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- 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...
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Keywords:
Pooling;
Generalist Model;
Specialist Model;
Operations;
Service Operations;
Management;
Job Design and Levels;
Financial Services Industry;
United States
Shih, Willy C., and Antonio Moreno. "Vanguard Retail Operations (A)." Harvard Business School Case 620-104, June 2020. (Revised May 2022.)
- 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...
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Keywords:
Pooling;
Generalist Model;
Specialist Model;
Service Operations;
Management;
Financial Services Industry;
United States
Shih, Willy C., and Antonio Moreno. "Vanguard Retail Operations (B)." Harvard Business School Supplement 620-105, June 2020. (Revised August 2020.)
- 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....
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Keywords:
COVID-19;
Stock Returns;
Health Pandemics;
Stocks;
Investment Return;
Forecasting and Prediction
Alfaro, Laura, Anusha Chari, Andrew Greenland, and Peter K. Schott. "Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time." NBER Working Paper Series, No. 26950, April 2020. (Revised May 2020.)
- 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...
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Keywords:
Mathematical Methods
Elkies, Noam D., and Scott Duke Kominers. "Configurations of Extremal Type II Codes via Harmonic Weight Enumerators." Journal de Théorie des Nombres de Bordeaux 31, no. 3 (2019): 679–688.
- 2019
- Working Paper
Identification Using Border Approaches and IVs
By: Xing Li, Wesley R. Hartmann and Tomomichi Amano
We document that recent quasi-experimental strategies for identifying advertising effects can be derived from a model in which ad decisions are made at a more aggregate level than conversion is measured. Next, we show that the identifying variation in one of these...
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Li, Xing, Wesley R. Hartmann, and Tomomichi Amano. "Identification Using Border Approaches and IVs." Working Paper, June 2019.
- 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...
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Barberis, Nicholas, Robin Greenwood, Lawrence Jin, and Andrei Shleifer. "Extrapolation and Bubbles." Journal of Financial Economics 129, no. 2 (August 2018): 203–227.
- 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
Keywords:
Affordable Care Act (ACA);
Subsidies;
Weight Loss;
Obesity;
Incentives;
Behavioral Economics;
Motivation and Incentives;
Behavior;
Health Disorders;
Health Care and Treatment;
Compensation and Benefits;
United States
John, Leslie K., Andrea Troxel, William Yancy, Joelle Y. Friedman, Jingsan Zhu, Lin Yang, Robert Galvin, Karen Miller-Kovach, Scott Halpern, George Loewenstein, and Kevin Volpp. "The Effect of Cost Sharing on an Employee Weight Loss Program: A Randomized Trial." American Journal of Health Promotion 32, no. 1 (January 2018): 170–176.
- 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...
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Baker, Malcolm, Ryan Taliaferro, and Terry Burnham. "Optimal Tilts: Combining Persistent Characteristic Portfolios." Financial Analysts Journal 73, no. 4 (Fourth Quarter 2017): 75–89.
- 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...
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Berk, Richard, Hoda Heidari, Shahin Jabbari, Matthew Joseph, Michael J. Kearns, Jamie Morgenstern, Seth Neel, and Aaron Roth. "A Convex Framework for Fair Regression." Paper presented at the 4th Workshop on Fairness, Accountability, and Transparency in Machine Learning, Special Interest Group on Knowledge Discovery and Data Mining (SIGKDD), August 14, 2017.
- 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...
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Keywords:
Inflation Expectations;
Survey Experiment;
Rational Inattention;
Supermarkets;
Macroeconomics;
Household;
Inflation and Deflation;
Policy
Cavallo, Alberto, Guillermo Cruces, and Ricardo Perez-Truglia. "Inflation Expectations, Learning, and Supermarket Prices: Evidence from Survey Experiments." American Economic Journal: Macroeconomics 9, no. 3 (July 2017): 1–35.
- 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...
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Keywords:
Inequality Aversion;
Compensation;
Stock Options;
Scarcity;
Experiment;
Compensation and Benefits;
Equity;
Equality and Inequality;
Perception
Bao, Jiayi, and Andy Wu. "Equality and Equity in Compensation." Harvard Business School Working Paper, No. 17-093, April 2017.
- 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...
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Subramanian, Guhan. "Deal Process Design in Management Buyouts." Harvard Law Review 130, no. 2 (December 2016): 590–658.
- 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...
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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.
- 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...
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Keywords:
Nutritional Information;
Obesity;
Weight Loss;
App Development;
Business Startups;
Nutrition;
Health;
Information;
Mobile and Wireless Technology;
Entrepreneurship;
Social Enterprise;
Information Technology Industry;
Health Industry
Kanter, Rosabeth M., Tessa Natanay Hamilton, and Ai-Ling Jamila Malone. "Advanced Leadership Pathways: Laurent Adamowicz and Bon'App." Harvard Business Publishing Teaching Note 316-025, 2016.
- 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...
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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.)
- 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....
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Keywords:
Governance;
Central Banking;
Laws and Statutes;
Government and Politics;
History;
Public Administration Industry;
United States
Moss, David, and Marc Campasano. "Battle Over a Bank: Defining the Limits of Federal Power Under a New Constitution." Harvard Business School Case 716-052, February 2016. (Revised August 2017.)
- 2017
- Working Paper
Optimal Tilts: Combining Persistent Characteristic Portfolios
By: Malcolm Baker, Ryan Taliaferro and Terry Burnham
We examine the optimal weighting of four tilts in US 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...
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Baker, Malcolm, Ryan Taliaferro, and Terry Burnham. "Optimal Tilts: Combining Persistent Characteristic Portfolios." Working Paper, March 2017.
- September 2015
- Article
Design and Implementation of a Privacy Preserving Electronic Health Record Linkage Tool in Chicago
By: Abel Kho, John Cashy, Kathryn Jackson, Adam Pah, Satyender Goel, Jorn Boehnke, John Eric Humphries, Scott Duke Kominers and et al.
Objective
To design and implement a tool that creates a secure, privacy preserving linkage of electronic health record (EHR) data across multiple sites in a large metropolitan area in the United States (Chicago, IL), for use in clinical... View Details
To design and implement a tool that creates a secure, privacy preserving linkage of electronic health record (EHR) data across multiple sites in a large metropolitan area in the United States (Chicago, IL), for use in clinical... View Details
Keywords:
Information;
Customers;
Safety;
Rights;
Ethics;
Entrepreneurship;
Health Care and Treatment;
Health Industry;
Chicago
Kho, Abel, John Cashy, Kathryn Jackson, Adam Pah, Satyender Goel, Jorn Boehnke, John Eric Humphries, Scott Duke Kominers, and et al. "Design and Implementation of a Privacy Preserving Electronic Health Record Linkage Tool in Chicago." Journal of the American Medical Informatics Association 22, no. 5 (September 2015): 1072–1080.
- 2016
- Working Paper
Through the Grapevine: Network Effects on the Design of Executive Compensation Contracts
By: Susanna Gallani
Effective design of executive compensation contracts involves choosing and weighting performance measures, as well as defining the mix between fixed and incentive-based pay components, with a view to fostering talent retention and goal congruence. The variability in...
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Keywords:
Compensation Design;
Board Interlocks;
Compensation Consultants;
Network Centrality;
Homophily;
Quadratic Assignment Procedure;
Blockholders;
Executive Compensation
Gallani, Susanna. "Through the Grapevine: Network Effects on the Design of Executive Compensation Contracts." Harvard Business School Working Paper, No. 16-019, August 2015. (Revised December, 2016.)
- Article
Do Strict Capital Requirements Raise the Cost of Capital? Bank Regulation, Capital Structure and the Low Risk Anomaly
By: Malcolm Baker and Jeffrey Wurgler
Traditional capital structure theory predicts that reducing banks' leverage reduces the risk and cost of equity but does not change the weighted average cost of capital, and thus the rates for borrowers. We confirm that the equity of better-capitalized banks has lower...
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Baker, Malcolm, and Jeffrey Wurgler. "Do Strict Capital Requirements Raise the Cost of Capital? Bank Regulation, Capital Structure and the Low Risk Anomaly." American Economic Review: Papers and Proceedings 105, no. 5 (May 2015): 315–320.