Publications
Publications
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- All HBS Web
(243)
- Faculty Publications (49)
- 2019
- Article
An Empirical Study of Rich Subgroup Fairness for Machine Learning
By: Michael J Kearns, Seth Neel, Aaron Leon Roth and Zhiwei Steven Wu
Kearns et al. [2018] recently proposed a notion of rich subgroup fairness intended to bridge the gap between statistical and individual notions of fairness. Rich subgroup fairness picks a statistical fairness constraint (say, equalizing false positive rates across... View Details
- August 2018 (Revised September 2018)
- Supplement
Predicting Purchasing Behavior at PriceMart (B)
By: Srikant M. Datar and Caitlin N. Bowler
Supplements the (A) case. In this case, Wehunt and Morse are concerned about the logistic regression model overfitting to the training data, so they explore two methods for reducing the sensitivity of the model to the data by regularizing the coefficients of the... View Details
- August 2018 (Revised September 2018)
- Supplement
LendingClub (C): Gradient Boosting & Payoff Matrix
By: Srikant M. Datar and Caitlin N. Bowler
This case builds directly on the LendingClub (A) and (B) cases. In this case students follow Emily Figel as she builds an even more sophisticated model using the gradient boosted tree method to predict, with some probability, whether a borrower would repay or default... View Details
- January 2018 (Revised October 2021)
- Case
Château Margaux: Launching the Third Wine (Abridged)
By: Elie Ofek
Château Margaux, one of only five prestigious estates in the Bordeaux Medoc wine region to have been classified as a "first-growth", is facing a host of strategic decisions in early 2013. Up until this point the estate had been selling two red wines, a first wine whose... View Details
- Article
Preventing Fairness Gerrymandering: Auditing and Learning for Subgroup Fairness
By: Michael J Kearns, Seth Neel, Aaron Leon Roth and Zhiwei Steven Wu
The most prevalent notions of fairness in machine learning are statistical definitions: they fix a small collection of pre-defined groups, and then ask for parity of some statistic of the classifier (like classification rate or false positive rate) across these groups.... View Details
- August 2017 (Revised December 2018)
- Case
Tamarin App: Natural Language Processing
By: Srikant M. Datar and Caitlin N. Bowler
In this case, students explore the challenges of using sentiment analysis to monitor and understand public perception around a software application, Tamarin SEO App. Technical topics include building a filtering classifier using naive Bayes and sentiment analysis This... View Details
- Article
Repositioning and Cost-Cutting: The Impact of Competition on Platform Strategies
By: Robert Seamans and Feng Zhu
Organizational structures are increasingly complex. In particular, more firms today operate as multi-sided platforms. In this paper, we study how platform firms use repositioning and cost-cutting in response to competition, elucidate external and internal factors that... View Details
- December 2016
- Article
Industry Window Dressing
By: Huaizhi Chen, Lauren Cohen and Dong Lou
We explore a new mechanism by which investors take correlated shortcuts and present evidence that managers undertake actions—in the form of sales management—to take advantage of these shortcuts. Specifically, we exploit a regulatory provision wherein a firm’s primary... View Details
- November 2016
- Article
Corporate Sustainability: First Evidence on Materiality
By: Mozaffar Khan, George Serafeim and Aaron Yoon
Using newly available materiality classifications of sustainability topics, we develop a novel dataset by hand-mapping sustainability investments classified as material for each industry into firm-specific sustainability ratings. This allows us to present new evidence... View Details
- 2016
- Working Paper
Shareholder Activism on Sustainability Issues
By: Jody Grewal, George Serafeim and Aaron Yoon
Shareholder activism on sustainability issues has become increasingly prevalent over the years, with the number of proposals filed doubling from 1999 to 2013. We use recent innovations in accounting standard setting to classify 2,665 shareholder proposals that address... View Details
Keywords: Sustainability; Activism; Activist Investors; Activist Shareholder; Corporate Social Responsibility; Environment; Corporate Performance; Corporate Accountability; Corporate Social Responsibility and Impact; Performance; Environmental Sustainability; Corporate Governance; Business and Shareholder Relations; Investment Activism
- Article
The What and Why of Self-deception
By: Zoë Chance and Michael I. Norton
Scholars from many disciplines have investigated self-deception, but defining self-deception and establishing its possible benefits have been a matter of heated debate—a debate impoverished by a relative lack of empirical research. Drawing on recent research, we first... View Details
Keywords: Cognition and Thinking
- Article
Why A Behavioral Theory of Labor Negotiations Remains a Triumph at Fifty but the Labels 'Distributive' and 'Integrative' Should Be Retired
Richard Walton and Robert McKersie's closeness to practice, disciplinary rigor, and successful search for powerful generalizations help explain the lasting impact of the Behavioral Theory of Labor Relations. Ironically, the names they chose for the fundamental... View Details
- September 2015 (Revised March 2017)
- Case
Château Margaux (Abridged)
By: Elie Ofek, Eric E. Vogt and Robert J. Dolan
Château Margaux, one of only five prestigious estates in the Bordeaux Medoc wine region to have been classified as a "first-growth", is facing a host of strategic decisions in early 2013. Up until this point the estate had been selling two red wines, a first wine whose... View Details
- Article
Visualizing and Measuring Software Portfolio Architecture: A Power Utility Case
By: Robert Lagerström, Carliss Y. Baldwin and Alan MacCormack
In this paper, we test a Design Structure Matrix (DSM) based method for visualizing and
measuring software portfolio architectures. Our data is drawn from a power utility company, comprising 192 software applications with 614 dependencies between them. We
show that the... View Details
- April 2015 (Revised April 2015)
- Case
Yale University Investments Office: February 2015
By: Josh Lerner
David Swensen and the Investments Office staff must decide whether to continue to allocate the bulk of the university's endowment to illiquid investments—hedge funds, private equity, real estate—given the impact of the recent market turmoil. The case explores the risks... View Details
- 2014
- Working Paper
Visualizing and Measuring Software Portfolio Architectures: A Flexibility Analysis
By: Robert Lagerstrom, Carliss Y. Baldwin, Alan MacCormack and David Dreyfus
In this paper, we test a method for visualizing and measuring software portfolio architectures and use our measures to predict the costs of architectural change. Our data is drawn from a biopharmaceutical company, comprising 407 architectural components with 1,157... View Details
- December 2013
- Article
Legislating Stock Prices
By: Lauren Cohen, Karl Diether and Christopher Malloy
We demonstrate that legislation has a simple, yet previously undetected impact on stock prices. Exploiting the voting record of legislators whose constituents are the affected industries, we show that the votes of these "interested" legislators capture important... View Details
- 2013
- Working Paper
Visualizing and Measuring Enterprise Architecture: An Exploratory BioPharma Case
By: Robert Lagerstrom, Carliss Baldwin, Alan MacCormack and David Dreyfus
We test a method that was designed and used previously to reveal the hidden internal architectural structure of software systems. The focus of this paper is to test if it can also uncover new facts about the components and their relationships in an enterprise... View Details
- 2013
- Working Paper
Visualizing and Measuring Enterprise Application Architecture: An Exploratory Telecom Case
By: Robert Lagerstrom, Carliss Y. Baldwin, Alan MacCormack and Stephan Aier
We test a method for visualizing and measuring enterprise application architectures. The method was designed and previously used to reveal the hidden internal architectural structure of software applications. The focus of this paper is to test if it can also uncover... View Details
- June 2013 (Revised January 2016)
- Case
Château Margaux: Launching the Third Wine
By: Elie Ofek and Eric E. Vogt
Château Margaux, one of only five prestigious estates in the Bordeaux Medoc wine region to have been classified as a "first-growth", is facing a host of strategic decisions in early 2013. Up until this point the estate had been selling two red wines, a first wine whose... View Details