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- All HBS Web
(788)
- News (135)
- Research (601)
- Events (1)
- Multimedia (2)
- Faculty Publications (206)
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- 2022
- Working Paper
Stock Market Stimulus
By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler
We study the stock market effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to Hong Kong citizens. The first two rounds of U.S. checks appear to have increased retail buying and share prices of... View Details
Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong; China
Greenwood, Robin, Toomas Laarits, and Jeffrey Wurgler. "Stock Market Stimulus." NBER Working Paper Series, No. 29827, March 2022. (Revised November 2022.)
- October 2023
- Article
Stock Market Stimulus
By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler
We study the stock market effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to Hong Kong citizens. The first two rounds of U.S. checks appear to have increased retail buying and share prices of... View Details
Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong
Greenwood, Robin, Toomas Laarits, and Jeffrey Wurgler. "Stock Market Stimulus." Review of Financial Studies 36, no. 10 (October 2023): 4082–4112. (Also NBER Working Paper Series, No. 29827, January 2023.)
- 2024
- Working Paper
What Triggers National Stock Market Jumps?
By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
Keywords: Uncertainty; Policy Uncertainty; Stock Market; Financial Markets; Volatility; Risk and Uncertainty; Policy; Newspapers
Baker, Scott R., Nicholas Bloom, Steven J. Davis, and Marco Sammon. "What Triggers National Stock Market Jumps?" Working Paper, December 2024.
- 19 Mar 2018
- News
Giving stock away to staff doesn't absolve share buybacks
- October 2000
- Article
The Equity Share in New Issues and Aggregate Stock Returns
By: Malcolm Baker and Jeffrey Wurgler
The share of equity issues in total new equity and debt issues is a strong predictor of U.S. stock market returns between 1928 and 1997. In particular, firms issue more equity than debt just before periods of low market returns. The equity share in new issues has... View Details
Keywords: Equity; Borrowing and Debt; Stocks; Markets; Debt Securities; Forecasting and Prediction; Accounting Industry; United States
Baker, Malcolm, and Jeffrey Wurgler. "The Equity Share in New Issues and Aggregate Stock Returns." Journal of Finance 55, no. 5 (October 2000): 2219–57.
- 05 Jul 2006
- Working Paper Summaries
Float Manipulation and Stock Prices
- October 2001 (Revised February 2007)
- Background Note
Accounting for Employee Stock Options
Employees who have been granted stock options have the right to purchase shares of their company's stock at a specified price within a specified time period. The accounting for such employee stock options has been a controversial and complex topic for decades. The... View Details
Bradshaw, Mark T. "Accounting for Employee Stock Options." Harvard Business School Background Note 102-039, October 2001. (Revised February 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.
- 2005
- Working Paper
Aggregate Corporate Liquidity and Stock Returns
By: Robin Greenwood
Aggregate investment in cash and liquid assets as a share of total corporate investment is negatively related to subsequent U.S. stock market returns between 1947 and 2003. The share of cash in total investment is a more stable predictor of returns than scaled price... View Details
- March 2000
- Case
Dell Computer Corporation: Share Repurchase Program
By: George C. Chacko and Luis M. Viceira
Dell Computer Corp. announced a share repurchase program shortly after a significant stock price drop. In this announcement, the company also states that it will use options contracts. This case looks at the options transactions and how they relate to Dell's employee... View Details
Chacko, George C., and Luis M. Viceira. "Dell Computer Corporation: Share Repurchase Program." Harvard Business School Case 200-056, March 2000.
- August 2019
- Background Note
Note on Shared Ownership
By: Ethan Bernstein and Nick Rekenthaler
While several tactics can drive company performance by instilling a sense of shared ownership among employees, perhaps the most direct is to actually share ownership with employees. Many public and private companies across industries have done just that, and studies... View Details
Keywords: Employee Stock Ownership Plan; Human Resources; Employees; Human Capital; Ownership; Cooperative Ownership; Employee Ownership; Customer Ownership; Governance
Bernstein, Ethan, and Nick Rekenthaler. "Note on Shared Ownership." Harvard Business School Background Note 420-030, August 2019.
- 2024
- Working Paper
Climate Solutions, Transition Risk, and Stock Returns
By: Shirley Lu, Edward J. Riedl, Simon Xu and George Serafeim
Using large language models to measure firms' climate solution products and services, we find that high-climate solution firms exhibit lower stock returns and higher market valuation multiples. Their stock prices respond positively to events signaling increased demand... View Details
Keywords: Technology; Generative Ai; Large Language Models; Climate Finance; Climate Change; Innovation and Invention; Environmental Sustainability; AI and Machine Learning; Investment; Financial Markets
Lu, Shirley, Edward J. Riedl, Simon Xu, and George Serafeim. "Climate Solutions, Transition Risk, and Stock Returns." Harvard Business School Working Paper, No. 25-024, November 2024.
- December 1999 (Revised April 2012)
- Background Note
Earnings Per Share
By: David F. Hawkins
Discusses accounting rules for earnings per share measurement. The U.S. approach is described in detail and non-U.S. practices are briefly covered. A rewritten version of an earlier note. View Details
Keywords: Business Earnings; Stock Shares; Profit; Governing Rules, Regulations, and Reforms; Measurement and Metrics; United States
Hawkins, David F. "Earnings Per Share." Harvard Business School Background Note 100-015, December 1999. (Revised April 2012.)
- 29 Apr 2015
- Lessons from the Classroom
Use Personal Experience to Pick Winning Stocks
Let's face it: in most cases, the stock market knows what it's doing. With millions of people performing their homework and investing money in stocks they hope will pay off, it's hard for any one person to... View Details
- January 2011 (Revised July 2011)
- Case
Elizabeth Jacobs: Price-Earnings Ratios and Employee Stock Option Grants
By: David F. Hawkins
Analyst questions the value of accounting measurement of earnings per share and stock option costs for equity valuation purposes. View Details
Keywords: Earnings Management; Business Earnings; Employee Stock Ownership Plan; Stock Shares; Employee Ownership; Stock Options; Equity; Accounting Audits; Valuation; Profit Sharing; Accounting Industry
Hawkins, David F. "Elizabeth Jacobs: Price-Earnings Ratios and Employee Stock Option Grants." Harvard Business School Case 111-087, January 2011. (Revised July 2011.)
- August 2005
- Background Note
Dual Class Share Companies
By: Samuel L. Hayes III, Lynn S. Paine and Christopher Bruner
Provides a brief historical overview of dual class share companies in the United States, focusing on the New York Stock Exchange's evolving position on dual class structures since the 1920s, the impact of hostile takeovers on their use since the 1980s, and recent... View Details
Keywords: Acquisition; Debates; Capital Structure; Equity; Business History; Law; Organizational Structure; Business and Shareholder Relations; Perspective; Europe; United States
Hayes, Samuel L., III, Lynn S. Paine, and Christopher Bruner. "Dual Class Share Companies." Harvard Business School Background Note 306-032, August 2005.
- 19 May 2008
- Research & Ideas
Connecting School Ties and Stock Recommendations
Social networks matter for more than just efficient Internet communication. They're also crucial for the strong performance of stock recommendations by analysts, according to researchers at Harvard Business School and the University of... View Details
- December 2009
- Article
Catering Through Nominal Share Prices
By: Malcolm Baker, Robin Greenwood and Jeffrey Wurgler
We propose and test a catering theory of nominal stock prices. The theory predicts that when investors place higher valuation on low-price firms, managers will maintain share prices at lower levels, and vice-versa. Using measures of time-varying catering incentives... View Details
Baker, Malcolm, Robin Greenwood, and Jeffrey Wurgler. "Catering Through Nominal Share Prices." Journal of Finance 64, no. 6 (December 2009): 2559–2590. (Internet Appendix.)
- 09 May 2000
- Research & Ideas
Stock Options Are Not All Created Equal
much larger piece of the company that he appears to be leading toward ruin. It's true that the value of John's existing holding of options and shares will vary considerably with changes in stock price. But... View Details
Keywords: by Brian Hall
- 2008
- Working Paper
Catering through Nominal Share Prices
By: Malcolm Baker, Robin Greenwood and Jeffrey Wurgler
We propose and test a catering theory of nominal stock prices. The theory predicts that when investors place higher valuation on low-price firms, managers will maintain share prices at lower levels, and vice-versa. Using measures of time-varying catering... View Details
Baker, Malcolm, Robin Greenwood, and Jeffrey Wurgler. "Catering through Nominal Share Prices." NBER Working Paper Series, No. w13762, January 2008. (First Draft in 2007.)