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- August 5, 2025
- Article
Data-driven Equation Discovery Reveals Nonlinear Reinforcement Learning in Humans
By: Kyle J. LaFollette, Janni Yuval, Roey Schurr, David Melnikoff and Amit Goldenberg
Computational models of reinforcement learning (RL) have significantly contributed to our understanding of human behavior and decision-making. Traditional RL models, however, often adopt a linear approach to updating reward expectations, potentially oversimplifying the... View Details
- July–August 2025
- Article
Case Study: Do We Reskill or Replace Our Workforce?
By: William Kerr
To remain competitive in the internet-of-things era, should the CEO of SolidTech Innovations, a fictional elevator company, invest a lot of money in reskilling its entire staff? The industry is moving from hardware to software in the form of smart, connected elevators.... View Details
- 2025
- Book
Concise Business Guide to Climate Change: What Managers, Executives, and Students Need to Know
Understanding the ground rules of climate change for business.
Climate has changed the game for businesses around the world. With climate-related disasters costing billions in damages and public pressure rising, over a hundred nations joined... View Details
Climate has changed the game for businesses around the world. With climate-related disasters costing billions in damages and public pressure rising, over a hundred nations joined... View Details
- August 1, 2025
- Article
When to Innovate and When to Imitate
By: Felipe A. Csaszar, Rebecca Karp and Maria Roche
Innovation is often the gold standard for firms looking to grow profits and become leaders in their industries. But given the steep cost of failure, is a relentless pursuit of innovation always advisable? Or might there be some instances when imitation may be a better... View Details
- July 2025
- Case
ICARE: Frontline Leadership at Michelin
By: Hubert Joly and Emilie Billaud
In 2025, Michelin CEO Florent Menegaux reflected on the company’s transformation since taking the helm in 2019. Amid a volatile global landscape marked by inflation, rising competition, and geopolitical and sustainability pressures, Michelin had achieved strong... View Details
Keywords: Human Capital; Transformation; Management Practices and Processes; Managerial Roles; Organizational Culture; Leadership; Competency and Skills; Global Strategy; Multinational Firms and Management; Human Resources; Compensation and Benefits; Recruitment; Retention; Employee Relationship Management; Working Conditions; Leading Change; Growth and Development Strategy; Groups and Teams; Motivation and Incentives; Well-being; Auto Industry; Manufacturing Industry; Europe; China; United States
- 2025
- Working Paper
Rethinking Volume
By: Philippe van der Beck, Lorenzo Bretscher and Zhiyu Julie Fu
Gross trading volumes in financial markets are large and far exceed return volatility. In contrast, “net volume”—trading from persistent portfolio reallocations—is substantially lower, as it excludes transitory round-trip trades. This observation reveals a fundamental... View Details
- 2025
- Chapter
An Appraisal on 'Teaching the Early History of IB at Harvard Business School'
By: Geoffrey Jones
This chapter reviews new research about the origins of International Business as an academic discipline. Contrary to conventional wisdom that it originated in economics departments in the 1960s, this research highlights the importance of teaching at Harvard Business... View Details
- June 2025
- Case
The Value of Art on Campus as a Vision for Educating Leaders Who Make a Difference
By: James Riley, Alexis Lefort and Helen Yap
This case explores the debate surrounding the installation of a large contemporary sculpture, Inés by Jaume Plensa, at Harvard Business School under the leadership of Dean Nitin Nohria. Set in 2016, the case examines the role of physical campus design and public art in... View Details
- 2025
- Working Paper
Heterogeneous Beliefs and Stock Market Fluctuations
By: Odhrain McCarthy and Sebastian Hillenbrand
This paper examines the role of heterogeneous investor beliefs in explaining stock market puzzles. Using survey data, we show that individual investors and investment professionals, such as equity analysts and strategists, form distinct beliefs. These groups rely on... View Details
- 2025
- Working Paper
Cash Flow Volatility, Return Predictability and Stock Price Decompositions: Why You Should Scale Prices by Trend Cash Flows
By: Sebastian Hillenbrand and Odhrain McCarthy
We address two inconvenient facts in asset pricing: (i) valuation ratios are often more related to future cash flows than to returns, and (ii) they mostly fail to predict returns. We show that these issues arise because stock prices are scaled by cash flows that... View Details
- June 2025
- Case
TagHive: Edtech Pricing and Distributor Decisions
By: Isamar Troncoso, Frank V. Cespedes and Stacy Straaberg
Education technology (edtech) company TagHive, founded in 2017, used a direct sales team and third-party distributors to sell its Class Saathi hardware and software solution to 300 clients, mainly primary and secondary schools in India. The product aimed to improve... View Details
Keywords: Business Model; Marketing Channels; Marketing Strategy; Product Marketing; Social Marketing; Information Infrastructure; Internet and the Web; Mobile and Wireless Technology; Technology Adoption; Teaching; Price; Customer Relationship Management; Customer Satisfaction; Growth and Development; Technological Innovation; AI and Machine Learning; Applications and Software; Distribution Channels; Sales; Reputation; Education Industry; Education Industry; India; South Korea
- 2025
- Working Paper
Street Earnings: Implications for Asset Pricing
By: Sebastian Hillenbrand and Odhrain McCarthy
To address the excess volatility puzzle – the excessive movements in stock prices – researchers often study movements in valuation ratios. However, we demonstrate that movements in valuation ratios based on fundamental measures with high transitory volatility, such as... View Details
- 2025
- Chapter
Commentary on 'Tracing the Early History of IB Teaching at Harvard Business School' by Teresa da Silva Lopes
By: Louis T. Wells
The Comments follow the evolution of International Business (IB) at Harvard Business School (HBS) after the IB Area was disbanded in 1973. Several IB faculty were relocated to a course on the economic and political environment of business. HBS dropped its doctoral... View Details
- 2025
- Working Paper
An Empirical Examination of Business Climate Alliances: Effective and/or Harmful?
By: Matteo Gasparini and Peter Tufano
This research studies business alliances that seek to address climate change, offering empirical evidence to address claims advanced by alliance supporters and critics. We study eleven major alliances mostly focused on financial services firms and 424 major... View Details
Keywords: Antitrust; Climate Change; Financial Institutions; Competition; Network Effects; Alliances
- Working Paper
Index Rebalancing and Stock Market Composition: Do Indexes Time the Market?
By: Marco Sammon and John J. Shim
Value-weighted indexes must rebalance in response to stock market composition changes, e.g., issuance, buybacks, and IPOs. In doing so, existing index funds implicitly engage in market timing. Index funds’ long-short rebalancing portfolios have a -3.5% annual return... View Details
- May 2025
- Case
IQanat: Empowering Rural Youth in Kazakhstan
By: Boris Groysberg and Maxim Pike Harrell
In June 2025, IQanat CEO Aliya Salikova considered scaling opportunities for the foundation, which provided educational opportunities for children from rural regions of Kazakhstan. Established by Kazakhstani businessman and philanthropist Aidyn Rakhimbayev, IQanat... View Details
- 2025
- Working Paper
Who Ends Up at Jobs in Impact Investing?
By: Shawn Cole, Marcus Sander and Jonah Zahnd
As the impact investing industry has grown, so too has students’ desire to find employment in jobs tasked with the dual mandate of creating financial and social or environmental returns. There is to date relatively little information available on employment in the... View Details
- 2025
- Chapter
Marjorie Yang Mun Tak 楊梅德：Entrepreneur and Innovator
By: William C. Kirby
BOOK ABSTRACT:
Chinese Encounters with America tells the stories of twelve women and men whose American experiences transformed their lives and influenced China’s trajectory, with a particular focus on the period after Beijing and Washington established... View Details
Chinese Encounters with America tells the stories of twelve women and men whose American experiences transformed their lives and influenced China’s trajectory, with a particular focus on the period after Beijing and Washington established... View Details
- 2025
- Working Paper
Race, Rental Yields, and Housing Decay in Manhattan
By: Tom Nicholas and Christophe Spaenjers
We develop a new dataset on real estate transactions in Manhattan (1912–1939), linked to federal Census records (1930 and 1940) and property images used for tax assessment purposes (around 1940 and 1980). We analyze investor returns and incentives to maintain... View Details
- May 2025
- Article
Workplace Segregation Between College and Non-college Workers
By: Francis Dillon, Edward L. Glaeser and William Kerr
We measure the level and growth of education segregation in American workplaces from 2000 to 2020.
American workplaces show an educational segregation, measured by the degree to which the establishment
has mostly workers of similar education levels, that is... View Details