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Show Results For
- All HBS Web
(3,855)
- People (9)
- News (619)
- Research (2,452)
- Events (62)
- Multimedia (3)
- Faculty Publications (1,174)
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- January 2022
- Article
The Private Impact of Public Data: Landsat Satellite Maps Increased Gold Discoveries and Encouraged Entry
By: Abhishek Nagaraj
How does public data shape the relative performance of incumbents and entrants in the private sector? Using a simple theoretical framework, I argue that public data reduces investment uncertainty, facilitates the discovery of new market opportunities and increases the... View Details
Keywords: Public Data; Maps; Gold; Microeconomic Behavior; Economics; Data and Data Sets; Private Sector; Market Entry and Exit; Mining
Nagaraj, Abhishek. "The Private Impact of Public Data: Landsat Satellite Maps Increased Gold Discoveries and Encouraged Entry." Management Science 68, no. 1 (January 2022): 564–582.
- 2014
- Working Paper
Eclipsed and Confounded Identities: When High-Status Affiliations Impede Organizational Growth
By: Daniel Malter
I propose that an organization's growth potential may suffer if its identity is eclipsed by or confounded with the organizations with which it collaborates and competes. Using status as a salient feature of identity, I devise two network measures to capture the degree... View Details
Keywords: Distinctiveness; Status; Networks; Resource Acquisition; Growth; Venture Capital; Status and Position; Organizational Change and Adaptation; Identity; Growth and Development Strategy
Malter, Daniel. "Eclipsed and Confounded Identities: When High-Status Affiliations Impede Organizational Growth." Harvard Business School Working Paper, No. 15-019, October 2014.
- July 2023 (Revised July 2023)
- Background Note
Generative AI Value Chain
By: Andy Wu and Matt Higgins
Generative AI refers to a type of artificial intelligence (AI) that can create new content (e.g., text, image, or audio) in response to a prompt from a user. ChatGPT, Bard, and Claude are examples of text generating AIs, and DALL-E, Midjourney, and Stable Diffusion are... View Details
Keywords: AI; Artificial Intelligence; Model; Hardware; Data Centers; AI and Machine Learning; Applications and Software; Analytics and Data Science; Value
Wu, Andy, and Matt Higgins. "Generative AI Value Chain." Harvard Business School Background Note 724-355, July 2023. (Revised July 2023.)
- 2012
- Working Paper
What Do Managers Do? Exploring Persistent Performance Differences among Seemingly Similar Enterprises
By: Robert Gibbons and Rebecca Henderson
Social networks and social groups have both been seen as important to discouraging malfeasance and supporting the global pro-social norms that underlie social order, but have typically been treated either as pure substitutes or as having completely independent effects.... View Details
Keywords: Social Norms; Social Networks; Triadic Closure; Social Groups; Group Identity; Groups and Teams; Identity; Performance Consistency; Social and Collaborative Networks; Societal Protocols; Social Media
Gibbons, Robert, and Rebecca Henderson. "What Do Managers Do? Exploring Persistent Performance Differences among Seemingly Similar Enterprises." Harvard Business School Working Paper, No. 13-020, August 2012.
- 2023
- Article
Experimental Evaluation of Individualized Treatment Rules
By: Kosuke Imai and Michael Lingzhi Li
The increasing availability of individual-level data has led to numerous applications of individualized (or personalized) treatment rules (ITRs). Policy makers often wish to empirically evaluate ITRs and compare their relative performance before implementing them in a... View Details
Keywords: Causal Inference; Heterogeneous Treatment Effects; Precision Medicine; Uplift Modeling; Analytics and Data Science; AI and Machine Learning
Imai, Kosuke, and Michael Lingzhi Li. "Experimental Evaluation of Individualized Treatment Rules." Journal of the American Statistical Association 118, no. 541 (2023): 242–256.
- Article
Fast Generalized Subset Scan for Anomalous Pattern Detection
By: Edward McFowland III, Skyler Speakman and Daniel B. Neill
We propose Fast Generalized Subset Scan (FGSS), a new method for detecting anomalous patterns in general categorical data sets. We frame the pattern detection problem as a search over subsets of data records and attributes, maximizing a nonparametric scan statistic... View Details
Keywords: Pattern Detection; Anomaly Detection; Knowledge Discovery; Bayesian Networks; Scan Statistics; Analytics and Data Science
McFowland III, Edward, Skyler Speakman, and Daniel B. Neill. "Fast Generalized Subset Scan for Anomalous Pattern Detection." Art. 12. Journal of Machine Learning Research 14 (2013): 1533–1561.
- May 2018
- Case
The Multiple Myeloma Research Foundation's Answer Fund
By: Richard G. Hamermesh and Matthew G. Preble
Keywords: Data Analytics; Customer Focus and Relationships; Customer Relationship Management; Cost vs Benefits; Investment Return; Health Care and Treatment; Innovation Leadership; Intellectual Property; Knowledge Sharing; Knowledge Dissemination; Leadership; Leading Change; Resource Allocation; Goals and Objectives; Marketing Communications; Performance; Programs; Projects; Business and Community Relations; Business and Stakeholder Relations; Networks; Partners and Partnerships; Research and Development; Genetics; Behavior; Motivation and Incentives; Social and Collaborative Networks; Nonprofit Organizations; Strategy; Health Industry; Pharmaceutical Industry; Biotechnology Industry; United States
- June 2022 (Revised January 2025)
- Technical Note
Causal Inference
By: Iavor I Bojinov, Michael Parzen and Paul Hamilton
This note provides an overview of causal inference for an introductory data science course. First, the note discusses observational studies and confounding variables. Next the note describes how randomized experiments can be used to account for the effect of... View Details
Keywords: Causal Inference; Causality; Experiment; Experimental Design; Data Science; Analytics and Data Science
Bojinov, Iavor I., Michael Parzen, and Paul Hamilton. "Causal Inference." Harvard Business School Technical Note 622-111, June 2022. (Revised January 2025.)
- 24 Oct 2013
- Working Paper Summaries
When $3+$1 > $4: The Effect of Gift Salience on Employee Effort in an Online Labor Market
- 2022
- Working Paper
Causal Inference During A Pandemic: Evidence on the Effectiveness of Nebulized Ibuprofen as an Unproven Treatment for COVID-19 in Argentina
By: Sebastian Calonico, Rafael Di Tella and Juan Cruz Lopez Del Valle
Many medical decisions during the pandemic were made without the support of causal evidence obtained in clinical trials. We study the case of nebulized ibuprofen (NaIHS), a drug that was extensively used on COVID-19 patients in Argentina amidst wild claims about its... View Details
Keywords: COVID-19; Drug Treatment; Health Pandemics; Health Care and Treatment; Decision Making; Outcome or Result; Argentina
Calonico, Sebastian, Rafael Di Tella, and Juan Cruz Lopez Del Valle. "Causal Inference During A Pandemic: Evidence on the Effectiveness of Nebulized Ibuprofen as an Unproven Treatment for COVID-19 in Argentina." NBER Working Paper Series, No. 30084, May 2022.
- February 2003
- Article
Which Ties Matter When? The Contingent Effects of Interorganizational Partnerships on IPO Success
By: Ranjay Gulati and M. Higgins
This paper investigates the contingent value of interorganizational relationships at the time of a young firm's initial public offering (IPO). We compare the signaling value to young firms of having ties with two types of interorganizational partnerships: endorsement... View Details
Keywords: Interorganizatonal Relationships; Networks; Venture Capital; Initial Public Offering; Entrepreneurship; Biotechnology Industry
Gulati, Ranjay, and M. Higgins. "Which Ties Matter When? The Contingent Effects of Interorganizational Partnerships on IPO Success." Strategic Management Journal 24, no. 2 (February 2003): 127–144.
- November 2021
- Article
A Salient Sugar Tax Decreases Sugary Drink Buying
By: Grant E. Donnelly, Paige Guge, Ryan Howell and Leslie John
Many governments have introduced sugary drink excise taxes to reduce purchasing and consumption of such drinks; however, they do not typically stipulate how such taxes should be communicated at point-of-purchase. Historical, field, and experimental data entailing over... View Details
Keywords: Decision-making; Open Data; Open Materials; Preregistered; Health; Policy; Taxation; Consumer Behavior; Decision Making
Donnelly, Grant E., Paige Guge, Ryan Howell, and Leslie John. "A Salient Sugar Tax Decreases Sugary Drink Buying." Psychological Science 32, no. 11 (November 2021): 1830–1841.
- Article
Are They Useful? The Effects of Performance Incentives on the Prioritization of Work Versus Personal Ties
By: Julia Hur, Alice Lee-Yoon and Ashley V. Whillans
Most working adults report spending very little time with friends and family. The current research explores the aspects of work that encourage employees to spend less time with personal ties. We show that incentive systems play a critical role in shaping how people... View Details
Keywords: Rewards; Performance Incentives; Social Relationships; Instrumentality; Time Allocation; Performance; Motivation and Incentives; Relationships; Time Management
Hur, Julia, Alice Lee-Yoon, and Ashley V. Whillans. "Are They Useful? The Effects of Performance Incentives on the Prioritization of Work Versus Personal Ties." Organizational Behavior and Human Decision Processes 165 (July 2021): 103–114. (Shared Authorship.)
- 2014
- Working Paper
Team Scaffolds: How Meso-Level Structures Support Role-based Coordination in Temporary Groups
By: Melissa A. Valentine and Amy C. Edmondson
This paper shows how meso-level structures support effective coordination in temporary groups. Prior research on coordination in temporary groups describes how roles encode individual responsibilities so that coordination between relative strangers is possible. We... View Details
Keywords: Fluid Personnel; Team Scaffolds; Team Effectiveness; Role-based Coordination; Multi-method; Health Care and Treatment; Analytics and Data Science; Knowledge Use and Leverage; Organizational Structure; Outcome or Result; Performance Effectiveness; Groups and Teams; Networks; Behavior; Balance and Stability; Health Industry
Valentine, Melissa A., and Amy C. Edmondson. "Team Scaffolds: How Meso-Level Structures Support Role-based Coordination in Temporary Groups." Harvard Business School Working Paper, No. 12-062, January 2012. (Revised June 2014.)
- July 2020
- Article
Exploring the Effect of Environmental Orientation on Financial Decisions of Businesses at the Bottom of the Pyramid: Evidence from the Microlending Context
By: Anton Shevchenko, Xiaodan Pan and Goran Calic
Existing research has accumulated substantial evidence on the effect that an environmental orientation has on businesses' economic performance. Yet this research does not cover small businesses from bottom‐of‐the‐pyramid (BOP) markets. In fact, despite increasing... View Details
Keywords: Micro-lending; Environmental Sustainability; Financing and Loans; Corporate Social Responsibility and Impact; Small Business
Shevchenko, Anton, Xiaodan Pan, and Goran Calic. "Exploring the Effect of Environmental Orientation on Financial Decisions of Businesses at the Bottom of the Pyramid: Evidence from the Microlending Context." Business Strategy and the Environment 29, no. 5 (July 2020): 1876–1886.
- September 16, 2022
- Article
A Causal Test of the Strength of Weak Ties
By: Karthik Rajkumar, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson and Sinan Aral
The authors analyzed data from multiple large-scale randomized experiments on LinkedIn’s People You May Know algorithm, which recommends new connections to LinkedIn members, to test the extent to which weak ties increased job mobility in the world’s largest... View Details
Rajkumar, Karthik, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson, and Sinan Aral. "A Causal Test of the Strength of Weak Ties." Science 377, no. 6612 (September 16, 2022).
- 2010
- Working Paper
CREATING LEADERS WORKSHOP: Mastering the Principles and Effective Delivery of 'The Ontological Leadership Course' (PDF File of PowerPoint Slides)
By: Werner Erhard, Michael C. Jensen, Kari L. Granger and Joseph J. DiMaggio M.D.
This workshop is designed to support participants in gaining mastery in the delivery of our new course: "Being A Leader and the Effective Exercise of Leadership: An Ontological Model." The Workshop was delivered at the United States Air Force Academy (July 13 - 16,... View Details
Keywords: Curriculum and Courses; Values and Beliefs; Globalization; Policy; Leadership Development; Goals and Objectives; Performance Capacity; Social and Collaborative Networks
Erhard, Werner, Michael C. Jensen, Kari L. Granger, and Joseph J. DiMaggio M.D. "CREATING LEADERS WORKSHOP: Mastering the Principles and Effective Delivery of 'The Ontological Leadership Course' (PDF File of PowerPoint Slides)." Harvard Business School Working Paper, No. 11-002, October 2010.
- Article
DEA Model with Shared Resources and Efficiency Decomposition
By: Yao Chen, Juan Du, H. David Sherman and Joe Zhu
Data envelopment analysis (DEA) has proved to be an excellent approach for measuring performance of decision making units (DMUs) that use multiple inputs to generate multiple outputs. In many real world scenarios, DMUs have a two-stage network process with shared input... View Details
Chen, Yao, Juan Du, H. David Sherman, and Joe Zhu. "DEA Model with Shared Resources and Efficiency Decomposition." European Journal of Operational Research 207, no. 1 (November 2010): 339–349.
- 2012
- Working Paper
With Us or Against Us? Networks, Identity and Order in a Virtual World
By: Magnus Thor Torfason
Social networks and social groups have both been seen as important to discouraging malfeasance and supporting the global pro-social norms that underlie social order, but have typically been treated either as pure substitutes or as having completely independent effects.... View Details
Keywords: Social Norms; Social Networks; Triadic Closure; Social Groups; Group Identity; Groups and Teams; Boundaries; Organizations; Identity; Social and Collaborative Networks; Societal Protocols
Torfason, Magnus Thor. "With Us or Against Us? Networks, Identity and Order in a Virtual World." Harvard Business School Working Paper, No. 13-019, August 2012. (Revise and Resubmit, American Journal of Sociology.)
- Forthcoming
- Book
Blockchain Forensics and Crypto-Related Cybercrimes
By: Lin William Cong, Kim Grauer, Daniel Rabetti and Henry Updegrave
This handbook provides an overview of various criminal activities related to cryptocurrencies, including investment scams, Ponzi schemes, rug pulls, ransomware attacks, money laundering, and darknet markets. We discuss the need for user protection and education,... View Details
Keywords: Cyberattacks; Blockchain; Network; Cryptocurrency; Crime and Corruption; Cybersecurity; Governing Rules, Regulations, and Reforms; Law Enforcement; Technology Adoption
Cong, Lin William, Kim Grauer, Daniel Rabetti, and Henry Updegrave. Blockchain Forensics and Crypto-Related Cybercrimes. World Scientific Publishing, forthcoming.