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- All HBS Web
(3,158)
- People (5)
- News (697)
- Research (2,057)
- Events (8)
- Multimedia (14)
- Faculty Publications (905)
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- 09 Jun 2020
- Working Paper Summaries
Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time
- September 2023
- Article
Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement
By: George Serafeim and Aaron Yoon
We investigate whether ESG ratings predict future ESG news and the associated market reactions. We find that the consensus rating predicts future news, but its predictive ability diminishes for firms with large disagreement between raters. Relation between news and... View Details
Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Disclosure; ESG Ratings; ESG Reporting; ESG Disclosure Metrics; Sustainability; Investments; Disagreement; Rating Disagreement; Ratings; Environmental Sustainability; Social Issues; Corporate Social Responsibility and Impact; Performance; News; Investment; Financial Markets; Stocks; Price
Serafeim, George, and Aaron Yoon. "Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement." Special Issue on RAST 2022 Conference. Review of Accounting Studies 28, no. 3 (September 2023): 1500–1530.
- 2021
- Working Paper
Going by the Book: Valuation Ratios and Stock Returns
By: Ki-Soon Choi, Eric So and Charles C.Y. Wang
We study the use of firms’ book-to-market ratios (B/M) in value investing and its implications for comovements in firms’ stock returns and trading volumes. We show B/M has become increasingly detached from common alternative valuation ratios over time while also... View Details
Choi, Ki-Soon, Eric So, and Charles C.Y. Wang. "Going by the Book: Valuation Ratios and Stock Returns." Harvard Business School Working Paper, No. 21-126, May 2021.
- August 2007 (Revised June 2020)
- Case
Trouble with a Bubble
By: Tom Nicholas
Examines technology, firm performance, and the stock market during the 1929 Great Crash and the Great Depression of the 1930s. The 1920s was an extraordinary period of technological progress marked by a strong run-up in stock market prices. Firms invested heavily in... View Details
Keywords: Bubble; Stock Market; Great Depression; Irving Fisher; Information Technology; Organizational Change and Adaptation; History; Financial Markets; Performance; Labor and Management Relations; Equity; Financial Crisis; Innovation and Invention; United States
Nicholas, Tom. "Trouble with a Bubble." Harvard Business School Case 808-067, August 2007. (Revised June 2020.)
- spring 2008
- Article
Cost Reductions, Cost Padding and Stock Market Prices: The Chilean Experience with Price Cap Regulation
By: Rafael Di Tella and Alexander Dyck
Di Tella, Rafael, and Alexander Dyck. "Cost Reductions, Cost Padding and Stock Market Prices: The Chilean Experience with Price Cap Regulation." Economía 8, no. 2 (spring 2008).
- 2002
- Working Paper
Cost Reductions, Cost Padding and Stock Market Prices: The Chilean Experience with Price Cap Regulation
By: Rafael Di Tella and Alexander Dyck
Di Tella, Rafael, and Alexander Dyck. "Cost Reductions, Cost Padding and Stock Market Prices: The Chilean Experience with Price Cap Regulation." Harvard Business School Working Paper, No. 03-050, October 2002.
- Article
Entry into Platform-based Markets
By: Feng Zhu and Marco Iansiti
This paper examines the relative importance of platform quality, indirect network effects, and consumer expectations on the success of entrants in platform-based markets. We develop a theoretical model and find that an entrant's success depends on the strength of... View Details
Keywords: Platform-based Markets; Winnter-take-all; First-mover Advantage; Indirect Network Effects; Video Game Industry; Quality; Network Effects; Market Entry and Exit; Digital Platforms; Motion Pictures and Video Industry
Zhu, Feng, and Marco Iansiti. "Entry into Platform-based Markets." Strategic Management Journal 33, no. 1 (January 2012): 88–106.
- January 1993 (Revised August 2003)
- Case
Sally Jameson: Valuing Stock Options in a Compensation Package
By: Peter Tufano
Details a thinly disguised situation faced by a recent Harvard MBA graduate who was forced by a prospective employer to place a dollar value on a grant of stock options. There are two objectives: 1) Serves as an introduction to option valuation, in which students have... View Details
Tufano, Peter, and Michael Lewittes. "Sally Jameson: Valuing Stock Options in a Compensation Package." Harvard Business School Case 293-053, January 1993. (Revised August 2003.)
- Article
Variance-Minimizing Monetary Policies with Lagged Price Adjustment and Rational Expectations
By: Jerry R. Green and Seppo Honkapohja
This paper considers a macroeconomic model with rational expectations in which prices are incompletely flexible. Markets therefore fail to clear. In such a model monetary policy is not neutral. The variance of real and nominal quantities and interest rates is sensitive... View Details
Green, Jerry R., and Seppo Honkapohja. "Variance-Minimizing Monetary Policies with Lagged Price Adjustment and Rational Expectations." European Economic Review 20, nos. 1-3 (January 1983): 123–141.
- 11 Jun 2013
- Working Paper Summaries
Measurement Errors of Expected Returns Proxies and the Implied Cost of Capital
Keywords: by Charles C.Y. Wang
- 21 Oct 2022
- Research & Ideas
People Trust Business, But Expect CEOs to Drive Social Change
Public trust in business remains relatively unshaken amid economic turbulence and a lingering pandemic, even as faith in the media and government falters, but leaders could do more to address social issues, a new global opinion survey shows. However, not everyone... View Details
Keywords: by Scott Van Voorhis
- 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.
- December 2004
- Article
Market Valuation and Merger Waves
By: Matthew Rhodes-Kropf and S. Viswanathan
Does valuation affect mergers? Data suggest that periods of stock merger activity are correlated with high market valuations. The naïve explanation that overvalued bidders wish to use stock is incomplete because targets should not be eager to accept stock. However, we... View Details
Keywords: Mergers and Acquisitions; Valuation; Market Transactions; Value; Cash; Stocks; Corporate Social Responsibility and Impact; Bids and Bidding; Market Design; Stock Shares; Accounting Audits; Performance Evaluation
Rhodes-Kropf, Matthew, and S. Viswanathan. "Market Valuation and Merger Waves." Journal of Finance 59, no. 6 (December 2004): 2685–2718.
- February 2011 (Revised June 2011)
- Case
Stock Reform of Shenzhen Development Bank
By: Li Jin, Li Liao, Aldo Sesia and Jianyi Wu
Shenzhen Development Bank, China's first publicly traded company, was undergoing the non-tradable share reform. Its current controlling shareholder, private equity firm Newbridge Capital LLC, needs to negotiate with its diverse minority shareholders to find a... View Details
Keywords: Capital; Private Equity; Investment; Corporate Governance; Managerial Roles; Emerging Markets; Negotiation; Business and Shareholder Relations; Conflict of Interests; Banking Industry; China
Jin, Li, Li Liao, Aldo Sesia, and Jianyi Wu. "Stock Reform of Shenzhen Development Bank." Harvard Business School Case 211-080, February 2011. (Revised June 2011.)
- August 1987 (Revised December 1998)
- Background Note
Capital Market Myopia
Focuses attention on a phenomenon we call capital market myopia, a situation in which participants in the capital markets ignore the logical implications of their individual investment decisions. Viewed in isolation, each decision seems to make sense. When taken... View Details
Keywords: Capital Markets
Sahlman, William A., and Howard H. Stevenson. "Capital Market Myopia." Harvard Business School Background Note 288-005, August 1987. (Revised December 1998.)
- April 2002
- Case
Sally Jameson: Valuing Stock Options in a Compensation Package (Abridged)
By: Peter Tufano
Details a thinly disguised situation facing a recent Harvard MBA graduate who was forced by a prospective employer to place a dollar value on a grant of stock options. There are two objectives: 1) Serves as an introduction to option valuation, in which students have an... View Details
Tufano, Peter. "Sally Jameson: Valuing Stock Options in a Compensation Package (Abridged)." Harvard Business School Case 202-117, April 2002.
- 07 Jun 2019
- Working Paper Summaries
Reflexivity in Credit Markets
- 07 Nov 2007
- Op-Ed
How Marketing Hype Hurt Boeing and Apple
had already bought the iPhone. The moral of the story: Do not risk marketing hype unless you are sure of both your supply curve and your demand curve. Hype can hurt stock prices and investor confidence when... View Details
- March–April 2013
- Article
Expected Firm Altruism, Quality Provision, and Brand Extensions
By: Julio J. Rotemberg
A setting is considered where consumers keep track of the extent to which brands care about them, which is modeled as altruism of brands towards their target consumers. Consumers who purchase an experience good of high quality reasonably deduce that the supplier of... View Details
Rotemberg, Julio J. "Expected Firm Altruism, Quality Provision, and Brand Extensions." Marketing Science 32, no. 2 (March–April 2013): 325–341.
- 28 Oct 2001
- What Do You Think?
What Can We Expect in the Other War?
and one which has at times in the last month had a market value greater than all other major airlines combined, two phenomena that may not be coincidental. Since September 11, however, I have heard countless friends, associates, and... View Details
Keywords: by James Heskett