Publications

Article

Contagion of Cooperation in Static and Fluid Social Networks

By: Jillian J. Jordan, David G. Rand, Samuel Arbesman, James H. Fowler and Nicholas A. Christakis

Cooperation is essential for successful human societies. Thus, understanding how cooperative and selfish behaviors spread from person to person is a topic of theoretical and practical importance. Previous laboratory experiments provide clear evidence of social... View Details

Keywords: Social Contagion; Social Networks; Cooperation; Behavior; Social Media

5 Jul 2012
Conference Presentation

Social Networks and Customer Strategy

By: Vineet Kumar

Keywords: Social Networking; Social Platforms; Social and Collaborative Networks

May–June 2019
Article

U-Shaped Conformity in Online Social Networks

By: Monic Sun, Michael Zhang and Feng Zhu

We explore how people balance their needs to belong and to be different from their friends by studying their choices of a virtual-house wall color on a leading Chinese social-networking site. The setting enables us to randomize both the popular color and the adoption... View Details

Keywords: Conformity; Normative Social Influence; Social Networks; Field Experiment; Social and Collaborative Networks; Behavior; Attitudes; Social Media

2017
Working Paper

Shopping for Confirmation: How Disconfirming Feedback Shapes Social Networks

By: Paul Green Jr., Francesca Gino and Bradley Staats

Many organizations employ interpersonal feedback processes as a structured means of informing and motivating employee improvement. Ample evidence suggests that these feedback processes are largely ineffective, and despite a wealth of prescriptive literature, these... View Details

Keywords: Developmental Feedback; Self-concept; Positive Illusions; Social Network; Threat; Identity; Social and Collaborative Networks; Behavior; Performance; Social Media

SSRN

October 2022
Article

Revisiting Extraversion and Leadership Emergence: A Social Network Churn Perspective

By: Blaine Landis, Jon M. Jachimowicz, Dan J. Wang and Robert W. Krause

One of the classic relationships in personality psychology is that extraversion is associated with emerging as an informal leader. However, recent findings raise questions about the longevity of extraverted individuals as emergent leaders. Here, we adopt a social... View Details

Keywords: Extraversion; Social Networks; Emergent Leadership; Leadership Development; Personal Characteristics; Perception

March 2016
Article

Environmental Demands and the Emergence of Social Structure: Technological Dynamism and Interorganizational Network Forms

By: Adam Tatarynowicz, Maxim Sytch and Ranjay Gulati

This study investigates the origins of variation in the structures of interorganizational networks across industries. We combine empirical analyses of existing interorganizational networks in six industries with an agent-based simulation model of network emergence.... View Details

Keywords: Interorganizatonal Relationships; Social Networks; Network Emergence; Interorganizational Networks; Information Technology; Networks; Organizational Structure; Social and Collaborative Networks; Social Media

December 2016
Article

Social Network Utilization and the Impact of Academic Research in Marketing

By: Stav Rosenzweig, Amir Grinstein and Elie Ofek

The forces that drive the impact of academic research articles in the marketing discipline are of great interests to authors, editors, and the discipline’s policy makers. A key understudied driver is social network utilization by academic researchers. In this paper, we... View Details

Keywords: Social Networks; Academic Reserach; Human Capital; Country Of Origin; Scientometrics; Social and Collaborative Networks; Research; Marketing; Gender; Human Resources; Social Media

2023
Article

Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations.

By: Edward McFowland III and Cosma Rohilla Shalizi

Social influence cannot be identified from purely observational data on social networks, because such influence is generically confounded with latent homophily, that is, with a node’s network partners being informative about the node’s attributes and therefore its... View Details

Keywords: Causal Inference; Homophily; Social Networks; Peer Influence; Social and Collaborative Networks; Power and Influence; Mathematical Methods

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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

27 Jul 2009
Research & Ideas

Social Network Marketing: What Works?

When marketers want to reach users of social networks such as Facebook, MySpace, or Cyworld, they have two choices: buy advertising or start a viral campaign. New research by Harvard Business School... View Details

Keywords: by Sarah Jane Gilbert; Advertising; Publishing; Retail

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

January 2021 (Revised October 2021)
Case

eToro: Building the World's Largest Social Trading Network

By: Elie Ofek and Danielle Golan

Social trading platform eToro was preparing for the launch of its expanded offering in the U.S. The company faced critical decisions regarding product-market fit, go-to-market strategy, positioning and monetization. Moreover, it faced the challenge of how best to make... View Details

Keywords: Social Trading Platform; Investment; Social and Collaborative Networks; Marketing Strategy; Expansion; Digital Platforms

Educators

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05 Nov 2009
News

Understanding Users of Social Networks

Keywords: Professor Mikolaj Piskorski

14 Sep 2009
Research & Ideas

Understanding Users of Social Networks

If the ongoing social networking revolution has you scratching your head and asking, "Why do people spend time on this?" and "How can my company benefit from the View Details

Keywords: by Sean Silverthorne; Advertising; Publishing

2013
Chapter

Privacy Breach Analysis in Social Networks

By: Frank Nagle

Over the past 5–10 years, online social networks have rapidly expanded, and as of March 2012 the largest online social network, Facebook, had over 901 million active members. The wealth of information users post in their social network profiles, as well as the... View Details

Keywords: Crime and Corruption; Social and Collaborative Networks; Social Media; Cybersecurity; Analytics and Data Science

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2013
Working Paper

Networks as Covers: Evidence from an On-Line Social Network

By: Mikolaj Jan Piskorski

This paper proposes that networks give actors a cover by giving them the excuse of sociability to engage in normatively prohibited market behaviors. I apply this hypothesis to actors in long-term exclusive relationships who are surreptitiously seeking new relationships... View Details

Keywords: Strategy; Behavior; Ethics; Relationships; Social and Collaborative Networks