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2021
Working Paper

Does Who Helps You Impact Your Behavior? Examining the Effects of Social Interactions on Knowledge Sharing in Online Communities

By: Eunkwang Seo, Frank Nagle and Sonali K. Shah

Online communities provide vibrant forums for knowledge sharing and are increasingly being used by individual users and firms to source knowledge and create and capture value. Yet, there is much to learn about how the actions of community members affect other members,... View Details

Keywords: Online Communities; Knowledge Development; Innovation; Reciprocity; Knowledge Sharing; Networks; Innovation and Invention; Interpersonal Communication

July 2020
Teaching Plan

Girls Who Code

By: Brian Trelstad and Amy Klopfenstein

This teaching plan serves as a supplement to HBS Case No. 320-055, “Girls Who Code.” Founded 2012 by former lawyer Reshma Saujani, Girls Who Code (GWC) offered coding education programs to middle- and high school-aged girls. The organization also sought to alter... View Details

2020
Working Paper

Social Interactions in Pandemics: Fear, Altruism, and Reciprocity

By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi

In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google... View Details

Keywords: Social Interactions; Pandemics; Mobility; Cities; SIR Networks; Social Preferences; Social Planner; Targeted Policies; Health Pandemics; Interpersonal Communication; Behavior; Policy

March 6, 2020
Article

Networking Doesn't Have to Be Self-Serving

By: Rosabeth Moss Kanter

How can individual leaders help to tackle big social problems? It can seem like an overwhelming, impossible task. But successful change agents have shown that networking and communication skills are key. They show up, in person, to investigate the issues and build... View Details

Keywords: Network; Self-serving; Social Issues; Networks; Communication; Leading Change

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March–April 2020
Article

Avoid the Pitfalls of A/B Testing

By: Iavor I. Bojinov, Guillaume Sait-Jacques and Martin Tingley

Online experiments measuring whether “A,” usually the current approach, is inferior to “B,” a proposed improvement, have become integral to the product-development cycle, especially at digital enterprises. But often firms make serious mistakes in conducting these... View Details

Keywords: A/B Testing; Experiment Design; Social Networks; Product Development; Performance Improvement; Measurement and Metrics; Social Media

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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

December 2019
Case

Steemit: A New Social Media?

By: Ramon Casadesus-Masanell, Alexander White and Karen Elterman

This case discusses the alternative social media site Steemit, including the principles it was founded on in 2016 and the challenges it faced in 2019. Steemit was a blockchain-based platform that aimed to differentiate itself from other social media companies by... View Details

November 2019
Case

Chief: Role for Carolyn Childers

By: Katherine B. Coffman, Jeffrey J. Bussgang, Kathleen L. McGinn, Katherine Chen and Julia Kelley

In 2018, Carolyn Childers is preparing to launch Chief, a New York-based peer network for women executives, and must decide whether to bring on a co-founder. After becoming the senior vice president of operations at her previous company, Childers was inspired to build... View Details

Keywords: Networking; Founders; Entrepreneurship; Networks; Negotiation

November 2019
Case

Chief: Role for Lindsay Kaplan

By: Katherine B. Coffman, Jeffrey J. Bussgang, Kathleen L. McGinn, Julia Kelley and Katherine Chen

In 2018, Lindsay Kaplan is preparing to meet with Carolyn Childers about the possibility of co-founding Chief, a New York-based peer network for women executives. Kaplan is currently the vice president of communications and brand engagement at a successful mattress... View Details

Keywords: Negotiation; Entrepreneurship; Leadership; North and Central America; United States; New York (state, US); New York (city, NY)

November 2019
Case

Scaling at Chief

By: Katherine B. Coffman, Jeffrey J. Bussgang, Kathleen L. McGinn, Julia Kelley and Katherine Chen

Chief is a New York-based peer network that provides mentorship, support, networking opportunities, and a sense of community to women executives. Co-founders Carolyn Childers and Lindsay Kaplan launched the company in January 2019, and just two months later, Chief has... View Details

Keywords: Entrepreneurship; Leadership Development; Expansion; Growth Management; Customer Satisfaction; North and Central America; United States; New York (state, US); New York (city, NY)

Article

Machine Learning Approaches to Facial and Text Analysis: Discovering CEO Oral Communication Styles

By: Prithwiraj Choudhury, Dan Wang, Natalie A. Carlson and Tarun Khanna

We demonstrate how a novel synthesis of three methods—(1) unsupervised topic modeling of text data to generate new measures of textual variance, (2) sentiment analysis of text data, and (3) supervised ML coding of facial images with a cutting-edge convolutional neural... View Details

Keywords: CEOs; Communication Style; Machine Learning; Spoken Communication; Nonverbal Communication; Personal Characteristics; Analysis; Performance

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September 2019 (Revised February 2020)
Teaching Note

Fishbowl: Scaling Up

By: Leslie K. John

Email mking@hbs.edu for a courtesy copy.

Teaching Note for HBS No. 919-013. Fishbowl is a social media app that allows professionals to connect with other relevant professionals both within their company and... View Details

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

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December 2018 (Revised February 2020)
Case

Fishbowl: Scaling Up

By: Leslie K. John

Fishbowl is a social media app that allows professionals to connect with other relevant professionals both within their company and across industry. Unlike many other social media apps, on which users typically present idealized portraits of themselves, on Fishbowl,... View Details

December 2018
Case

Choosy

By: Jeffrey J. Bussgang and Julia Kelley

Founded in 2017, Choosy is a data-driven fashion startup that uses algorithms to identify styles trending on social media. After manufacturing similar items using a China-based supply chain, Choosy sells them to consumers through its website and social media pages.... View Details

November 2018
Case

Goldman Sachs: The 10,000 Small Businesses Program

By: Leonard A. Schlesinger and Aldo Sesia

In 2008, Goldman Sachs started the 10,000 Small Businesses program to help small businesses in the United States by providing education and a network of support—at no cost —and access to capital. It required the firm to create a new business ecosystem with a wide... View Details

Keywords: Ecosystem; Public/private Partnership; Small Business; Programs; Education; Partners and Partnerships; Philanthropy and Charitable Giving; United States

August 28, 2018
Article

How Intermittent Breaks in Interaction Improve Collective Intelligence

By: Ethan Bernstein, Jesse Shore and David Lazer

People influence each other when they interact to solve problems. Such social influence introduces both benefits (higher average solution quality due to exploitation of existing answers through social learning) and costs (lower maximum solution quality due to a... View Details

Article

The Impact of the 'Open' Workspace on Human Collaboration

By: Ethan Bernstein and Stephen Turban

Organizations’ pursuit of increased workplace collaboration has led managers to transform traditional office spaces into “open,” transparency-enhancing architectures with fewer walls, doors, and other spatial boundaries, yet there is scant direct empirical research on... View Details

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June 2018
Supplement

Knowledge Sharing at REMA 1000 (B)

By: Tatiana Sandino and Olivia Hull

Supplement to HBS No. 118-007, "Knowledge Sharing at REMA 1000 (A)." Chief Human Resources Officer Tore Høylie was proud of REMA 1000 (REMA)’s strong employee engagement with Workplace, Facebook’s corporate social media platform; however, some users complained that the... View Details

Keywords: Social Network; Enterprise Social Media; Facebook; Workplace; Social and Collaborative Networks; Communication Technology; Problems and Challenges; Social Media; Retail Industry; Norway

June 2018 (Revised October 2018)
Teaching Note

Valuing Snap After the IPO Quiet Period (A), (B), and (C)

By: Marco Di Maggio and Benjamin C. Esty

Teaching Note for HBS Nos. 218-095, 218-096, and 218-116. View Details

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