Publications

2011
Other Unpublished Work

Networks as Covers: Evidence from On-Line Social Networks

By: Mikolaj Jan Piskorski

Sociologists have extensively documented that networks influence market exchange through improved matching and vouching. In this paper, I propose that networks can also blunt the signal of market participation, as actors who are on the market surrounded by their... View Details

Keywords: Job Search; Knowledge Use and Leverage; Market Participation; Market Transactions; Social and Collaborative Networks; Online Technology

2017
Working Paper

Peer Effects on the United States Supreme Court

By: Matthew Lilley, Richard Holden and Michael Keane

Using data on essentially every US Supreme Court decision since 1946, we estimate a model of peer effects on the Court. We consider both the impact of justice ideology and justice votes on the votes of their peers. To identify these peer effects we use two instruments.... View Details

Keywords: Supreme Court; Peer Effects; Voting Behavior; Legal System; Courts and Trials; Voting; Behavior

April 2016
Article

Effects of Narrow Networks on Access to High-Quality Cancer Care

By: Stephen M. Schleicher, Samyukta Mullangi and Thomas W. Feeley

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August 2000
Case

Beansprout Networks

By: Teresa M. Amabile and Rasheea Williams

Beansprout Networks is a 3-year-old Internet company designed to foster effective communication between parents and the pediatricians and child-care providers who care for their children. With a significant headstart in the marketplace, it has attracted considerable... View Details

Keywords: Entrepreneurship; Human Resources; Employees; Employee Relationship Management; Recruitment; Business or Company Management; Growth and Development Strategy; Management Practices and Processes; Organizational Culture; Strategy; Health Industry; Information Technology Industry

Educators

14 Jan 2021
Working Paper Summaries

Dog Eat Dog: Measuring Network Effects Using a Digital Platform Merger

Keywords: by Chiara Farronato, Jessica Fong, and Andrey Fradkin

08 Sep 2015
Working Paper Summaries

Through the Grapevine: Network Effects on the Design of Executive Compensation Contracts

Keywords: by Susanna Gallani

2019
Working Paper

The Comprehensive Effects of a Digital Paywall Sales Strategy

By: Doug J. Chung, Ho Kim and Reo Song

This paper explores the multiple and comprehensive effects of a digital paywall sales strategy, an increasingly common means of go-to-market for media firms. Specifically, we examine the effects of a digital paywall on a media firm’s two sources of income—subscription... View Details

Keywords: Digital Paywall; Demand Substitution; Spillover Effect; Synthetic Control; Sales; Strategy; Media; Newspapers; Publishing Industry

18 Nov 2016
Working Paper Summaries

Innovation Network

Keywords: by Daron Acemoglu, Ufuk Akcigit, and William Kerr; Technology

February 2006 (Revised September 2007)
Background Note

Winner-Take-All in Networked Markets

By: Thomas R. Eisenmann

Discusses platform structure in new networked markets, that is, whether a market that exhibits network effects will be served by a single platform or by rival platforms. Defines "platforms" and "platform structure"; describes factors that influence the odds that a... View Details

Keywords: Forecasting and Prediction; Growth Management; Network Effects; Digital Platforms; Internet and the Web

Educators

2013
Working Paper

Competing by Restricting Choice: The Case of Search Platforms

By: Hanna Halaburda and Mikolaj Jan Piskorski

Seminal papers recommend that platforms in two-sided markets increase the number of complements available. We show that a two-sided platform can successfully compete by limiting the choice of potential matches it offers to its customers while charging higher prices... View Details

Keywords: Matching Platform; Indirect Network Effects; Limits To Network Effects; Decision Choices and Conditions; Network Effects; Two-Sided Platforms; Marketplace Matching; Competitive Strategy

Article

Designing Social Networks: Joint Tasks and the Formation and Endurance of Network Ties

By: Sharique Hasan and Rembrand Koning

Can managers influence the formation of organizational networks? In this article, we evaluate the effect of joint tasks on the creation of network ties with data from a novel field experiment with 112 aspiring entrepreneurs. During the study, we randomized individuals... View Details

Keywords: Accelerators; Entrepreneur; Social Networks; Field Experiment; Entrepreneurship; Organizational Design; Networks; Social and Collaborative Networks; Social Media; Information Technology Industry; India

February 2017
Article

Resident Networks and Corporate Connections: Evidence from World War II Internment Camps

By: Lauren Cohen, Umit Gurun and Christopher J. Malloy

We demonstrate that simply by using the ethnic makeup surrounding a firm’s location, we can predict, on average, which trade links are valuable for firms. Using customs and port authority data on the international shipments of all U.S. publicly traded firms, we show... View Details

Keywords: Information Networks; Trade Links; Firm Behavior; Networks; Geographic Location; Ethnicity; Organizations; Trade

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This paper proposes that networks can act as covers which allow actors to participate in markets while maintaining a plausible excuse that they are not. Such covers are most valuable to actors in long-term relationships, as those who are already... View Details

Research Summary

Managing Networked Businesses

By: Thomas R. Eisenmann

Platform-based businesses that leverage network effects face a distinctive set of management challenges. A platform encompasses components and rules that facilitate interactions between the platform's users. A platform-based product or service exhibits a network... View Details

17 Apr 2024
Podcast

Western Governors University: Pursuing the network effects of competency based education

WGU President Scott Pulsipher returns to the podcast for an update on the online institution’s mission to extend the reach of skill-oriented instruction. The HBS grad argues that the focus on competency rather than credit hours democratizes college access and economic... View Details

2023
Working Paper

Mapping Organizational-Level Networks Using Individual-Level Connections: Evidence from Online Professional Networks

By: Shelley Xin Li, Frank Nagle and Aner Zhou

Organization-level networks facilitate the flow of information and business activities in the economy. Prior research relies solely on high-level connections to measure these networks. Therefore, to understand the role of employee connections at all job levels in... View Details

Keywords: Networks; Value; Social and Collaborative Networks; Innovation and Invention; Knowledge Sharing; Employees; Social Media

August 2022
Background Note

Retail Media Networks

By: Eva Ascarza, Ayelet Israeli and Celine Chammas

In 2022, retail media was one of the fastest growing segments in digital advertising. A retail media network (RMN) allows a retailer to use its assets for advertising. Retailers set up an advertising business by allowing marketers to buy advertising space across their... View Details

Educators

November 2019
Article

The Relevance of Broker Networks for Information Diffusion in the Stock Market

By: Marco Di Maggio, Francesco Franzoni, Amir Kermani and Carlo Sommavilla

This paper shows that the network of relationships between brokers and institutional investors shapes information diffusion in the stock market. We exploit trade-level data to show that central brokers gather information by executing informed trades, which is then... View Details

Keywords: Broker Networks; Institutional Investors; Asset Prices; Business and Shareholder Relations; Institutional Investing; Information; Knowledge Dissemination; Financial Markets; Asset Pricing