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- All HBS Web
(1,919)
- People (2)
- News (215)
- Research (1,369)
- Events (15)
- Multimedia (13)
- Faculty Publications (907)
- 18 Sep 2017
- News
Chronicling a Legacy of Alumni Social Impact
commitment to social impact. He also wanted to know what motivated it, as well of its ultimate impact. In March 2016, Stevenson and a team of researchers launched a project to better understand and communicate that impact. To date, the... View Details
Keywords: Julia Hanna; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services; Scientific Research and Development Services
- September 2018
- Article
Aggregation of Consumer Ratings: An Application to Yelp.com
By: Weijia Dai, Ginger Jin, Jungmin Lee and Michael Luca
Because consumer reviews leverage the wisdom of the crowd, the way in which they are aggregated is a central decision faced by platforms. We explore this "rating aggregation problem" and offer a structural approach to solving it, allowing for (1) reviewers to vary in... View Details
Keywords: User Generated Content; Crowdsourcing; Yelp; Social and Collaborative Networks; Information; Internet and the Web; Learning; Mathematical Methods; E-commerce
Dai, Weijia, Ginger Jin, Jungmin Lee, and Michael Luca. "Aggregation of Consumer Ratings: An Application to Yelp.com." Quantitative Marketing and Economics 16, no. 3 (September 2018): 289–339.
- January 2008
- Background Note
Index Options
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand the patterns in index option prices that are not predicted by the Black-Scholes model. In particular, the simulation focuses on two properties of options prices. First, at-the-money implied volatilities from index options... View Details
Keywords: Volatility; Stock Options; Investment; Price; Profit; Risk Management; Mathematical Methods
Coval, Joshua, and Erik Stafford. "Index Options." Harvard Business School Background Note 208-119, January 2008.
- January 2002 (Revised October 2007)
- Case
Grantham, Mayo, Van Otterloo & Co., 2001
By: Joshua Musher and Andre F. Perold
Asset manager GMO underperforms the market during the 1996-2000 stock market bubble because of the focus on absolute risk. After suffering significant client withdrawals, performance again shines when the bubble collapses. Did they win the battle only to lose the war?... View Details
Keywords: Customers; Asset Management; Stocks; Investment; Price Bubble; Mathematical Methods; Risk and Uncertainty
Musher, Joshua, and Andre F. Perold. "Grantham, Mayo, Van Otterloo & Co., 2001." Harvard Business School Case 202-049, January 2002. (Revised October 2007.)
- October 1993 (Revised August 1996)
- Background Note
Forecasting with Regression Analysis
Provides an example of regression in one of its most important roles. Relating probabilistic forecasts based on past data to decision analysis. View Details
Keywords: Management Analysis, Tools, and Techniques; Analytics and Data Science; Forecasting and Prediction; Mathematical Methods
Schleifer, Arthur, Jr. "Forecasting with Regression Analysis." Harvard Business School Background Note 894-007, October 1993. (Revised August 1996.)
- Article
Loss Aversion, Diminishing Sensitivity, and the Role of Experience in Repeated Decisions
Three experiments are presented that explore the assertion that loss aversion and diminishing sensitivity drive the effect of experience on choice behavior. The experiments are focused on repeated choice tasks where decision makers choose repeatedly between... View Details
Erev, Ido, Eyal Ert, and Eldad Yechiam. "Loss Aversion, Diminishing Sensitivity, and the Role of Experience in Repeated Decisions." Journal of Behavioral Decision Making 21, no. 5 (December 2008).
- February 2005 (Revised November 2016)
- Background Note
Forecasting the Adoption of a New Product
By: Elie Ofek
Provides tools and methodologies that allow forecasting demand for innovative new products. Highlights the Bass model—the theory behind it and ways to determine its parameters. Provides a detailed example of how to use the Bass model to forecast demand for satellite... View Details
Keywords: Forecasting and Prediction; Innovation and Invention; Marketing; Demand and Consumers; Mathematical Methods; Competition
Ofek, Elie. "Forecasting the Adoption of a New Product." Harvard Business School Background Note 505-062, February 2005. (Revised November 2016.)
- January 2003 (Revised January 2008)
- Case
The British Motorcycle Industry at a Crossroads
By: Jan W. Rivkin
By 1975, the collapse of the British motorcycle industry is nearly complete. Only one British manufacturer, NVT, remains in operation. In this setting, the British government commissions the Boston Consulting Group to identify and evaluate strategic alternatives for... View Details
Keywords: Cost; Industry Structures; Business and Government Relations; Mathematical Methods; Competition; Consulting Industry; Manufacturing Industry; Motorcycle Industry; Great Britain
Rivkin, Jan W. "The British Motorcycle Industry at a Crossroads." Harvard Business School Case 703-031, January 2003. (Revised January 2008.)
- 2024
- Working Paper
The New Digital Divide
By: Mayana Pereira, Shane Greenstein, Raffaella Sadun, Prasanna Tambe, Lucia Ronchi Darre, Tammy Glazer, Allen Kim, Rahul Dodhia and Juan Lavista Ferres
We build and analyze new metrics of digital usage that leverage telemetry data collected by Microsoft during operating system updates across forty million Windows devices in U.S. households. These measures of US household digital usage are much more comprehensive than... View Details
Keywords: Mathematical Methods; Measurement and Metrics; Geographic Location; Behavior; Technology Adoption; Demographics
Pereira, Mayana, Shane Greenstein, Raffaella Sadun, Prasanna Tambe, Lucia Ronchi Darre, Tammy Glazer, Allen Kim, Rahul Dodhia, and Juan Lavista Ferres. "The New Digital Divide." NBER Working Paper Series, No. 32932, September 2024.
- August 1993 (Revised April 1994)
- Case
Flanders of Springfield
Flanders is a catalog merchandiser. Various decisions on catalog distribution policy, ordering and inventory policy, and catalog format design are considered. This was a final examination, and serves as a review for a number of topics in the course. View Details
Keywords: Decisions; Policy; Distribution; Product Design; Supply Chain; Mathematical Methods; Consumer Products Industry
Schleifer, Arthur, Jr. "Flanders of Springfield." Harvard Business School Case 894-005, August 1993. (Revised April 1994.)
- 31 Jan 2012
- First Look
First Look: Jan. 31
hospital emergency room and focuses on the effects of a new organizational structure, which we call a team scaffold, on teaming effectiveness and performance outcomes. Using a hybrid research design that adapts and blends quantitative... View Details
Keywords: Sean Silverthorne & Carmen Nobel
- May 2009 (Revised December 2009)
- Teaching Note
Reliance Baking Soda: Optimizing Promotional Spending (Brief Case)
By: John A. Quelch and Heather Beckham
Teaching Note to Briefcase 4128 View Details
- 2007
- Working Paper
Optimal Reserve Management and Sovereign Debt
By: Laura Alfaro and Fabio Kanczuk
Most models currently used to determine optimal foreign reserve holdings take the level of international debt as given. However, given the sovereign's willingness-to-pay incentive problems, reserve accumulation may reduce sustainable debt levels. In addition, assuming... View Details
- Fourth Quarter 2007
- Article
Contingent Claims Approach to Measuring and Managing Sovereign Credit Risk
By: Dale . F. Gray, Robert C. Merton and Zvi Bodie
This paper proposes a new approach to measure, analyze, and manage sovereign risk based on the theory and practice of modern contingent claims analysis (CCA). The paper provides a new framework for adapting the CCA model to the sovereign balance sheet in a way that can... View Details
Keywords: Credit; Investment; Sovereign Finance; Risk Management; Emerging Markets; Market Transactions; Mathematical Methods; Valuation
Gray, Dale . F., Robert C. Merton, and Zvi Bodie. "Contingent Claims Approach to Measuring and Managing Sovereign Credit Risk." Special Issue on Credit Analysis. Journal of Investment Management 5, no. 4 (Fourth Quarter 2007): 5–28.
- June 2024
- Article
Redistributive Allocation Mechanisms
By: Mohammad Akbarpour, Piotr Dworczak and Scott Duke Kominers
Many scarce public resources are allocated at below-market-clearing prices, and sometimes for free. Such "non-market" mechanisms sacrifice some surplus, yet they can potentially improve equity. We develop a model of mechanism design with redistributive concerns. Agents... View Details
Akbarpour, Mohammad, Piotr Dworczak, and Scott Duke Kominers. "Redistributive Allocation Mechanisms." Journal of Political Economy 132, no. 6 (June 2024): 1831–1875. (Authors' names are in certified random order.)
- May 2010
- Teaching Note
Flare Fragrances Company, Inc.: Analyzing Growth Opportunities (Brief Case)
By: John A. Quelch and Lisa D. Donovan
Teaching note to case #4550 View Details
- February 2010
- Supplement
Marketing Analysis Toolkit: Breakeven Analysis (CW)
By: Thomas J. Steenburgh and Jill Avery
This Excel worksheet contains sample problems, prebuilt Excel models to run breakeven analyses, and charts and graphs which help visualize the results. It is designed to accompany "Marketing Analysis Toolkit: Breakeven Analysis." View Details
- June 2008
- Article
The Market for Mergers and the Boundaries of the Firm
By: Matthew Rhodes-Kropf and David Robinson
We relate the property rights theory of the firm to empirical regularities in the market for mergers and acquisitions. We first show that high market-to-book acquirers typically do not purchase low market-to-book targets. Instead, mergers pair together firms with... View Details
Rhodes-Kropf, Matthew, and David Robinson. "The Market for Mergers and the Boundaries of the Firm." Journal of Finance 63, no. 3 (June 2008): 1169–1211.
- 2008
- Working Paper
Taste Heterogeneity, IIA, and the Similarity Critique
By: Thomas J. Steenburgh and Andrew Ainslie
The purpose of this paper is to show that allowing for taste heterogeneity does not address the similarity critique of discrete-choice models. Although IIA may technically be broken in aggregate, the mixed logit model allows neither a given individual nor the... View Details
Steenburgh, Thomas J., and Andrew Ainslie. "Taste Heterogeneity, IIA, and the Similarity Critique." Harvard Business School Working Paper, No. 09-049, September 2008.
- November 2006
- Background Note
Technical Game Theory Note #1: Solving Bi-matrix Games
By: Dennis A. Yao
Explains how to solve bi-matrix games and introduces the Nash Equilibrium concept. View Details