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Show Results For
- All HBS Web
(1,568)
- People (2)
- News (304)
- Research (1,133)
- Events (5)
- Multimedia (9)
- Faculty Publications (564)
- 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.
- August 2003 (Revised July 2004)
- Case
Marketing at The Vanguard Group
By: John A. Quelch and Carin-Isabel Knoop
Senior executives at Vanguard are evaluating their marketing strategy. In particular, they are looking at their approach to market segmentation, the organization of the marketing function, and the weight placed on marketing metrics in the corporate dashboard in light... View Details
Quelch, John A., and Carin-Isabel Knoop. "Marketing at The Vanguard Group." Harvard Business School Case 504-001, August 2003. (Revised July 2004.)
- 09 Jul 2013
- News
Can Zynga’s New CEO Turn The Stock Around?
- 16 Feb 2017
- News
Saudi Stock Exchange Picks First Female Chair
- February 2013 (Revised June 2013)
- Case
BTG Pactual: Preserving a Partnership Culture
By: Paul Healy
Keywords: Stock Market; IPO; Corporate Lending; Initial Public Offering; Investment Banking; Banking Industry; Brazil
Healy, Paul. "BTG Pactual: Preserving a Partnership Culture." Harvard Business School Case 113-094, February 2013. (Revised June 2013.)
- May 2008
- Article
Excess Comovement of Stock Returns: Evidence from Cross-sectional Variation in Nikkei 225 Weights
By: Robin Greenwood
In the presence of limits to arbitrage, cross-sectional variation in periodic investor demand should be related to the degree of comovement of returns. I exploit the unusual weighting system of the Nikkei 225 index in Japan to identify cross-sectional variation in... View Details
Keywords: Stocks; Investment; Investment Return; Market Transactions; Weight; Performance Expectations; Behavior; Japan
Greenwood, Robin. "Excess Comovement of Stock Returns: Evidence from Cross-sectional Variation in Nikkei 225 Weights." Review of Financial Studies 21, no. 3 (May 2008): 1153–1186.
- Article
Recovering Investor Expectations from Demand for Index Funds
By: Mark Egan, Alexander J. MacKay and Hanbin Yang
We use a revealed-preference approach to estimate investor expectations of stock market returns. Using data on demand for index funds that follow the S&P 500, we develop and estimate a model of investor choice to flexibly recover the time-varying distribution of... View Details
Keywords: Stock Market Expectations; Demand Estimation; Exchange-traded Funds (ETFs); Demand and Consumers; Investment
Egan, Mark, Alexander J. MacKay, and Hanbin Yang. "Recovering Investor Expectations from Demand for Index Funds." Review of Economic Studies 89, no. 5 (October 2022): 2559–2599.
- 2021
- Working Paper
Recovering Investor Expectations from Demand for Index Funds
By: Mark Egan, Alexander J. MacKay and Hanbin Yang
We use a revealed-preference approach to estimate investor expectations of stock market returns. Using data on demand for index funds that follow the S&P 500, we develop and estimate a model of investor choice to flexibly recover the time-varying distribution of... View Details
Keywords: Stock Market Expectations; Demand Estimation; Exchange-traded Funds (ETFs); Demand and Consumers; Investment; United States
Egan, Mark, Alexander J. MacKay, and Hanbin Yang. "Recovering Investor Expectations from Demand for Index Funds." NBER Working Paper Series, No. 26608, January 2020. (Accepted at the Review of Economic Studies. Harvard Business School Working Paper, No. 20-122, May 2020. Direct download. Revised July 2021.)
- 2008
- Article
Governance and Merger Accounting: Evidence from Stock Price Reactions to Purchase versus Pooling
By: Francisco de Asis Martinez-Jerez
This paper examines the effect of corporate governance on investor reactions to accounting choice in the context of accounting for business combinations. Using a sample of 324 recent stock swap acquisitions I find that, contrary to practitioners' belief that capital... View Details
Keywords: Financial Reporting; Financial Statements; Mergers and Acquisitions; Capital Markets; Stocks; Price; Corporate Governance
Martinez-Jerez, Francisco de Asis. "Governance and Merger Accounting: Evidence from Stock Price Reactions to Purchase versus Pooling." Art. 1. European Accounting Review 17, no. 1 (2008): 5–35. (Lead Article.)
- 1993
- Chapter
The Adjustment of Stock Prices to New Information
By: Eugene F. Fama, Lawrence Fisher, Michael C. Jensen and Richard J. Roll
Fama, Eugene F., Lawrence Fisher, Michael C. Jensen, and Richard J. Roll. "The Adjustment of Stock Prices to New Information." In Strategic Issues in Finance, edited by Keith Wand. Butterworth-Heinemann, 1993. (Previously published in International Economic Review, Vol. 10 (Feb. 1969) and Investment Management: Some Readings, J. Lorie and R. Brealey, Eds (Praeger Publishers, 1972))
- June 2021 (Revised November 2021)
- Case
Asian Corporate Governance Association: Stemming a 'Race to the Bottom' by Stock Exchanges?
By: Charles C.Y. Wang and Billy Chan
This case describes the movement towards dual-class listings on Asian stock exchanges and the efforts of the Asian Corporate Governance Association (ACGA), a not-for-profit shareholder advocacy group, to discourage this trend. As a not-for-profit organization with no... View Details
Keywords: Corporate Governance; Governance Controls; Nonprofit Organizations; Stocks; Financial Markets; Financial Services Industry; Hong Kong; China; Asia
Wang, Charles C.Y., and Billy Chan. "Asian Corporate Governance Association: Stemming a 'Race to the Bottom' by Stock Exchanges?" Harvard Business School Case 121-073, June 2021. (Revised November 2021.)
- Research Summary
Effective Capital Market Communications
Hutton's most recent research and cases examine how managers enhance the credibility and effectiveness of their financial reports and voluntary disclosures. Her most recent working paper, "Effective Voluntary Disclosure" (co-authored with Greg Miller, HBS, and Douglas... View Details
- 2012
- Article
Mutual Fund Trading Pressure: Firm-Level Stock Price Impact and Timing of SEOs
By: Mozaffar N. Khan, Leonid Kogan and George Serafeim
In tests of the equity market timing theory of external finance, the prior literature has used overvaluation identifiers such as high market-to-book and high prior returns that are likely correlated with other determinants of SEOs. We use price pressure resulting from... View Details
Keywords: Equity; Market Transactions; Valuation; Capital Structure; Market Timing; Mathematical Methods; Acquisition
Khan, Mozaffar N., Leonid Kogan, and George Serafeim. "Mutual Fund Trading Pressure: Firm-Level Stock Price Impact and Timing of SEOs." Journal of Finance 67, no. 4 (August 2012): 1371–1395.
- 06 Dec 2021
- Research & Ideas
The Popular Stock Metric That Can Lead Investors Astray
stock market is overvalued and may experience some volatility as the economy continues to recover, Wang’s research suggests that investors may be relying too heavily on a formerly tried-and-true tool that... View Details
Keywords: by Rachel Layne
- 25 Aug 2020
- News
He's Seen It Before
When Do Stocks and Bonds Move Together, and Why Does it Matter?
The co-movement of Treasury bonds and stocks is an important indicator for both policy makers and for long-term investors. A positive co-movement between nominal Treasury bonds and stocks, as in the 1980s, means that nominal bonds amplify the volatility of stock... View Details
- 25 Aug 2022
- News
Open Market
don’t think we know all the ripples yet. What I do know is that Robinhood customers are upending this industry. That makes a lot of people who are considered the old mainstays of the stock market very... View Details
- October 2007
- Article
Supply and Demand Shifts in the Shorting Market
By: Lauren Cohen, Karl B. Diether and Christopher J. Malloy
Using proprietary data on stock loan fees and quantities from a large institutional investor, we examine the link between the shorting market and stock prices. Employing a unique identification strategy, we isolate shifts in the supply and demand for shorting. We find... View Details
Keywords: Analytics and Data Science; Stocks; Financing and Loans; Price; Strategy; Demand and Consumers; Forecasting and Prediction; Investment Return; Markets; Information
Cohen, Lauren, Karl B. Diether, and Christopher J. Malloy. "Supply and Demand Shifts in the Shorting Market." Journal of Finance 62, no. 5 (October 2007): 2061–2096. (Winner of Smith Breeden Prize for the Best Paper Published in the Journal of Finance in Asset Pricing (Distinguished Paper) 2007.)
- January 2017
- Article
Being Surprised by the Unsurprising: Earnings Seasonality and Stock Returns
By: Tom Y. Chang, Samuel M. Hartzmark, David H. Solomon and Eugene F. Soltes
We present evidence consistent with markets failing to properly price information in seasonal earnings patterns. Firms with historically larger earnings in one quarter of the year (“positive seasonality quarters”) have higher returns when those earnings are usually... View Details
Chang, Tom Y., Samuel M. Hartzmark, David H. Solomon, and Eugene F. Soltes. "Being Surprised by the Unsurprising: Earnings Seasonality and Stock Returns." Review of Financial Studies 30, no. 1 (January 2017): 281–323.
- 19 Feb 2007
- Research & Ideas
Inexperienced Investors and Market Bubbles
joining a bubble. In the recent paper, "Inexperienced Investors and Bubbles," Harvard Business School's Robin Greenwood and Stanford's Stefan Nagel compared the returns of young and older mutual fund managers during and after the technology View Details