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- Faculty Publications (101)
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- 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
- June 2021
- Technical Note
The Weighted Average Cost of Capital (WACC): Derivation, Intuition, and Applications
By: Benjamin C. Esty and E. Scott Mayfield
- 2021
- Working Paper
False Signaling and Personal Moral Failings: Two Distinct Pathways to Hypocrisy with Unequal Moral Weight
By: Jillian J. Jordan and Roseanna Sommers
Moral engagement is a key feature of human nature: we hold moral values, condemn those who violate those values, and attempt to adhere to them ourselves. Yet moral engagement can make us appear hypocritical if we fail to behave morally. When does moral engagement risk... View Details
- 2022
- Working Paper
The Stock Market Value of Human Capital Creation
By: Matthias Regier and Ethan Rouen
We develop a measure of firm-year-specific human capital investment from publicly disclosed personnel expenses (PE) and examine the stock market valuation of this investment. Measuring the future value of PE (PEFV) based on the relation between lagged... View Details
- 2020
- Working Paper
Private Equity and COVID-19
By: Paul A. Gompers, Steven N. Kaplan and Vladimir Mukharlyamov
We survey more than 200 private equity (PE) managers from firms with $1.9 trillion of assets under management (AUM) about their portfolio performance, decisionmaking and activities during the Covid-19 pandemic. Given that PE managers have significant incentives to... View Details
- June 2020 (Revised May 2022)
- Case
Vanguard Retail Operations (A)
By: Willy C. Shih and Antonio Moreno
The first two cases in this series are set in the financial services industry, and explore whether it is better for back-office workers to be generalists who provide the flexibility of being able to handle the complete range of transactions that the company faces or... View Details
- June 2020 (Revised August 2020)
- Supplement
Vanguard Retail Operations (B)
By: Willy C. Shih and Antonio Moreno
The first two cases in this series are set in the financial services industry, and explore whether it is better for back-office workers to be generalists who provide the flexibility of being able to handle the complete range of transactions that the company faces or... View Details
- 2020
- Working Paper
Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time
By: Laura Alfaro, Anusha Chari, Andrew Greenland and Peter K. Schott
We show that unexpected changes in the trajectory of COVID-19 infections predict U.S. stock returns, in real time. Parameter estimates indicate that an unanticipated doubling (halving) of projected infections forecasts next-day decreases (increases) in aggregate U.S.... View Details
- 2019
- Article
Configurations of Extremal Type II Codes via Harmonic Weight Enumerators
By: Noam D. Elkies and Scott Duke Kominers
We prove configuration results for extremal Type II codes, analogous to the configuration results of Ozeki and of the second author for extremal Type II lattices. Specifically, we show that for n ∈{8,24,32,48,56,72,96} every extremal Type II code of length n is... View Details
Keywords: Mathematical Methods
- August 2018
- Article
Extrapolation and Bubbles
By: Nicholas Barberis, Robin Greenwood, Lawrence Jin and Andrei Shleifer
We present an extrapolative model of bubbles. In the model, many investors form their demand for a risky asset by weighing two signals: an average of the asset’s past price changes and the asset’s degree of overvaluation. The two signals are in conflict, and investors... View Details
- January 2018
- Article
The Effect of Cost Sharing on an Employee Weight Loss Program: A Randomized Trial
By: Leslie K. John, Andrea Troxel, William Yancy, Joelle Y. Friedman, Jingsan Zhu, Lin Yang, Robert Galvin, Karen Miller-Kovach, Scott Halpern, George Loewenstein and Kevin Volpp
Purpose: We tested the effects of employer subsidies on employee enrollment, attendance, and weight loss in a nationally-available weight management program.
Design: A randomized trial tested the impact of employer subsidy: 100%; 80% 50% and a hybrid 50% subsidy... View Details
Design: A randomized trial tested the impact of employer subsidy: 100%; 80% 50% and a hybrid 50% subsidy... View Details
- Fourth Quarter 2017
- Article
Optimal Tilts: Combining Persistent Characteristic Portfolios
By: Malcolm Baker, Ryan Taliaferro and Terry Burnham
We examine the optimal weighting of four tilts in U.S. equity markets from 1968 through 2014. We define a “tilt” as a characteristic-based portfolio strategy that requires relatively low annual turnover. This is a continuum, with small size (a very persistent... View Details
- 14 Aug 2017
- Conference Presentation
A Convex Framework for Fair Regression
By: Richard Berk, Hoda Heidari, Shahin Jabbari, Matthew Joseph, Michael J. Kearns, Jamie Morgenstern, Seth Neel and Aaron Roth
We introduce a flexible family of fairness regularizers for (linear and logistic) regression problems. These regularizers all enjoy convexity, permitting fast optimization, and they span the range from notions of group fairness to strong individual fairness. By varying... View Details
- July 2017
- Article
Inflation Expectations, Learning, and Supermarket Prices: Evidence from Survey Experiments
By: Alberto Cavallo, Guillermo Cruces and Ricardo Perez-Truglia
Information frictions play a central role in the formation of household inflation expectations, but there is no consensus about their origins. We address this question with novel evidence from survey experiments. We document two main findings. First, individuals in... View Details
- 2017
- Working Paper
Equality and Equity in Compensation
By: Jiayi Bao and Andy Wu
Equity compensation is widely used for incentivizing skilled employees, particularly in new technology businesses. Traditional theories explaining why firms offer equity suggest that workers with higher rank should receive compensation packages more heavily weighted in... View Details
- December 2016
- Article
Deal Process Design in Management Buyouts
Management buyouts (MBOs) are an economically and legally significant class of transaction: not only do they account for more than $10 billion in deal volume per year, on average, but they also play an important role in defining the relationship between inside and... View Details
- 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
- 2016
- Teaching Note
Advanced Leadership Pathways: Laurent Adamowicz and Bon'App
By: Rosabeth M. Kanter, Tessa Natanay Hamilton and Ai-Ling Jamila Malone
Teaching Note for Case 314-028. After a successful career as Chairman and CEO of Paris-based luxury food company, Fauchon, Laurent Adamowicz sought to provide a solution to a large scale complex problem. Ultimately, Adamowicz created a mobile application to provide... View Details
- 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
- February 2016 (Revised August 2017)
- Case
Battle Over a Bank: Defining the Limits of Federal Power Under a New Constitution
By: David Moss and Marc Campasano
In late February, 1791, Treasury Secretary Alexander Hamilton submitted a report to President Washington defending his recent proposal for a national bank, which he hoped would bolster the American economy and assist the federal government in managing its finances.... View Details