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- All HBS Web (226)
- Faculty Publications (46)
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- 2018
- Working Paper
Detecting Anomalies: The Relevance and Power of Standard Asset Pricing Tests
By: Malcolm Baker, Patrick Luo and Ryan Taliaferro
The two standard approaches for identifying capital market anomalies are cross-sectional coefficient tests, in the spirit of Fama and MacBeth (1973), and time-series intercept tests, in the spirit of Jensen (1968). A new signal can pass the first test, which we label a... View Details
Keywords: Investment Management; Anomalies; Portfolio Construction; Transaction Costs; Investment; Management; Asset Pricing; Market Transactions; Cost
Baker, Malcolm, Patrick Luo, and Ryan Taliaferro. "Detecting Anomalies: The Relevance and Power of Standard Asset Pricing Tests." Working Paper, July 2018.
- April 2005
- Case
The University of Chicago Investment Office: Investing in Timber
In 2005, the University of Chicago Investment office was deciding how much capital to allocate toward timber investing. Explores the challenges associated with optimal portfolio construction when one of the invested assets is illiquid with limited historical price... View Details
Keywords: Investment Portfolio; Decision Choices and Conditions; Financial Services Industry; Education Industry
Hecht, Peter A., and David Mace. "The University of Chicago Investment Office: Investing in Timber." Harvard Business School Case 205-101, April 2005.
- Research Summary
Investment Management
Professor Chacko's research looks into the portfolio choice decisions of individuals and institutions. He is particularly concerned with optimal portfolio choice and consumption decisions in a dynamic framework. His work looks at how economic agents make these... View Details
- 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
- 2020
- Working Paper
Best Ideas
By: Miguel Antón, Randolph B. Cohen and Christopher Polk
We find that the stocks in which active mutual fund or hedge fund managers display the most conviction towards ex-ante, their “Best ideas,” outperform the market, as well as the other stocks in those managers’ portfolios, by approximately 2.8 to 4.5 percent per year,... View Details
Keywords: Mutual Funds; Managerial Skill; Market Efficiency; Investment Funds; Management; Investment Portfolio; Decision Making
Antón, Miguel, Randolph B. Cohen, and Christopher Polk. "Best Ideas." Harvard Business School Working Paper, No. 21-004, June 2020.
- Teaching Interest
Investment Management Workshop
By: Luis M. Viceira
Investing and Strategic Decision-Making for Principals, Portfolio Managers, and Executives of Asset Management Firms
For nearly 50 years, the Investment Management Workshop (IMW) has convened the world's top principals, portfolio managers, and... View Details
- 2015
- Working Paper
What Do Private Equity Firms Say They Do?
By: Paul A. Gompers, Steven N. Kaplan and Vladimir Mukharlyamov
We survey 79 private equity investors with combined assets under management (AUM) of over $750 billion about their practices in firm valuation, capital structure, governance, and value creation. Investors rely primarily on internal rate of return (IRR) and multiples to... View Details
Keywords: Governance; Value Creation; Private Equity; Capital Structure; Valuation; Management Practices and Processes
Gompers, Paul A., Steven N. Kaplan, and Vladimir Mukharlyamov. "What Do Private Equity Firms Say They Do?" Harvard Business School Working Paper, No. 15-081, April 2015.
- May 2021
- Article
Preparing for a Pandemic: Accelerating Vaccine Availability
By: Amrita Ahuja, Susan Athey, Arthur Baker, Eric Budish, Juan Camilo Castillo, Rachel Glennerster, Scott Duke Kominers, Michael Kremer, Jean Lee, Canice Prendergast, Christopher M. Snyder, Alex Tabarrok, Brandon Joel Tan and Witold Wiecek
Vaccinating the world’s population quickly in a pandemic has enormous health and economic benefits. We analyze the problem faced by governments in determining the scale and structure of procurement for vaccines. We analyze alternative approaches to procurement, arguing... View Details
Keywords: Vaccines; Procurement; Health Pandemics; Health Care and Treatment; Acquisition; Cooperation
Ahuja, Amrita, Susan Athey, Arthur Baker, Eric Budish, Juan Camilo Castillo, Rachel Glennerster, Scott Duke Kominers, Michael Kremer, Jean Lee, Canice Prendergast, Christopher M. Snyder, Alex Tabarrok, Brandon Joel Tan, and Witold Wiecek. "Preparing for a Pandemic: Accelerating Vaccine Availability." AEA Papers and Proceedings 111 (May 2021): 331–335.
- November 2024 (Revised January 2025)
- Case
Balancing Impact: Modeling the Future at British International Investment
By: Shawn Cole and Jonah Zahnd
In 2022, British International Investment (BII), the £8.1 billion development finance arm of the British government, implemented a new impact measurement system called the Impact Score to align its financial and impact objectives systematically. The tool was designed... View Details
Keywords: Investment Portfolio; Measurement and Metrics; Corporate Social Responsibility and Impact; Alignment; United Kingdom
Cole, Shawn, and Jonah Zahnd. "Balancing Impact: Modeling the Future at British International Investment." Harvard Business School Case 225-047, November 2024. (Revised January 2025.)
- Article
What Do Private Equity Firms Say They Do?
By: Paul A. Gompers, Steven N. Kaplan and Vladimir Mukharlyamov
We survey 79 private equity investors with combined assets under management (AUM) of over $750 billion about their practices in firm valuation, capital structure, governance, and value creation. Investors rely primarily on internal rate of return (IRR) and multiples to... View Details
Gompers, Paul A., Steven N. Kaplan, and Vladimir Mukharlyamov. "What Do Private Equity Firms Say They Do?" Journal of Financial Economics 121, no. 3 (September 2016): 449–476.
- Research Summary
Working Hard and Investing for an Early Retirement
I examine consumption, leisure, and portfolio choices made over the life-cycle using a model allowing for semi-flexible leisure and an endogenously chosen retirement date. Under a Cobb-Douglas utility specification, I present closed-form expressions for optimal... View Details
- December 2020
- Article
Stock Market Returns and Consumption
By: Marco Di Maggio, Amir Kermani and Kaveh Majlesi
This paper employs Swedish data containing security level information on households' stock holdings to investigate how consumption responds to changes in stock market returns. We exploit households’ portfolio weights in previous years as an instrument for actual... View Details
Keywords: Capital Gain; Dividend Income; Consumption; Near-rational Behavior; Investment Return; Household; Spending; Behavior
Di Maggio, Marco, Amir Kermani, and Kaveh Majlesi. "Stock Market Returns and Consumption." Journal of Finance 75, no. 6 (December 2020): 3175–3219. (DFA Distinguished Paper Prize.)
- July 2021 (Revised December 2021)
- Case
Pershing Square's Pandemic Trade (A)
By: Emil N. Siriwardane, Luis M. Viceira, Dean Xu and Lucas Baker
This case explores the decision that Bill Ackman, CEO and founder of the hedge fund Pershing Square Capital, was considering in late February 2020 about hedging the exposure of the fund’s portfolio from the potential financial fallout ensuing from an extreme event like... View Details
Keywords: Health Pandemics; Financial Liquidity; Cost Management; Decision Choices and Conditions; Risk Management
Siriwardane, Emil N., Luis M. Viceira, Dean Xu, and Lucas Baker. "Pershing Square's Pandemic Trade (A)." Harvard Business School Case 222-007, July 2021. (Revised December 2021.)
- December 2019
- Article
Brokers and Order Flow Leakage: Evidence from Fire Sales
By: Andrea Barbon, Marco Di Maggio, Francesco Franzoni and Augustin Landier
Using trade-level data, we study whether brokers play a role in spreading order flow information. We focus on large portfolio liquidations, which result in temporary drops in stock prices, and identify the brokers that intermediate these trades. We show that these... View Details
Keywords: Predatory Trading; Back Running; Fire Sales; Brokers; Stocks; Price; Information; Knowledge Dissemination; Ethics
Barbon, Andrea, Marco Di Maggio, Francesco Franzoni, and Augustin Landier. "Brokers and Order Flow Leakage: Evidence from Fire Sales." Journal of Finance 74, no. 6 (December 2019): 2707–2749. (LEAD ARTICLE.)
- March 2013
- Article
The Client Is King: Do Mutual Fund Relationships Bias Analyst Recommendations?
By: Michael Firth, Chen Lin, Ping Liu and Yuhai Xuan
This paper investigates whether the business relations between mutual funds and brokerage firms influence sell-side analyst recommendations. Using a unique data set that discloses brokerage firms' commission income derived from each mutual fund client as well as the... View Details
Firth, Michael, Chen Lin, Ping Liu, and Yuhai Xuan. "The Client Is King: Do Mutual Fund Relationships Bias Analyst Recommendations?" Journal of Accounting Research 51, no. 1 (March 2013): 165–200.
- 19 Jan 2016
- First Look
January 19, 2016
new roles for user innovators; user interactions with firms; and user innovation in practice, describing experiments, toolkits, and crowdsourcing and crowdfunding. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=42312 forthcoming Journal of View Details
Keywords: Sean Silverthorne
- 15 Nov 2016
- First Look
November 15, 2016
Case 517-021 Brand Portfolio Strategy and Brand Architecture While companies choose to brand their products and services in many different ways, there are some central tenets that help define an optimal... View Details
Keywords: Sean Silverthorne
- November 2007
- Background Note
Bayesian Estimation & Black-Litterman
By: Joshua D. Coval and Erik Stafford
Describes a practical method for asset allocation that is more robust to estimation errors than the traditional implementation of mean-variance optimization with sample means and covariances. The Bayesian inspired Black-Litterman model is described after introducing... View Details
Coval, Joshua D., and Erik Stafford. "Bayesian Estimation & Black-Litterman." Harvard Business School Background Note 208-085, November 2007.
- 2011
- Working Paper
When Smaller Menus Are Better: Variability in Menu-Setting Ability
Are large menus better than small menus? Recent literature argues that individuals' apparent preference for smaller menus can be explained by choosers' behavioral biases or informational limitations. These explanations imply that absent behavioral or informational... View Details
Keywords: Experience and Expertise; Decision Choices and Conditions; Investment; Investment Portfolio; Size; Quality
Goldreich, David, and Hanna Halaburda. "When Smaller Menus Are Better: Variability in Menu-Setting Ability." Harvard Business School Working Paper, No. 11-086, February 2011. (Revised April 2011, August 2011, December 2011.)
- December 2018
- Case
Corporate Transformation at Merck KGaA, Darmstadt, Germany
By: Joseph B. Fuller, Amy C. Edmondson, Daniela Beyersdorfer and Tonia Labruyere
When Stefan Oschmann became CEO and chairman of the executive board of Merck KGaA, Darmstadt, Germany, in 2016, the company had started its transformation from a mid-tier traditional German industry player to a global modern science and technology player. The... View Details
Keywords: Corporate Governance With Family Ownership; Transformation; Change Management; Restructuring; Corporate Governance; Family Ownership
Fuller, Joseph B., Amy C. Edmondson, Daniela Beyersdorfer, and Tonia Labruyere. "Corporate Transformation at Merck KGaA, Darmstadt, Germany." Harvard Business School Case 319-072, December 2018.