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Show Results For
- All HBS Web
(3,496)
- People (38)
- News (627)
- Research (1,881)
- Events (27)
- Multimedia (207)
- Faculty Publications (1,413)
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- 2013
- Chapter
Privacy Breach Analysis in Social Networks
By: Frank Nagle
Over the past 5–10 years, online social networks have rapidly expanded, and as of March 2012 the largest online social network, Facebook, had over 901 million active members. The wealth of information users post in their social network profiles, as well as the... View Details
Keywords: Crime and Corruption; Social and Collaborative Networks; Social Media; Cybersecurity; Analytics and Data Science
Nagle, Frank. "Privacy Breach Analysis in Social Networks." In Mining Social Networks and Security Informatics, edited by Tansel Ozyer, Zeki Erdem, Jon Rokne, and Suheil Khoury, 63–77. Springer Science + Business Media, 2013.
- May 1999 (Revised August 1999)
- Case
Victory Supermarkets: Expansion Strategy?
By: David E. Bell and Ann Leamon
Jay DiGeronimo, president of a 16-store supermarket chain, is trying to decide the timing and method for expanding his chain. The family-owned company could continue in a maintenance mode, with each family member running one store. It could expand slowly using a new... View Details
Keywords: Budgets and Budgeting; Cost vs Benefits; Trade; Investment; Market Entry and Exit; Supply Chain Management; Private Ownership; Competition; Expansion; Retail Industry
Bell, David E., and Ann Leamon. "Victory Supermarkets: Expansion Strategy?" Harvard Business School Case 599-054, May 1999. (Revised August 1999.)
- Research Summary
Long-Run Performance Following Equity Issue
By: Paul A. Gompers
In an effort to establish how the transition from private to public firm
affects performance, Paul A. Gompers is examining the long-run performance
of companies that issue equity in an initial public or seasoned offering.
He is also attempting to determine whether... View Details
- August 2020 (Revised December 2020)
- Background Note
A Note on Ethical Analysis
By: Nien-hê Hsieh
To engage in ethical analysis is to answer such questions as “What is the right thing to do?” “What does it mean to be a good person?” “How should I live my life?” Ethical analysis, on its own, is often not adequate for doing the right thing or being a good... View Details
Hsieh, Nien-hê. "A Note on Ethical Analysis." Harvard Business School Background Note 321-038, August 2020. (Revised December 2020.)
- 2023
- Working Paper
In-Context Unlearning: Language Models as Few Shot Unlearners
By: Martin Pawelczyk, Seth Neel and Himabindu Lakkaraju
Machine unlearning, the study of efficiently removing the impact of specific training points on the
trained model, has garnered increased attention of late, driven by the need to comply with privacy
regulations like the Right to be Forgotten. Although unlearning is... View Details
Pawelczyk, Martin, Seth Neel, and Himabindu Lakkaraju. "In-Context Unlearning: Language Models as Few Shot Unlearners." Working Paper, October 2023.
- 22 Jan 2014
- Working Paper Summaries
Separating Homophily and Peer Influence with Latent Space
- January–February 2020
- Article
Are You Undervaluing Your Customers?: It’s Time to Start Measuring and Managing Their Worth
By: Rob Markey
Leaders recognize that they should manage their businesses to maximize the value of the customer base. But too often, earnings pressures result in cost-cutting measures that hurt customers.
Loyalty-leading companies operate differently. They create systems for... View Details
Keywords: Customer Experience; Customer Value; Customer Centric Initiative; Customer Focused Organization; Customer Lifetime Value; Customer Focus and Relationships; Customer Value and Value Chain; Operations; Business Strategy
Markey, Rob. "Are You Undervaluing Your Customers? It’s Time to Start Measuring and Managing Their Worth." Harvard Business Review 98, no. 1 (January–February 2020): 42–50.
- 2009
- Simulation
Finance Simulation: Blackstone/Celanese: No. 3712.
By: Nabil N. El-Hage and Timothy A. Luehrman
The Finance Simulation: Blackstone/Celanese is based on the landmark acquisition of Celanese AG by the Blackstone Group in 2003. Students play the role of either Celanese or Blackstone and conduct due diligence, establish deal terms, respond to bids and counter-bids,... View Details
- March 2000
- Case
Heartport, Inc.
By: Gary P. Pisano and Shoshana Dobrow
Heartport, an entrepreneurial medical device maker, has introduced several innovative systems for conducting less-invasive cardiac surgery. Despite initially high expectations, the company has struggled to get its technology adopted by cardiac surgeons. The company's... View Details
Keywords: History; Product Positioning; Knowledge Acquisition; Corporate Entrepreneurship; Technology Adoption; Health Care and Treatment
Pisano, Gary P., and Shoshana Dobrow. "Heartport, Inc." Harvard Business School Case 600-020, March 2000.
- January 2000 (Revised October 2002)
- Case
Cambridge Hospital Community Health Network - The Primary Care Unit
By: V.G. Narayanan, Lisa Brem and Ryan Moore
The Cambridge Hospital Community Health Network needed to gain a better understanding of its unit-of-service costs, which had been rising at a rate of 10% per year. The network's step-down costing system gave only aggregate costing information, and there was some... View Details
Keywords: Activity Based Costing and Management; Health Care and Treatment; Cost Accounting; Cost; Network Effects; Health Industry; Service Industry; Massachusetts
Narayanan, V.G., Lisa Brem, and Ryan Moore. "Cambridge Hospital Community Health Network - The Primary Care Unit." Harvard Business School Case 100-054, January 2000. (Revised October 2002.)
- September 24, 2021
- Article
A Labor Movement for the Platform Economy
By: Li Jin, Scott Duke Kominers and Lila Shroff
Platforms are fundamentally changing the contract between workers and companies—and the workers and creatives that create value for platform companies, and rely on platforms for their livelihoods, often have little power when it comes to getting their concerns... View Details
Keywords: Gig Workers; Decentralized Collective Action; Internet and the Web; Labor; Labor and Management Relations; Digital Platforms
Jin, Li, Scott Duke Kominers, and Lila Shroff. "A Labor Movement for the Platform Economy." Harvard Business Review Digital Articles (September 24, 2021).
- August 2021 (Revised February 2023)
- Case
Fair Park Covid-19 Mass Vaccination Site (A)
By: Willy Shih
This case is an opportunity to apply the methods of the Toyota Production System (TPS) to the analysis of an everyday service application: administering Covid-19 vaccines. It describes the start-up of a drive-up Covid-19 mass vaccination site at the Texas State Fair... View Details
Keywords: Operations Improvement; Operations And Processes; Toyota Production System; COVID-19 Pandemic; Operations; Service Operations; Health Pandemics; Problems and Challenges; Goals and Objectives; Measurement and Metrics; Health Care and Treatment; Health Industry; United States; Texas
Shih, Willy. "Fair Park Covid-19 Mass Vaccination Site (A)." Harvard Business School Case 622-003, August 2021. (Revised February 2023.)
- June 2022
- Article
The Use and Misuse of Patent Data: Issues for Finance and Beyond
By: Josh Lerner and Amit Seru
Patents and citations are powerful tools for understanding innovation increasingly used in financial economics (and management research more broadly). Biases may result, however, from the interactions between the truncation of patents and citations and the changing... View Details
Lerner, Josh, and Amit Seru. "The Use and Misuse of Patent Data: Issues for Finance and Beyond." Review of Financial Studies 35, no. 6 (June 2022): 2667–2704.
- September–October 2023
- Article
Interpretable Matrix Completion: A Discrete Optimization Approach
By: Dimitris Bertsimas and Michael Lingzhi Li
We consider the problem of matrix completion on an n × m matrix. We introduce the problem of interpretable matrix completion that aims to provide meaningful insights for the low-rank matrix using side information. We show that the problem can be... View Details
Keywords: Mathematical Methods
Bertsimas, Dimitris, and Michael Lingzhi Li. "Interpretable Matrix Completion: A Discrete Optimization Approach." INFORMS Journal on Computing 35, no. 5 (September–October 2023): 952–965.
- November 2021
- Article
Panel Experiments and Dynamic Causal Effects: A Finite Population Perspective
By: Iavor Bojinov, Ashesh Rambachan and Neil Shephard
In panel experiments, we randomly assign units to different interventions, measuring their outcomes, and repeating the procedure in several periods. Using the potential outcomes framework, we define finite population dynamic causal effects that capture the relative... View Details
Keywords: Panel Data; Dynamic Causal Effects; Potential Outcomes; Finite Population; Nonparametric; Mathematical Methods
Bojinov, Iavor, Ashesh Rambachan, and Neil Shephard. "Panel Experiments and Dynamic Causal Effects: A Finite Population Perspective." Quantitative Economics 12, no. 4 (November 2021): 1171–1196.
- Article
Reliable Post hoc Explanations: Modeling Uncertainty in Explainability
By: Dylan Slack, Sophie Hilgard, Sameer Singh and Himabindu Lakkaraju
As black box explanations are increasingly being employed to establish model credibility in high stakes settings, it is important to ensure that these explanations are accurate and reliable. However, prior work demonstrates that explanations generated by... View Details
Keywords: Black Box Explanations; Bayesian Modeling; Decision Making; Risk and Uncertainty; Information Technology
Slack, Dylan, Sophie Hilgard, Sameer Singh, and Himabindu Lakkaraju. "Reliable Post hoc Explanations: Modeling Uncertainty in Explainability." Advances in Neural Information Processing Systems (NeurIPS) 34 (2021).
- 2021
- Working Paper
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the... View Details
Keywords: Difference In Differences; Staggered Difference-in-differences Designs; Generalized Difference-in-differences; Dynamic Treatment Effects; Mathematical Methods
Baker, Andrew C., David F. Larcker, and Charles C.Y. Wang. "How Much Should We Trust Staggered Difference-In-Differences Estimates?" European Corporate Governance Institute Finance Working Paper, No. 736/2021, February 2021. (Harvard Business School Working Paper, No. 21-112, April 2021.)
- Article
Wealth-Making in Nineteenth and Early Twentieth Century Britain: Industry v. Commerce and Finance
By: Tom Nicholas
This paper refutes the hypothesis put forward by W.D. Rubinstein that a disproportionately large share of Britain's wealth makers were active in commercial and financial trades in London. We use a data set of businessmen active in nineteenth- and early... View Details
Keywords: Trade; Finance; Commercialization; Mathematical Methods; Wealth and Poverty; Great Britain; London
Nicholas, Tom. "Wealth-Making in Nineteenth and Early Twentieth Century Britain: Industry v. Commerce and Finance." Business History 41, no. 1 (January 1999).
- 2012
- Chapter
Creating Leaders: An Ontological/Phenomenological Model
By: Michael C. Jensen, Werner Erhard and Kari L. Granger
The sole objective of our ontological/phenomenological approach to creating leaders is to leave students actually being leaders and exercising leadership effectively as their natural self-expression. By "natural self-expression" we mean a way of being and acting in any... View Details
Keywords: Leadership Development; Attitudes; Behavior; Experience and Expertise; Knowledge Acquisition
Jensen, Michael C., Werner Erhard, and Kari L. Granger. "Creating Leaders: An Ontological/Phenomenological Model." Chap. 16 in The Handbook for Teaching Leadership: Knowing, Doing, and Being, edited by Scott Snook, Nitin Nohria, and Rakesh Khurana. Thousand Oaks, CA: Sage Publications, 2012.
- 2019
- Article
Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading
By: Iavor I Bojinov and Neil Shephard
We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact randomization based p-values for testing causal... View Details
Bojinov, Iavor I., and Neil Shephard. "Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading." Journal of the American Statistical Association 114, no. 528 (2019): 1665–1682.