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- 13 Jul 2017
- Working Paper Summaries
Catering Through Disclosure: Evidence from Shanghai-Hong Kong Connect
Keywords: by Aaron S. Yoon
- 09 Mar 2021
- Working Paper Summaries
Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement
- 09 Aug 2016
- Working Paper Summaries
Shareholder Activism on Sustainability Issues
- 24 Mar 2015
- Working Paper Summaries
Corporate Sustainability: First Evidence on Materiality
- 10 Jan 2017
- News
The Risk And Opportunity For America's Corporate Pension Plans
- 18 Jul 2018
- Research & Ideas
No More General Tso's? A Threat to 'Knowledge Recombination'
Turmeric is prepared into medicine. Doucefleur In the early 1990s, an Indian plastic surgeon at the University of Mississippi, S. K. Das, was about to amputate the leg of a patient because of a wound that wouldn’t heal. Colleague Hari P.... View Details
- 11 Sep 2019
- Research & Ideas
Germany May Have the Answer for Reducing Drug Prices
has been studying health care innovation for more than a decade, conducted her most recent research alongside Aaron S. Kesselheim and Ameet Sarpatwari from the Program on Regulation, Therapeutics, and Law at... View Details
- 23 Apr 2019
- First Look
New Research and Ideas, April 23, 2019
process of learning from experience. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=55991 forthcoming Organization & Environment Assessing the Impact of CEO Activism By: Chatterji, Aaron K., and Michael W. Toffel... View Details
Keywords: Dina Gerdeman
- 14 Nov 2017
- First Look
New Research and Ideas: November 14, 2017
experts to discuss how researchers can impact a broader audience, by lending their scientific expertise to pressing social issues, current events, and public debates. The landmark Brown v. Board of Education case, in which the Supreme... View Details
Keywords: Carmen Nobel
- Web
Strategy - Doctoral
first year typically by working with a faculty member. By their third and fourth years, most students are launched on a solid research and publication stream. The dissertation may take the form of three... View Details
- Web
Organizational Behavior - Doctoral
field and advancing theoretical understanding in posts at schools of management or in disciplinary departments. The Organizational Behavior program is jointly administered by the faculty of Harvard Business School and the Department of... View Details
- 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.
- Web
Connect with Clubs - Recruiting
Hire Talent Connect with Clubs Hire Talent Connect with Clubs Partner with a HBS Student Club Reach targeted groups of students by connecting with over 50 career-related student clubs. Work with club leaders to sponsor events, advertise... View Details
- November 2016
- Article
Corporate Sustainability: First Evidence on Materiality
By: Mozaffar Khan, George Serafeim and Aaron Yoon
Using newly available materiality classifications of sustainability topics, we develop a novel dataset by hand-mapping sustainability investments classified as material for each industry into firm-specific sustainability ratings. This allows us to present new evidence... View Details
Keywords: Sustainability; Investments; Corporate Social Responsibility; Accounting; Corporate Reporting; Regulation; Corporate Social Responsibility and Impact; Integrated Corporate Reporting; Investment; Corporate Governance
Khan, Mozaffar, George Serafeim, and Aaron Yoon. "Corporate Sustainability: First Evidence on Materiality." Accounting Review 91, no. 6 (November 2016): 1697–1724.
- 09 Nov 2010
- First Look
First Look: November 9, 2010
PublicationsDid Increased Competition Affect Credit Ratings? Authors:Bo Becker and Todd Milbourn Publication:Journal of Financial Economics (forthcoming) Abstract The credit rating industry has historically been dominated by just two... View Details
Keywords: Sean Silverthorne
- 2022
- Article
Which Corporate ESG News Does the Market React To?
By: George Serafeim and Aaron Yoon
Using a dataset that classifies firm-level ESG news as positive and negative, we examine how stock prices react to different types of ESG news. We analyze 111,020 firm-day observations for 3,126 companies and find that prices react only to issues identified as... View Details
Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Capital; Environment; Sustainability; CSR; Stock Price; Stock Market Expectations; Materiality; Market Reaction; Environmental Sustainability; Governance; Social Issues; Performance; News
Serafeim, George, and Aaron Yoon. "Which Corporate ESG News Does the Market React To?" Financial Analysts Journal 78, no. 1 (2022): 59–78.
- 2022
- Working Paper
The Evolution of ESG Reports and the Role of Voluntary Standards
By: Ethan Rouen, Kunal Sachdeva and Aaron Yoon
We examine the evolution of ESG reports of S&P 500 firms from 2010 to 2021. The
percentage of firms releasing these voluntary disclosures increased from 35% to 86%
during this period, although the length of these documents experienced more modest
growth. Using a... View Details
Keywords: Voluntary Disclosure; Textual Analysis; Modeling And Analysis; Corporate Social Responsibility and Impact; AI and Machine Learning; Accounting
Rouen, Ethan, Kunal Sachdeva, and Aaron Yoon. "The Evolution of ESG Reports and the Role of Voluntary Standards." Harvard Business School Working Paper, No. 23-024, October 2022.
- Web
Accounting & Management Awards & Honors - Faculty & Research
Albert Shin and Charles C.Y. Wang. Ethan C. Rouen : Winner of the 2024 Best Paper Award at the Fox and Haskayne Accounting Conference for "Sustainability Meets Substance: Evaluating ESG Reports in the Context of 10-Ks and Firm Performance” with Kunal Sachdeva and View Details
- 2017
- Working Paper
Private and Public Disclosures in Countries with Weak Institutional Environments: Evidence from Shanghai-Hong Kong Connect
By: Aaron Yoon
I study firms’ use of disclosure to build investor confidence when they operate in a market where the institutions that support the supply of credible information are weak. Using the announcement of a regulation that allowed foreigners to invest in select Shanghai... View Details
Yoon, Aaron. "Private and Public Disclosures in Countries with Weak Institutional Environments: Evidence from Shanghai-Hong Kong Connect." Harvard Business School Working Paper, No. 17-111, June 2017.