Publications

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2016
Chapter

User-Generated Content and Social Media

By: Michael Luca

This paper documents what economists have learned about user-generated content (UGC) and social media. A growing body of evidence suggests that UGC on platforms ranging from Yelp to Facebook has a large causal impact on economic and social outcomes ranging from... View Details

Keywords: User-generated Content; Crowdsourcing; Design Economics; Internet and the Web; Marketing; Economics; Media; Social Media

Web

Community | HBS Online

The Harvard Business School Online Community is a global network of like-minded business professionals. You can connect with and learn from peers before, during, and after your course through our Community... View Details

November 2021
Article

Ratings, Reviews, and the Marketing of New Products

By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek

We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new... View Details

Keywords: Online Reviews; Product Ratings; Social Networks; Word Of Mouth; Pricing; User-generated Content; Advertising; Product Marketing; Price; Consumer Behavior; Product Positioning; Social Media

30 Mar 2009
Research & Ideas

Professional Networks in China and America

States a rich field of study and one that's a specialty for Harvard Business School professor Roy Chua. Chua, a native of Singapore who speaks fluent Mandarin, draws on human psychology to better understand important social processes in... View Details

Keywords: by Sean Silverthorne

October 1999 (Revised October 2000)
Case

Women's World Banking: Catalytic Change Through Networks

By: James E. Austin and Susan Hamerling

Describes the evolution of Women's World Banking, an international microfinance nonprofit promoting financial access for poor women. Explores the organization's development of different types of networks to achieve its mission. View Details

Keywords: Mission and Purpose; History; Networks; Microfinance; Nonprofit Organizations; Gender; Growth and Development Strategy

Educators

Purchase

October 14, 2019
Article

Designing Better Online Review Systems

By: Geoff Donaker, Hyunjin Kim and Michael Luca

Online reviews are transforming the way consumers choose products and services of all sorts. We turn to TripAdvisor to plan a vacation, Zocdoc to find a doctor, and Yelp to choose a new restaurant. Reviews can create value for buyers and sellers alike, but only if they... View Details

Keywords: Reviews; Internet and the Web; Design; Quality; Reputation

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2016
Working Paper

Designing Online Marketplaces: Trust and Reputation Mechanisms

By: Michael Luca

Online marketplaces have proliferated over the past decade, creating new markets where none existed. By reducing transaction costs, online marketplaces facilitate transactions that otherwise would not have occurred and enable easier entry of small sellers. One central... View Details

Keywords: Trust; E-commerce; Market Design

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29 Sep 2020
Blog Post

Virtual Networking Tips from HBS Career Coaches

When you think of networking, the image that may come to mind first is shaking hands and filling up a small plate with cheese and crackers at a networking event. For some, this type of networking comes... View Details

07 Feb 2019
Working Paper Summaries

Immigrant Networking and Collaboration: Survey Evidence from CIC

Keywords: by Sari Pekkala Kerr and William R. Kerr

Video

Our Difference - Social Learning

Web

Marketing - HBS Online

knowledge through polls, quizzes, and problem-solving exercises designed to accelerate and reinforce your learning. Exchange ideas with your classmates, broaden your perspective, and challenge your worldview. Social Join a global... View Details

2020
Working Paper

Socioeconomic Network Heterogeneity and Pandemic Policy Response

By: Abhishek Nagaraj, Mohammad Akbarpour, Cody Cook, Aude Marzuoli, Simon Mongey, Matteo Saccarola, Pietro Tebaldi, Shoshana Vasserman and Hanbin Yang

We develop and implement a heterogeneous-agents network-based empirical model to analyze alternative policies during a pandemic outbreak. We combine several data sources, including information on individuals’ mobility and encounters across metropolitan areas,... View Details

Keywords: Health Pandemics; Policy; Outcome or Result; Analysis

2024
Working Paper

The Effect of a System for Sharing Best Practices Within Pre-existing Peer Networks

By: Shelley Xin Li and Tatiana Sandino

Peer networks, such as enterprise social networks (ESNs), can facilitate knowledge transfer across employees. However, such systems can also lead to information overload or difficulty in finding useful information. We examine data from a natural field experiment where... View Details

Keywords: Social and Collaborative Networks; Communication Technology; Knowledge Sharing; Sales

28 Aug 2009
News

Faculty Pioneer Award in Social Entrepreneurship

02 Jun 2014
Research & Ideas

Excerpt: ‘A Social Strategy’

benefit. In the first instance, observing that millions of people connect to friends and strangers on social platforms, some companies have chosen to enter the fray in a similar way, by trying to build relationships with people View Details

Article

The Global Rise of Democracy: A Network Account

By: Magnus Thor Torfason and Paul Ingram

We examine the influence of an interstate network created by intergovernmental organizations (IGOs) on the global diffusion of democracy. We propose that IGOs facilitate this diffusion by transmitting information between their member states and by interpreting that... View Details

Keywords: International Relations; Networks; Society; Transformation; Power and Influence; Country; Globalization