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May 25, 2026
Podcast: Why Wall Street Slowed Its Roll on Sustainability
A few years ago, the stock market was wild about green tech and ESG funds. And then it wasn’t. We look at why in the third episode of “Insight Unpacked: Can We Still Build a Green Economy?”
Aaron Yoon and David Chen
January 1, 2026
Why It’s So Hard to Battle Corporate Debt with Policy
A 2017 tax bill reduced the amount of loan interest that companies could write off. It barely made a dent on borrowing.
Edward L. Maydew, Matthew A. Phillips and Zirui Song
September 1, 2025
Big Goals, Small Steps—Why Most Corporate Green Initiatives Fall Short
Despite making commitments to cut emissions, many companies are acting in the short term and underfunding projects.
Catrina Achilles, Peter Limbach, Michael Wolff and Aaron Yoon
July 1, 2025
Investment Transparency Encourages Copycats—and Creates Risks
While regulations nudge insurance companies toward prudent portfolios, they may also increase systemic fragility.
Tom Hagenberg
February 1, 2025
When Businesses Square Off with “Superstar” Competitors
A corporate behemoth like Apple or Amazon entering a new market is generally bad news for other firms in the space. But not always.
Stephanie Cheng, Dushyantkumar Vyas, Regina Wittenberg Moerman and Wuyang Zhao
October 30, 2024
Take 5: Doing Business in a Warming Climate
What should leaders understand about sustainability? A collection of the latest research and ideas from Kellogg faculty.
Jacopo Ponticelli, Aaron Yoon, Brayden King, Adam Waytz and Meghan Busse
October 1, 2024
Guilty as Charged—Unless the Judge Went to Your School
For firms facing securities litigation, their executives’ alma mater could mean the difference between innocence and guilt.
Sterling Huang, Sugata Roychowdhury, Ewa Sletten and Yanping Xu
April 1, 2024
Do Green Bonds Actually Lead to Rosy Returns?
And are the companies that issue them truly addressing climate issues? New research investigates.
Aaron Yoon and Sanjai Bhagat
February 5, 2024
Podcast: The Complicated Promise of ESG
On this episode of The Insightful Leader: Are companies as socially responsible as they claim? And how much should investors care?
Aaron Yoon
January 23, 2024
ESG Risks Can Lurk in Supply Chains, Too
Most companies know little of their suppliers’ ESG practices. But negative incidents can sway stock prices—and investors should take note.
Xuanpu Lin, Guoman She, Aaron Yoon and Haoran Zhu
September 5, 2023
The More Investors Know, the More Executives Disclose
CEOs are likelier to volunteer bad news when the public better understands their personal motives for maximizing short-term stock prices.
Jung Min Kim
August 10, 2023
Take 5: Not So Fast!
A little patience can lead to better ideas, stronger organizations, and more-ethical conduct at work.
Swaminathan Sridharan, Daniel Barron, Michael Powell, Loran Nordgren and Benjamin F. Jones
January 17, 2023
What Is the Purpose of a Corporation Today?
Has anything changed in the three years since the Business Roundtable declared firms should prioritize more than shareholders?
Aaron Yoon, Ravi Jagannathan, Carola Frydman, Robert Korajczyk and José Maria Liberti
January 1, 2023
Who Does a Better Job with ESG ratings, Global or Local Research Firms?
Sometimes, global raters miss important nuances about a firm’s environmental, social, and governmental activities.
Jeff Chen, Zengquan Li, Ting Mao and Aaron Yoon
December 20, 2022
5 Takeaways on the State of ESG Investing
ESG investing is hot. But what does it actually deliver for society and for shareholders?
Aaron Yoon
November 18, 2022
What Went Wrong with FTX—and What’s Next for Crypto?
One key issue will be introducing regulation without strangling innovation, a fintech expert explains.
Sarit Markovich
November 1, 2022
Investors Are Eager for Accurate ESG Information. Can Financial Analysts Provide It?
Analysts aren’t traditionally steeped in ESG, but they do have deep knowledge of the companies they cover.
Min Pak, Aaron Yoon and Tzachi Zach
January 4, 2022
Take 5: What Good Does It Do a Company to Do Good?
Kellogg faculty look at how ESG initiatives are received by investors, customers, and employees.
Aaron Yoon, Ravi Jagannathan, Jacob D. Teeny, Alexander Chernev, Brayden King and and coauthors
August 2, 2021
Does Positive ESG News Help a Company’s Stock Price?
A comprehensive new study finds that investors reward some—but not all—efforts.
George Serafeim and Aaron Yoon
March 25, 2021
How Useful Are ESG Ratings for Sustainable Investors?
These ratings are proliferating. Now there may be a better way to assess them.
George Serafeim and Aaron Yoon
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The Insightful Leader
June 5, 2026 · 31:32 minutes
May 21, 2026 · 32:33 minutes
