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- March 2024 (Revised June 2024)
- Case
The Annenberg Foundation: Promoting Diversity in the Investment Management Industry
By: Randolph B. Cohen and Johnson Elugbadebo
Keywords: Investment Management; Investing; Foundations; Fund Management; Diversity; Investment; Investment Funds; Financial Services Industry
Cohen, Randolph B., and Johnson Elugbadebo. "The Annenberg Foundation: Promoting Diversity in the Investment Management Industry." Harvard Business School Case 224-065, March 2024. (Revised June 2024.)
- 2023
- Other Unpublished Work
If 3 Was 9
One determinant of where economies and markets are headed is how well we handle the climate crisis. Headlines on the climate tend to emphasize two points. First, average global temps are rising, with it being the hottest summer in 1,000 centuries per some estimates.... View Details
Cohen, Randolph B. "If 3 Was 9." August 2023. (LinkedIn Articles.)
- 2023
- Other Unpublished Work
Visions of Vision Pro
Daily ups and downs of the market are often driven by changes in interest-rate expectations and investor risk aversion. But over the long run, it's often technological change that is the primary driver of value. A decade ago, Tyler Cowen argued in his book The Great... View Details
Cohen, Randolph B. "Visions of Vision Pro." August 2023. (LinkedIn Articles.)
- 2023
- Other Unpublished Work
Unprecedented: Remote Work and the Strange Economy of 2023
The low unemployment rate which suggests a strong economy and the low productivity and GDP growth that seems more consistent with less robust conditions sit uneasily together. It's a mystery! But it may be that societal changes like remote work can reconcile the... View Details
Keywords: Economy; Economic Growth; Economic Slowdown and Stagnation; Employment; Working Conditions
Cohen, Randolph B. "Unprecedented: Remote Work and the Strange Economy of 2023." July 2023. (LinkedIn Articles.)
- April 2023
- Case
Twitter: The Freedom to Speak Freely and Be Heard
By: Randolph B. Cohen, Carin-Isabel Knoop and Mel Martin
In April 2022, serial entrepreneur Elon Musk announced that he would be interested in purchasing the social media site Twitter for $44 billion. With more than 100 million twitter followers, Musk had historically leveraged the site to engage with the customers of his... View Details
- September 2022
- Background Note
Highly Selective College Admissions
Cohen, Randolph B. "Highly Selective College Admissions." Harvard Business School Background Note 223-031, September 2022.
- September 2022
- Case
Knock, Knock: The Case of Tetraethyl Lead
Cohen, Randolph B. "Knock, Knock: The Case of Tetraethyl Lead." Harvard Business School Case 223-028, September 2022.
- 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.
- 2017
- White Paper
Illuminating the Path Forward: Breaking Free from the 60/40 Portfolio
By: Ross Stevens, Joshua Zwick and Randolph B. Cohen
Stevens, Ross, Joshua Zwick, and Randolph B. Cohen. "Illuminating the Path Forward: Breaking Free from the 60/40 Portfolio." White Paper, Stone Ridge, 2017.
- December 2012
- Case
Jefferson County (A): An EPA Mandate
By: Daniel Bergstresser and Randolph B. Cohen
Jefferson County, Alabama, faces an EPA mandate requiring sewer system upgrades. How will they finance the upgrades? What consequences will follow? View Details
Keywords: Local Government; Debt Management; Bankruptcy; Political Process; Financial Planning; Urban Development; Financing and Loans; Infrastructure; Government and Politics; Public Administration Industry; Alabama
Bergstresser, Daniel, and Randolph B. Cohen. "Jefferson County (A): An EPA Mandate ." Harvard Business School Case 213-056, December 2012.
- December 2012
- Supplement
Jefferson County (B): Borrowing in March 1997
By: Daniel Bergstresser and Randolph B. Cohen
Jefferson County, Alabama faces an EPA mandate requiring sewer system upgrades. How will they finance the upgrades? What consequences will follow? View Details
Keywords: Local Government; Political Process; Bankruptcy; Debt Management; Financial Planning; Urban Development; Environmental Sustainability; Infrastructure; Government and Politics; Borrowing and Debt; Alabama
Bergstresser, Daniel, and Randolph B. Cohen. "Jefferson County (B): Borrowing in March 1997." Harvard Business School Supplement 213-057, December 2012.
- December 2012
- Supplement
Jefferson County (C): Subsequent Issuance
By: Daniel Bergstresser and Randolph B. Cohen
Jefferson County, Alabama, faces an EPA mandate requiring sewer system upgrades. How will they finance the upgrades? What consequences will follow? View Details
Keywords: Local Government; Political Process; Bankruptcy; Debt Management; Financial Planning; Urban Development; Environmental Sustainability; Infrastructure; Government and Politics; Borrowing and Debt; Alabama
Bergstresser, Daniel, and Randolph B. Cohen. "Jefferson County (C): Subsequent Issuance." Harvard Business School Supplement 213-058, December 2012.
- December 2012
- Supplement
Jefferson County (D): February of 2008
By: Daniel Bergstresser and Randolph B. Cohen
Jefferson County, Alabama, faces an EPA mandate requiring sewer system upgrades. How will they finance the upgrades? What consequences will follow? View Details
Keywords: Local Government; Political Process; Bankruptcy; Debt Management; Financial Planning; Urban Development; Environmental Sustainability; Infrastructure; Government and Politics; Borrowing and Debt; Alabama
Bergstresser, Daniel, and Randolph B. Cohen. "Jefferson County (D): February of 2008." Harvard Business School Supplement 213-059, December 2012.
- December 2012 (Revised January 2013)
- Supplement
Jefferson County (E): Postscript
By: Daniel Bergstresser and Randolph B. Cohen
Jefferson County, Alabama, faces an EPA mandate requiring sewer system upgrades. How will they finance the upgrades? What consequences will follow? View Details
Keywords: Local Government; Political Process; Bankruptcy; Debt Management; Financial Planning; Urban Development; Infrastructure; Borrowing and Debt; Government and Politics; Public Administration Industry; Alabama
Bergstresser, Daniel, and Randolph B. Cohen. "Jefferson County (E): Postscript." Harvard Business School Supplement 213-060, December 2012. (Revised January 2013.)
- March 2012 (Revised February 2013)
- Teaching Note
AQR's DELTA Strategy (TN)
By: Daniel Bergstresser, Lauren Cohen, Christopher Malloy, Randolph B. Cohen and Timothy Gray
- March 2012 (Revised February 2013)
- Teaching Note
AQR's Momentum Funds (TN) (A) and (B)
By: Daniel Bergstresser, Lauren Cohen, Christopher Malloy, Randolph B. Cohen and Timothy Gray
- October 2011 (Revised March 2012)
- Case
AQR's DELTA Strategy
By: Daniel Bergstresser, Lauren Cohen, Randolph B. Cohen and Christopher Malloy
In the summer of 2008, AQR Capital Management was considering the launch of a new hedge fund strategy. The proposed DELTA portfolio would offer investors exposure to a basket of nine major hedge fund strategies. The DELTA strategy would be innovative in two ways.... View Details
Bergstresser, Daniel, Lauren Cohen, Randolph B. Cohen, and Christopher Malloy. "AQR's DELTA Strategy." Harvard Business School Case 212-038, October 2011. (Revised March 2012.)
- April 2011 (Revised May 2011)
- Supplement
AQR's Momentum Funds (B)
By: Daniel Baird Bergstresser, Lauren H. Cohen, Randolph B. Cohen and Christopher J. Malloy
This is a (B) case for AQR's Momentum Funds. It follows the first year of performance of the funds after launching, and gives students a critical inflection point for analyzing the nascent stages of a new product launch and the potential path dependence of the product... View Details
Keywords: Change; Decision Choices and Conditions; Investment Funds; Product Launch; Product; Performance; Perspective; Strategy
Bergstresser, Daniel Baird, Lauren H. Cohen, Randolph B. Cohen, and Christopher J. Malloy. "AQR's Momentum Funds (B)." Harvard Business School Supplement 211-075, April 2011. (Revised May 2011.)
- September 2010 (Revised March 2012)
- Case
AQR's Momentum Funds (A)
By: Daniel Baird Bergstresser, Lauren H. Cohen, Randolph B. Cohen and Christopher J. Malloy
AQR is a hedge fund based in Greenwich, Connecticut, that is considering offering a wholly new line of product to retail investors, namely the ability to invest in the price phenomenon known as momentum. There is a large body of empirical evidence supporting momentum... View Details
Keywords: Financial Strategy; Investment Funds; Investment Portfolio; Governing Rules, Regulations, and Reforms; Product Development; Financial Services Industry; Greenwich
Bergstresser, Daniel Baird, Lauren H. Cohen, Randolph B. Cohen, and Christopher J. Malloy. "AQR's Momentum Funds (A)." Harvard Business School Case 211-025, September 2010. (Revised March 2012.)
- September 2007
- Case
Dice-K: The Hundred (Plus) Million Dollar Man
Describes the efforts made by the Boston Red Sox to sign superstar Japanese pitcher Daisuke (Dice-K) Matsuzaka within the context of the team's attempts to keep pace with longtime rival, the New York Yankees. In late 2006, Dice-K is viewed as the prize of the free... View Details
Cohen, Randolph B., Michael Barry, and F. Mark D'Annolfo. "Dice-K: The Hundred (Plus) Million Dollar Man." Harvard Business School Case 208-043, September 2007.