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- Faculty Publications (28)
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- All HBS Web (103)
- Faculty Publications (28)
- Web
Courses by Title - Course Catalog
Operations Technology & Operations Management Ryan Buell , Robert Markey Fall 2025 Q1Q2 3.0 Managing and Innovating in Financial Services Finance David Scharfstein Spring 2026 Q3Q4 3.0 Market Perspectives Finance View Details
- Web
Courses by Faculty Unit - Course Catalog
David Scharfstein Spring 2026 Q3Q4 3.0 Market Perspectives Robin Greenwood Richard Ruback Fall 2025 Q1Q2 3.0 Private Equity Finance Ted Berk Fall 2025 Q1Q2 3.0 Real Estate Investing Dwight Angelini W. Matt... View Details
- Web
Courses by Faculty - Course Catalog
Entrepreneurial Management, Finance Spring 2026 Q3Q4 3.0 IFC: Israel; Startups and Venture Capital Finance January 2026 J 3.0 Robin Greenwood Market Perspectives Finance Fall... View Details
- Web
Courses by Faculty Unit - Course Catalog
David Scharfstein Spring 2026 Q3Q4 3.0 Market Perspectives Robin Greenwood Richard Ruback Fall 2025 Q1Q2 3.0 Private Equity Finance Ted Berk Fall 2025 Q1Q2 3.0 Real Estate Investing Dwight Angelini W. Matt... View Details
- 05 Aug 2015
- News
Activist Investors Are Shaking Up Business Schools, Too
- 19 Jan 2013
- News
Is All This Stock Market Optimism a Red Flag?
- 11 Jun 2013
- News
‘Financialization’ as a Cause of Economic Malaise
- 10 Dec 2013
- News
Wall Street feeds the ravenous debt beast again
- Mar 2012
- Article
How to Make Finance Work
Once a sleepy old boys' club, the U.S. financial sector is now a dynamic and growing business that attracts the best and the brightest. It is tempting to declare the industry a roaring success. But its... View Details
- 02 Jan 2018
- Research & Ideas
The Most Popular Stories and Research Papers of 2017
prioritization. Findings show that it happens because people feel positive emotions after task completion, yet it could hurt long-term performance. Workloads could be structured to help employee development as well as organizational performance. Rainy Day Stocks View Details
Keywords: by Sean Silverthorne
- 13 Oct 2010
- Research & Ideas
How Government can Discourage Private Sector Reliance on Short-Term Debt
government can counteract some of this by issuing more short-term debt. Here Robin Greenwood discusses the research findings in the paper, and... View Details
- Article
Investor Activism and Takeovers
By: Robin Greenwood and Michael Schor
Recent work documents large positive abnormal returns around the time that a hedge fund announces its activist intentions with a publicly listed firm. We show that these returns are largely explained by the ability of activists to force target firms into a takeover: In... View Details
Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Public Ownership
Greenwood, Robin, and Michael Schor. "Investor Activism and Takeovers." Journal of Financial Economics 92, no. 3 (June 2009): 362–375.
- 03 Jun 2014
- News
‘Victims’ of churn are accessories to the crime
- 2008
- Working Paper
Inexperienced Investors and Bubbles
By: Robin Greenwood and Stefan Nagel
We use mutual fund manager data from the technology bubble to examine the hypothesis that inexperienced investors play a role in the formation of asset price bubbles. Using age as a proxy for managers' investment experience, we find that around the peak of the... View Details
Keywords: Investment; Stocks; Information Technology; Price Bubble; Asset Management; Experience and Expertise
Greenwood, Robin, and Stefan Nagel. "Inexperienced Investors and Bubbles." NBER Working Paper Series, No. 14111, June 2008.
- August 2009
- Article
Inexperienced Investors and Bubbles
By: Robin Greenwood and Stefan Nagel
We use mutual fund manager data from the technology bubble to examine the hypothesis that inexperienced investors play a role in the formation of asset price bubbles. Using age as a proxy for managers' investment experience, we find that around the peak of the... View Details
Keywords: Asset Price Bubbles; Investment Experience; Investor Age; Trend Chasing; Investment; Experience and Expertise; Age; Behavioral Finance; Price Bubble; Information Technology; Stocks
Greenwood, Robin, and Stefan Nagel. "Inexperienced Investors and Bubbles." Journal of Financial Economics 93, no. 2 (August 2009): 239–258. (formerly NBER Working Paper No. 14111, June 2008.)
- 2007
- Working Paper
Hedge Fund Investor Activism and Takeovers
By: Robin Greenwood and Michael Schor
We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are... View Details
Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance
Greenwood, Robin, and Michael Schor. "Hedge Fund Investor Activism and Takeovers." Harvard Business School Working Paper, No. 08-004, July 2007.
- 2007
- Other Unpublished Work
Hedge Fund Investor Activism and Takeovers
By: Robin Greenwood and Michael Schor
We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are acquired ex-post, but not... View Details
Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance
Greenwood, Robin, and Michael Schor. "Hedge Fund Investor Activism and Takeovers." 2007.
- March 2009
- Article
Trading Restrictions and Stock Prices
By: Robin Greenwood
Firms can manipulate their stock price by limiting the ability of their investors to sell. I examine a series of corporate events in Japan in which firms actively reduced their float—the fraction of shares available to trade—for periods of one to three months, locking... View Details
Greenwood, Robin. "Trading Restrictions and Stock Prices." Review of Financial Studies 22, no. 3 (March 2009): 509–539.
- March 2005
- Article
Short- and Long-term Demand Curves for Stocks: Theory and Evidence on the Dynamics of Arbitrage
By: Robin Greenwood
I develop a framework to analyze demand curves for multiple risky securities at extended horizons in a setting with limits-to-arbitrage. Following an unexpected change in uninformed investor demand for several assets, I predict returns of each security to be... View Details
Keywords: Limits To Arbitrage; Event Studies; Demand Curves; Portfolio Choice; Framework; Demand and Consumers; Change; Risk and Uncertainty; Debt Securities; Forecasting and Prediction; Stocks; Assets; Investment Portfolio; System Shocks; Price; Japan
Greenwood, Robin. "Short- and Long-term Demand Curves for Stocks: Theory and Evidence on the Dynamics of Arbitrage." Journal of Financial Economics 75, no. 3 (March 2005): 607–649.
- Article
Waves in Ship Prices and Investment
By: Robin Greenwood and Samuel G. Hanson
We study the link between investment boom and bust cycles and returns on capital in the dry bulk shipping industry. We show that high current ship earnings are associated with high used ship prices and heightened industry investment in new ships, but forecast low... View Details
Greenwood, Robin, and Samuel G. Hanson. "Waves in Ship Prices and Investment." Quarterly Journal of Economics 130, no. 1 (February 2015): 55–109.