, Tommaso Buganza and Alan MacCormack

The importance of platform‐based businesses in the modern economy is growing continuously and becoming increasingly relevant. Specifically, the deployment of digital technologies has enhanced the applicability of two‐sided business models, enabling companies to act not... View Details

Keywords: Blockchain; Two-Sided Platforms; Business Model; Innovation and Invention; Technological Innovation

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December 2020
Article

Taking Innovation to the Streets: Micro-geography, Physical Structure and Innovation

By: Maria P. Roche

In this paper, we analyze how the physical layout of cities affects innovation by influencing the organization of knowledge exchange. We exploit a novel data set covering all Census Block Groups in the contiguous United States with information on innovation outcomes,... View Details

Keywords: Microgeography; Innovation; Street Infrastructure; Knowledge Exchange; Interactions; Geography; City; Innovation and Invention; Knowledge Sharing

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Taking Innovation to the Streets: Microgeography, Physical Structure, and Innovation

In this paper, I analyze how the physical layout of cities affects innovation by influencing the organization of knowledge exchange. I exploit a novel data set covering all census block groups in the contiguous United States with information on innovation outcomes,... View Details

C. Fritz Foley

C. Fritz Foley is the Andre R. Jakurski Professor of Business Administration and Senior Associate Dean (SAD) for External Relations. As SAD, Foley works with ER to enhance alumni engagement, expand opportunities for lifelong learning, and develop fundraising... View Details

August 2007 (Revised May 2009)
Case

PlaNet Finance: Broad Scope in Microfinance

By: Andrei Hagiu and Elena Corsi

PlaNet Finance was a French NGO providing technical support and training services to microfinance institutions (i.e., institutions providing financial services to the poor) and other microfinance actors, rating of microfinance institutions and management, and advisory... View Details

Keywords: Financial Institutions; Microfinance; Growth Management; Networks; Non-Governmental Organizations; Service Industry; France

Article

Beyond the Target Customer: Social Effects in CRM Campaigns

By: Eva Ascarza, Peter Ebbes, Oded Netzer and Matthew Danielson

Customer relationship management (CRM) campaigns have traditionally focused on maximizing the profitability of the targeted customers. The authors demonstrate that in business settings characterized by network externalities, a CRM campaign that is aimed at changing the... View Details

Keywords: Social Effects; Field Experiment; Mobile; Customer Relationship Management; Network Effects; Consumer Behavior

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January – February 2011
Article

How to Design a Winning Business Model

By: Ramon Casadesus-Masanell and Joan E. Ricart

Most executives believe that competing through business models is critical for success, but few have come to grips with how best to do so. One common mistake is enterprises' unwavering focus on creating innovative models and evaluating their efficacy in standalone... View Details

Keywords: Business Model; Design; Strength and Weakness; Competitive Strategy; Competitive Advantage

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Research Summary

The Venture Capitalist as Entrepreneur

Noam's dissertation, entitled The Venture Capitalist as Entrepreneur, won Harvards George S. Dively award for dissertation research. In the dissertation, Noam examined the organizational dynamics and characteristics within venture capital firms themselves, viewing... View Details

February 2013
Article

Exceptional Boards: Environmental Experience and Positive Deviance from Institutional Norms

By: Judith Walls and Andrew J. Hoffman

This paper explores the phenomenon of positive organizational deviance from institutional norms by establishing practices that protect or enhance the natural environment. Seeking to explain why some organizations practice positive environmental deviance while others do... View Details

Keywords: Corporate Social Responsibility and Impact; Networks; Organizational Culture; Governing and Advisory Boards; Environmental Management

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June 2005 (Revised November 2005)
Case

Hale and Dorr (A)

Highlights how word-of-mouth is crucial in the acquisition of new customers. Specifically, it shows the existence of both internal (to the firm) and external markets for customer leads. View Details

Keywords: Marketing Communications; Social and Collaborative Networks; Sales; Service Industry

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