Publications
Publications
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- All HBS Web
(1,014)
- Faculty Publications (127)
- 2 Sep 2021
- Interview
Amy Edmondson
By: Amy C. Edmondson and Deepak Jayaraman
Amy C. Edmondson is the Novartis Professor of Leadership and Management at the Harvard Business School.
Amy has been recognized by the biannual Thinkers50 global ranking of management thinkers since 2011, and most recently was ranked #3 in 2019. She studies teaming,... View Details
- September 2021
- Article
Perceptions on Undertaking Regular Asymptomatic Self-testing for COVID-19 Using Lateral Flow Tests: A Qualitative Study of University Students and Staff
By: Marta Wanat, Mary Logan, Jennifer A. Hirst, Charles Vicary, Joseph J. Lee, Rafael Perera, Irene Tracey, Gordon Duff, Peter Tufano, Thomas Fanshawe, Lazaro Mwandigha, Brian D. Nicholson, Sarah Tonkin-Crine and Richard Hobbs
Objectives: Successful implementation of asymptomatic testing programmes using lateral flow tests (LFTs) depends on several factors, including feasibility, acceptability and how people act on test results. We aimed to examine experiences of university students... View Details
- 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
- May 2021 (Revised September 2021)
- Case
Accounting for Bitcoin at Tesla
By: Charles C.Y. Wang and Siyu Zhang
On February 8, 2021, Tesla revealed, through its 10-K filing to the Securities and Exchange Commission (SEC), that it had purchased $1.5 billion of Bitcoin, totaling 7.5% of the company’s cash, and that it planned to accept payments in the cryptocurrency soon. These... View Details
- 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
- 2020
- Working Paper
Is Accounting Useful for Forecasting GDP Growth? A Machine Learning Perspective
We provide a comprehensive examination of whether, to what extent, and which accounting variables are useful for improving the predictive accuracy of GDP growth forecasts. We leverage statistical models that accommodate a broad set of (341) variables—outnumbering the... View Details
- April 2021
- Article
Evaluating Firm-Level Expected-Return Proxies: Implications for Estimating Treatment Effects
By: Charles M.C. Lee, Eric C. So and Charles C.Y. Wang
We introduce a parsimonious framework for choosing among alternative expected-return proxies (ERPs) when estimating treatment effects. By comparing ERPs’ measurement-error variances in the cross section and in time series, we provide new evidence on the relative... View Details
- 2021
- Working Paper
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the... View Details
- February 2021
- Case
Measuring Impact at JUST Capital
By: Charles C.Y. Wang and Ethan Rouen
JUST Capital is a nonprofit organization that seeks to make public companies more "just" by measuring and ranking their overall impact on society, based on the priorities most important to the average American. This case examines JUST's strategy for influencing... View Details
- 2021
- Article
The Sustainable Corporate Governance Initiative in Europe
By: Mark Roe, Holger Spamann, Jesse M. Fried and Charles C.Y. Wang
In July 2020, the European Commission published the “Study on directors’ duties and sustainable corporate governance” by EY. The Report purports to find evidence of debilitating short-termism in EU corporate governance and recommends many changes to support sustainable... View Details
- Article
The EU's Unsustainable Approach to Stakeholder Capitalism
By: Jesse M. Fried and Charles C.Y. Wang
A recent report by the EU claims that investor-driven short-termism is encouraging firms to return cash rather than invest it, which reduces capital available for investment in growth. The authors show that the data behind the report do not support its claims and... View Details
- September 3, 2020
- Article
How to Measure a Company's Real Impact
By: Ronald Cohen and George Serafeim
Impact transparency will reshape capitalism. By shifting the pursuit of profit away from negligently creating problems to purposefully creating valuable solutions for the world, it will redefine success, so that its measure is not just money, but the positive impact we... View Details
Keywords: Impact; Impact Investing; Impact Measurement; Impact Investment; Impact Investment Funds; Accountability; Accounting Information; Corporate Performance; Sustainability; Social Impact; Capitalism; Accounting; Corporate Accountability; Performance; Measurement and Metrics; Social Enterprise; Society
- August 2020
- Supplement
Luckin Coffee (B): Revelations of Fraud
By: Ramon Casadesus-Masanell and Karen Elterman
This case describes revelations of fraud at Luckin Coffee, beginning with an anonymous report in January 2020 and continuing with the company’s admission in April 2020 that it had inflated its revenues by 2.2 billion RMB ($310 million), almost half its reported... View Details
- 2020
- Working Paper
Best Ideas
By: Miguel Antón, Randolph B. Cohen and Christopher Polk
We find that the stocks in which active mutual fund or hedge fund managers display the most conviction towards ex-ante, their “Best ideas,” outperform the market, as well as the other stocks in those managers’ portfolios, by approximately 2.8 to 4.5 percent per year,... View Details
- Article
The Inpatient Discharge Lounge as a Potential Mechanism to Mitigate Emergency Department Boarding and Crowding
By: Brian Franklin, Sharif Vakili, Robert S. Huckman, Sarah Hosein, Nicholas Falk, Katherine Cheng, Maria Murray, Sheila Harris, Charles A. Morris and Eric Goralnick
Delayed access to inpatient beds for admitted patients contributes significantly to emergency department (ED) boarding and crowding, which have been associated with deleterious patient safety effects. To expedite inpatient bed availability, some hospitals have... View Details
- May 2020
- Teaching Note
Talismark
By: Richard S. Ruback, Royce Yudkoff and Ahron Rosenfeld
Teaching Note for HBS Case No. 211-097. Talismark negotiated waste hauling contracts for small and medium size companies. Its owners, Charles Muszynski and Marshall Staiman, were able to grow the business by more than 30% per year since it was founded, but believed... View Details
- March 2020 (Revised March 2024)
- Case
CIAM: Home-Grown Shareholder Activism in France
By: Charles C.Y. Wang, Tonia Labruyere and Vincent Dessain
The case discusses the strategy of CIAM, a French activist investment firm, involved in a case of a buy-out of minority shareholders in the telecommunications sector. Altice NV, an international telecommunications company based in the Netherlands that owned more than... View Details
- March 2020
- Article
Governance Through Shame and Aspiration: Index Creation and Corporate Behavior
By: Akash Chattopadhyay, Matthew D. Shaffer and Charles C.Y. Wang
After decades of deprioritizing shareholders' economic interests and low corporate profitability, Japan introduced the JPX-Nikkei400 in 2014. The index highlighted the country's "best-run" companies by annually selecting the 400 most profitable of its large and liquid... View Details
- August 2019
- Case
Simón Cohen at Henco: Sustaining 'High Performance, Happy People'
By: Francesca Gino, Jeff Steiner, Arianna Camacho and Paul Green
Simón Cohen—Founder of Henco Logistics—transformed a small Mexican logistics company into a major player within the industry. Cohen credits the firm’s focus on employee happiness as the key ingredient to its success, an approach he developed following a personal... View Details
Keywords: Work/life Balance; Growth Strategy; Corporate Culture; Motivation; Values; Authentic Leadership Development; Leadership; Personal Development and Career; Motivation and Incentives; Values and Beliefs; Service Operations; Organizational Culture; Growth and Development Strategy; Service Industry
- May 2019 (Revised May 2020)
- Case
fidentiaX: The Tradable Insurance Marketplace on Blockchain
By: Alexander Braun, Lauren H. Cohen and Jiahua Xu
Three years ago, Alvin Ang and his partner founded fidentiaX in Singapore, with the ambition to create the world’s first marketplace for tradable insurance policies on blockchain. With a 26-page white paper, the start-up closed a successful fundraising round through an... View Details