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Show Results For
- All HBS Web
(2,747)
- People (11)
- News (497)
- Research (1,671)
- Events (20)
- Multimedia (3)
- Faculty Publications (676)
- 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
McFowland III, Edward, and Cosma Rohilla Shalizi. "Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations." Journal of the American Statistical Association 118, no. 541 (2023): 707–718.
- 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
Amabile, Teresa M., and Rasheea Williams. "Beansprout Networks." Harvard Business School Case 801-079, August 2000.
- February 2006 (Revised September 2007)
- Background Note
Winner-Take-All in Networked Markets
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
Eisenmann, Thomas R. "Winner-Take-All in Networked Markets." Harvard Business School Background Note 806-131, February 2006. (Revised September 2007.)
- 14 Jan 2021
- Working Paper Summaries
Dog Eat Dog: Measuring Network Effects Using a Digital Platform Merger
- 7 Aug 2009 - 11 Aug 2009
- Conference Presentation
Compelled to Help:Effects of Direct and Indirect Exchange on Perceived Obligation in Professional Networks
By: Roy Y.J. Chua, Bilian Sullivan and Michael W. Morris
- 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
Halaburda, Hanna, and Mikolaj Jan Piskorski. "Competing by Restricting Choice: The Case of Search Platforms." Harvard Business School Working Paper, No. 10-098, May 2010. (Revised June 2010, March 2011, August 2011, March 2013.)
- 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
- November 2019
- Article
When and Why Defaults Influence Decisions: A Meta-analysis of Default Effects
By: Jon M. Jachimowicz, Shannon Duncan, Elke U. Weber and Eric J. Johnson
When people make decisions with a pre-selected choice option—a “default”—they are more likely to select that option. Because defaults are easy to implement, they constitute one of the most widely employed tools in the choice architecture toolbox. However, to decide... View Details
Jachimowicz, Jon M., Shannon Duncan, Elke U. Weber, and Eric J. Johnson. "When and Why Defaults Influence Decisions: A Meta-analysis of Default Effects." Behavioural Public Policy 3, no. 2 (November 2019): 159–186.
- Research Summary
Managing Networked Businesses
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
- 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
Piskorski, Mikolaj Jan. "Networks as Covers: Evidence from On-Line Social Networks." September 2011.
- 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
Hasan, Sharique, and Rembrand Koning. "Designing Social Networks: Joint Tasks and the Formation and Endurance of Network Ties." Art. 4. Journal of Organization Design 9 (2020).
- 27 Sep 2006
- Working Paper Summaries
How Does Foreign Direct Investment Promote Economic Growth? Exploring the Effects of Financial Markets on Linkages
- 2017
- Case
Uncommon Schools (A): A Network of Networks
By: John J-H Kim and Sarah McAra
In 2013, Brett Peiser, CEO of the charter school management organization (CMO) Uncommon Schools, is reassessing the nonprofit’s strategy. For nearly 10 years, Uncommon had fulfilled its mission to bring high-quality education to students in low-income, urban areas... View Details
Keywords: Charter Schools; Nonprofit Organizations; Teaching; Talent Management; Innovation; Organization Structure; Education; Early Childhood Education; Middle School Education; Organizational Structure; Performance Consistency; Strategy; Collaborative Innovation and Invention; Education Industry
Kim, John J-H, and Sarah McAra. "Uncommon Schools (A): A Network of Networks." Harvard Business Publishing Case, 2017. (Case No. PEL-079.)
- 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
Li, Shelley Xin, Frank Nagle, and Aner Zhou. "Mapping Organizational-Level Networks Using Individual-Level Connections: Evidence from Online Professional Networks." Harvard Business School Working Paper, No. 24-010, August 2023.
- spring 2003
- Article
The Effects of Diversity on Business Performance: Report of the Diversity Research Network
By: T. Kochan, K. Bezrukova, R. Ely, S. Jackson, A. Joshi, K Jehn, J. Leonard, D. Levine and D. Thomas
Kochan, T., K. Bezrukova, R. Ely, S. Jackson, A. Joshi, K Jehn, J. Leonard, D. Levine, and D. Thomas. "The Effects of Diversity on Business Performance: Report of the Diversity Research Network." Human Resource Management 42, no. 1 (spring 2003): 3–21.
- 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
Keywords: Advertisers; Advertising Media; Media And Broadcasting Industry; Retail; Retail Analytics; Retail Promotion; Retailing; Ecommerce; E-Commerce Strategy; E-commerce; Marketing Communication; Targeting; Targeted Advertising; Targeted Marketing; Advertising; Marketing; Marketing Communications; Marketing Strategy; Brands and Branding; Media; Marketing Channels; Retail Industry; Consumer Products Industry; Advertising Industry; United States
Ascarza, Eva, Ayelet Israeli, and Celine Chammas. "Retail Media Networks." Harvard Business School Background Note 523-029, August 2022.
- 26 Oct 1997 - 29 Oct 1997
- Conference Presentation
Different Strokes for Different Folks: Towards a Contingent Theory of Network Effects
By: Ranjay Gulati
- May 2020
- Article
Inventor Gender and the Direction of Invention
By: Rembrand Koning, Sampsa Samila and John-Paul Ferguson
We study whether increasing the share of female inventors leads to more biomedical inventions that focus on the needs of women. After accounting for detailed disease-technology, disease-year, and technology-year fixed effects, we find that a 10 percentage point... View Details
Koning, Rembrand, Sampsa Samila, and John-Paul Ferguson. "Inventor Gender and the Direction of Invention." AEA Papers and Proceedings 110 (May 2020): 250–254.
- March 2025
- Case
GiveDirectly: Can Direct Cash Transfers End Extreme Poverty?
By: Natalia Rigol, Benjamin N. Roth, Sarah Mehta and John Schultz
Founded in 2008, GiveDirectly was a nonprofit organization that used direct cash transfers—giving people cash via mobile money—to combat poverty worldwide. By August 2024, the organization had transferred over $800 million to poor people in targeted communities and... View Details
- Article
Two-Sided Platforms: Product Variety and Pricing Structures
By: Andrei Hagiu
This paper provides a new modeling framework to analyze two-sided platforms connecting producers and consumers. In contrast to the existing literature, indirect network effects are determined endogenously, through consumers' taste for variety and producer competition.... View Details
Keywords: Pricing Structure; Indirect Network Effects; Product Variety; Price; Network Effects; Two-Sided Platforms; Product; Renting or Rental; Competition
Hagiu, Andrei. "Two-Sided Platforms: Product Variety and Pricing Structures ." Journal of Economics & Management Strategy 18, no. 4 (Winter 2009).