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Show Results For
- All HBS Web
(510)
- People (1)
- News (95)
- Research (313)
- Events (2)
- Multimedia (7)
- Faculty Publications (155)
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- July 16, 2016
- Article
A Game Theoretic Model for Resource Allocation Among Countermeasures with Multiple Attributes
By: Elisabeth C. Paulson, Igor Linkov and Jeffrey Keisler
We study a strategic, two-player, sequential game between an attacker and defender. The defender must allocate resources amongst possible countermeasures and across possible targets. The attacker then chooses a type of threat and a target to attack. This paper proposes... View Details
Paulson, Elisabeth C., Igor Linkov, and Jeffrey Keisler. "A Game Theoretic Model for Resource Allocation Among Countermeasures with Multiple Attributes." European Journal of Operational Research 252, no. 2 (July 16, 2016): 610–622.
- 2010
- Article
On the Classification of Type II Codes of Length 24
By: Noam D. Elkies and Scott Duke Kominers
We give a new, purely coding-theoretic proof of Koch's criterion on the tetrad systems of Type II codes of length 24 using the theory of harmonic weight enumerators. This approach is inspired by Venkov's approach to the classification of the root systems of Type II... View Details
Keywords: Mathematical Methods
Elkies, Noam D., and Scott Duke Kominers. "On the Classification of Type II Codes of Length 24." SIAM Journal on Discrete Mathematics 23, no. 4 (2010).
- September 2009 (Revised June 2011)
- Case
Mercury Athletic: Valuing the Opportunity
By: Timothy A. Luehrman and Joel L. Heilprin
In January 2007, West Coast Fashions, Inc., a large designer and marketer of branded apparel, announced a strategic reorganization that would result in the divestiture of their wholly owned footwear subsidiary, Mercury Athletic. John Liedtke, the head of business... View Details
Keywords: Mergers ＆ Acquisitions; Sensitivity Analysis; Cost of Capital; Restructuring; Valuation; Cash Flow; Mergers and Acquisitions; Corporate Finance; Apparel and Accessories Industry
Luehrman, Timothy A., and Joel L. Heilprin. "Mercury Athletic: Valuing the Opportunity." Harvard Business School Brief Case 094-050, September 2009. (Revised June 2011.)
- 2021
- Chapter
Towards a Unified Framework for Fair and Stable Graph Representation Learning
By: Chirag Agarwal, Himabindu Lakkaraju and Marinka Zitnik
As the representations output by Graph Neural Networks (GNNs) are increasingly employed in real-world applications, it becomes important to ensure that these representations are fair and stable. In this work, we establish a key connection between counterfactual... View Details
Agarwal, Chirag, Himabindu Lakkaraju, and Marinka Zitnik. "Towards a Unified Framework for Fair and Stable Graph Representation Learning." In Proceedings of the 37th Conference on Uncertainty in Artificial Intelligence, edited by Cassio de Campos and Marloes H. Maathuis, 2114–2124. AUAI Press, 2021.
- February 2022 (Revised April 2022)
- Case
Pushing Past the Boundaries of ESG Investing: AQR Capital Management
By: Lauren H. Cohen, Richard B. Evans, Umit G. Gurun and Quoc H. Nguyen
Cliff Asness was facing a dilemma into how he would plunge his hedge fund into the hottest investment area worldwide—ESG Investing. Founder and managing principal of AQR—one the most storied quantitative hedge funds in the world—Asness knew anything less than a big... View Details
Cohen, Lauren H., Richard B. Evans, Umit G. Gurun, and Quoc H. Nguyen. "Pushing Past the Boundaries of ESG Investing: AQR Capital Management." Harvard Business School Case 222-058, February 2022. (Revised April 2022.)
- November 2007
- Background Note
Asset Allocation I
By: Joshua D. Coval, Erik Stafford, Rodrigo Osmo, John Jernigan, Zack Page and Paulo Passoni
The goal of these simulations is to understand the mathematics of mean-variance optimization and the equilibrium pricing of risk if all investors use this rule with common information sets. Simulation A focuses on five to 10 years of monthly sector returns that are... View Details
- October 2009
- Article
Influence and Inefficiency in the Internal Capital Market
By: Julie Wulf
I model inefficient resource allocations in M-form organizations due to influence activities by division managers that skew capital budgets in their favor. Corporate headquarters receives two types of signals about investment opportunities: private signals that can be... View Details
Keywords: Capital Markets; Resource Allocation; Business Processes; Capital Budgeting; Business Headquarters; Investment; Opportunities; Cost; Value; Motivation and Incentives; Equity
Wulf, Julie. "Influence and Inefficiency in the Internal Capital Market." Journal of Economic Behavior & Organization 72, no. 1 (October 2009): 305–321.
- January 1995 (Revised August 1997)
- Background Note
Cross-Border Valuation
By: Kenneth A. Froot and W. Carl Kester
Provides a review of valuation techniques used to assess cross-border investments. Discusses the discounting of free cash flows with a weighted average cost of capital and the use of adjusted present value. Special concerns such as foreign-exchange risk, country risks,... View Details
Froot, Kenneth A., and W. Carl Kester. "Cross-Border Valuation." Harvard Business School Background Note 295-100, January 1995. (Revised August 1997.)
- Research Summary
Interaction of biological and psychological drivers of obesity
With a multi-disciplinary team of researchers in nutrition, microbiology, and epidemiology, we received a large grant to fund the Institute for Cardio-Metabolism and Nutrition (ICAN), a major initiative to promote research on obesity and... View Details
- Article
Quantile Evaluation, Sensitivity to Bracketing, and Sharing Business Payoffs
By: Y. Grushka-Cockayne, K. C. Lichtendahl, V.R.R. Jose and R.L. Winkler
From forecasting competitions to conditional value-at-risk requirements, the use of multiple quantile assessments is growing in practice. To evaluate them, we use a rule from the general class of proper scoring rules for a forecaster’s multiple quantiles of a single... View Details
Grushka-Cockayne, Y., K. C. Lichtendahl, V.R.R. Jose, and R.L. Winkler. "Quantile Evaluation, Sensitivity to Bracketing, and Sharing Business Payoffs." Operations Research 65, no. 3 (May–June 2017): 712–728.
- Research Summary
National Innovative Capacity and the Ideas Production Function
Joint research with Scott Stern (MIT) is exploring the determinants of innovative capacity across countries using time series/cross-section data ("Measuring the "Ideas" Production Function: Evidence from International Patent... View Details
- 03 May 2016
- Working Paper Summaries
Pay Now or Pay Later? The Economics within the Private Equity Partnership
- 2021
- Working Paper
Most Individuals Prefer to Compromise among Competing Normative Principles of Taxation
By: Itai Sher and Matthew C. Weinzierl
We use a novel survey to gather direct and indirect evidence on how individuals reconcile their simultaneous support for opposing normative principles when forming their policy preferences. Our evidence suggests that, when choosing policy, a minority (approximately... View Details
Sher, Itai, and Matthew C. Weinzierl. "Most Individuals Prefer to Compromise among Competing Normative Principles of Taxation." Harvard Business School Working Paper, No. 22-013, September 2021.
- Research Summary
Consumer Behavior and Health
Professor Riis studies consumer behavior and health using the methods and theories of experimental psychology and behavioral economics. Particular problems that he is currently investigating include:
• Information use and decision making in food service... View Details
- August 2010
- Case
Flash Memory, Inc.
By: William E. Fruhan and Craig Stephenson
The CFO of Flash Memory, Inc. prepares the company's investing and financing plans for the next three years. Flash Memory is a small firm that specializes in the design and manufacture of solid state drives (SSDs) and memory modules for the computer and electronics... View Details
Keywords: Forecasting; Financial Management; Cash Flow; Forecasting and Prediction; Capital Budgeting; Computer Industry; Electronics Industry; United States
Fruhan, William E., and Craig Stephenson. "Flash Memory, Inc." Harvard Business School Brief Case 104-230, August 2010.
- February 2016 (Revised July 2017)
- Case
A Nation Divided: The United States and the Challenge of Secession
By: David Moss and Marc Campasano
Americans elected Abraham Lincoln as the nation's first Republican president in November of 1860. Northern political leaders had formed the Republican Party only a few years before, in large measure to combat the spread of slavery. Southerners had long been wary of... View Details
Moss, David, and Marc Campasano. "A Nation Divided: The United States and the Challenge of Secession." Harvard Business School Case 716-048, February 2016. (Revised July 2017.)
- 2025
- Article
Humor as a Window into Generative AI Bias
By: Roger Samure, Julian De Freitas and Stefano Puntoni
A preregistered audit of 600 images by generative AI across 150 different prompts explores the link between humor and discrimination in consumer-facing AI solutions. When ChatGPT updates images to make them “funnier”, the prevalence of stereotyped groups changes. While... View Details
Samure, Roger, Julian De Freitas, and Stefano Puntoni. "Humor as a Window into Generative AI Bias." Art. 1326. Scientific Reports 15 (2025).
- July 2014
- Supplement
Barclays Bank and Contingent Capital Notes, 2012 (CW)
By: Lucy White and Trent Kim
In 2012, regulatory changes following the financial crisis mean that Barclays Bank is faced with the need to raise large amounts of capital in order to comply with increased capital requirements, tightening rules as to the "quality of capital," and increased risk... View Details
- January 2014
- Case
Barclays Bank and Contingent Capital Notes, 2012
By: Lucy White and Trent Kim
In 2012, regulatory changes following the financial crisis mean that Barclays Bank is faced with the need to raise large amounts of capital in order to comply with increased capital requirements, tightening rules as to the "quality of capital," and increased risk... View Details
White, Lucy, and Trent Kim. "Barclays Bank and Contingent Capital Notes, 2012." Harvard Business School Case 214-063, January 2014.
- October 1986 (Revised August 2015)
- Case
Advanced Medical Technology Corporation
By: Thomas R. Piper and Steven Rogers
A loan officer must decide whether to lend $8 million to a rapidly growing high technology company. The company has had a series of relationships with three other banks. Reports from loan officers at these banks are mixed and raise questions as to the ease with which a... View Details
Keywords: Decision Making; Commercial Banking; Financing and Loans; Financial Condition; Technology Industry
Piper, Thomas R., and Steven Rogers. "Advanced Medical Technology Corporation." Harvard Business School Case 287-028, October 1986. (Revised August 2015.)