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- All HBS Web
(1,826)
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- News (243)
- Research (1,097)
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- 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- Other Unpublished Work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.
- 27 Jun 2016
- Research & Ideas
These Management Practices, Like Certain Technologies, Boost Company Performance
perceived as a threat to their power. “If you have a company that is strong, you have people utilizing data across all levels of the organization, rather than having one person who makes all the decisions based on gut feeling.” The first... View Details
Keywords: by Michael Blanding
- 30 Nov 2021
- In Practice
What's the Role of Business in Confronting Climate Change?
The 26th annual United Nations Climate Change Conference of the Parties, also known as COP26, ended with a hard-fought pact that called on businesses and governments to meet their climate change goals faster. The event followed an August report by the Intergovernmental... View Details
Keywords: by Lynn Schenk and Dina Gerdeman
- 19 Nov 2014
- Working Paper Summaries
The Search for Benchmarks: When Do Crowds Provide Wisdom?
- 2021
- Article
Fair Influence Maximization: A Welfare Optimization Approach
By: Aida Rahmattalabi, Shahin Jabbari, Himabindu Lakkaraju, Phebe Vayanos, Max Izenberg, Ryan Brown, Eric Rice and Milind Tambe
Several behavioral, social, and public health interventions, such as suicide/HIV prevention or community preparedness against natural disasters, leverage social network information to maximize outreach. Algorithmic influence maximization techniques have been proposed... View Details
Rahmattalabi, Aida, Shahin Jabbari, Himabindu Lakkaraju, Phebe Vayanos, Max Izenberg, Ryan Brown, Eric Rice, and Milind Tambe. "Fair Influence Maximization: A Welfare Optimization Approach." Proceedings of the AAAI Conference on Artificial Intelligence 35th (2021).
- 2012
- Chapter
When Identities, Interests, and Information Collide: How Subgroups Create Hidden Profiles in Teams
By: Jeffrey T. Polzer, Lisa Kwan and Lisa B. Kwan
Purpose—We review how team members' identities and interests affect team functioning, paying special attention to subgroup dynamics triggered by fault lines and coalitions. This review sets the stage for describing novel pathways through which identities and... View Details
Polzer, Jeffrey T., Lisa Kwan, and Lisa B. Kwan. "When Identities, Interests, and Information Collide: How Subgroups Create Hidden Profiles in Teams." In Looking Back, Moving Forward: A Review of Group and Team-Based Research. v.15, edited by Margaret A. Neale and Elizabeth A. Mannix, 359–381. Research on Managing Groups and Teams. Bingley, UK: Emerald Group Publishing, 2012.
- 21 Mar 2019
- HBS Case
The Ferrari Way
competitors, including Porsche and Lamborghini, responded by adding cutting-edge technologies, increasing production, and venturing into untraditional models, such as (gasp!) sport utility vehicles. Ferrari so far has remained true to its... View Details
- 22 Aug 2005
- Research & Ideas
Restoring a Global Economy, 1950–1980
processing, and marketing of commodities. By 1980 manufacturing FDI was larger than the natural resource and service sectors combined. In services, while transport and utility investments were no longer important, from the 1960s... View Details
Keywords: by Geoffrey Jones
- 17 Aug 2012
- Working Paper Summaries
Dividends as Reference Points: A Behavioral Signaling Approach
Keywords: by Malcolm Baker & Jeffrey Wurgler
- August 2019
- Case
Twiggle: E-Commerce with Semantic Search
By: Shane Greenstein and Danielle Golan
Four years after being founded, in 2014, by former Google executives Amir Konigsberg (CEO) and Adi Avidor (CTO), Twiggle had developed a search enhancement that plugged into an online merchant’s existing framework. The company utilized advanced structuring and... View Details
Keywords: Search Technology; Customer Acquisition; Internet and the Web; Technological Innovation; Commercialization; Growth and Development Strategy; E-commerce; Technology Industry; Israel
Greenstein, Shane, and Danielle Golan. "Twiggle: E-commerce with Semantic Search." Harvard Business School Case 620-025, August 2019.
- November–December 2015
- Article
Active Postmarketing Drug Surveillance for Multiple Adverse Events
By: Joel Goh, Margrét V. Bjarnadóttir, Mohsen Bayati and Stefanos A. Zenios
Postmarketing drug surveillance is the process of monitoring the adverse events of pharmaceutical or medical devices after they are approved by the appropriate regulatory authorities. Historically, such surveillance was based on voluntary reports by medical... View Details
Keywords: Drug Surveillance; Health Care; Stochastic Models; Queueing; Diffusion Approximation; Brownian Motion; Health Care and Treatment; Analytics and Data Science; Analysis
Goh, Joel, Margrét V. Bjarnadóttir, Mohsen Bayati, and Stefanos A. Zenios. "Active Postmarketing Drug Surveillance for Multiple Adverse Events." Operations Research 63, no. 6 (November–December 2015): 1528–1546. (Finalist, 2012 INFORMS Health Applications Society Pierskalla Award.)
- Research Summary
The role of the manager in cross-sector interactions
My second stream of research takes the individual manager as the unit of analysis in examining cross-sector interactions. Two papers explore processes and mechanisms that allow managers to cross sectoral boundaries more effectively.
The first paper... View Details
The first paper... View Details
- January 2023
- Article
The Dark Side of Machiavellian Rhetoric: Signaling in Reward-Based Crowdfunding Performance
By: Goran Calic, Rene Arseneault and Maryam Ghasemaghaei
In this study, we explore the impact of Machiavellian rhetoric on fundraising within the increasingly important context of online crowdfunding. The “all-or-nothing” funding model used by the world’s largest crowdfunding platform, Kickstarter, may be an attractive... View Details
Calic, Goran, Rene Arseneault, and Maryam Ghasemaghaei. "The Dark Side of Machiavellian Rhetoric: Signaling in Reward-Based Crowdfunding Performance." Journal of Business Ethics 182, no. 3 (January 2023): 875–896.
- January 2020
- Article
The Market Reacts Quickly: Changes in Paclitaxel Vascular Device Purchasing Within the Ascension Healthcare System
By: Peter P. Monteleone, Subhash Banerjee, Priya Kothapalli, Ariel Dora Stern, Daniel Fehder, Ron Ginor, Dominic Vollmar, Edward T. A. Fry and Mark J. Pirwitz
Background. A meta-analysis of trials in endovascular therapy suggested an increased mortality associated with treatment exposure to paclitaxel. Multiple publications and corrections of prior data were performed, and the United States Food and Drug Administration has... View Details
Monteleone, Peter P., Subhash Banerjee, Priya Kothapalli, Ariel Dora Stern, Daniel Fehder, Ron Ginor, Dominic Vollmar, Edward T. A. Fry, and Mark J. Pirwitz. "The Market Reacts Quickly: Changes in Paclitaxel Vascular Device Purchasing Within the Ascension Healthcare System." Journal of Invasive Cardiology 32, no. 1 (January 2020).
- 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
Lilley, Matthew, Richard Holden, and Michael Keane. "Peer Effects on the United States Supreme Court." Working Paper, February 2017.
- 28 Sep 2012
- Working Paper Summaries
Self-Serving Altruism? When Unethical Actions That Benefit Others Do Not Trigger Guilt
- Research Summary
Overview
Downstream businesses that utilize global suppliers frequently use auditing programs to monitor their suppliers’ working conditions and are often deployed to address reputational concerns associated with procuring from unregulated suppliers. Despite their widespread... View Details
- 2025
- Working Paper
The Impact of Input Inaccuracy on Leveraging AI Tools: Evidence from Algorithmic Labor Scheduling
By: Caleb Kwon, Antonio Moreno and Ananth Raman
Problem Definition: Considerable academic and practitioner attention is placed on the value of ex-post interactions (i.e., overrides) in the human-AI interface. In contrast, relatively little attention has been paid to ex-ante human-AI interactions (e.g., the... View Details
Kwon, Caleb, Antonio Moreno, and Ananth Raman. "The Impact of Input Inaccuracy on Leveraging AI Tools: Evidence from Algorithmic Labor Scheduling." Working Paper, January 2025.
- Article
Accuracy First: Selecting a Differential Privacy Level for Accuracy-Constrained ERM
By: Katrina Ligett, Seth Neel, Aaron Leon Roth, Bo Waggoner and Steven Wu
Traditional approaches to differential privacy assume a fixed privacy requirement ϵ for a computation, and attempt to maximize the accuracy of the computation subject to the privacy constraint. As differential privacy is increasingly deployed in practical settings, it... View Details
Ligett, Katrina, Seth Neel, Aaron Leon Roth, Bo Waggoner, and Steven Wu. "Accuracy First: Selecting a Differential Privacy Level for Accuracy-Constrained ERM." Journal of Privacy and Confidentiality 9, no. 2 (2019).
- 23 Oct 2000
- Research & Ideas
The Strategy-Focused Organization
the equivalent of about 12 billion gallons of gasoline per year, so that even small changes in operating costs per gallon had an enormous impact on the bottom line. Better utilization of existing assets created additional improvements in... View Details
Keywords: by Robert S. Kaplan & David P. Norton