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- November 2021
- Article
Ratings, Reviews, and the Marketing of New Products
By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek
We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new... View Details
- November 2021
- Article
Venture Capitalists and COVID-19
By: Paul A. Gompers, Will Gornall, Steven N. Kaplan and Ilya A. Strebulaev
We survey over 1,000 institutional and corporate venture capitalists (VCs) at more than 900 different firms to learn how their decisions and investments have been affected by the COVID-19 pandemic. We compare their survey answers to those provided by a large sample of... View Details
- Article
Decarbonization Factors
By: Alex Cheema-Fox, Bridget LaPerla, George Serafeim, David Turkington and Hui (Stacie) Wang
In the face of accelerating climate change, investors are making capital allocations seeking to decarbonize portfolios by reducing the carbon emissions of their holdings. To understand the performance of portfolio decarbonization strategies and investor behavior... View Details
- Article
Health Equity, Schooling Hesitancy, and the Social Determinants of Learning
By: Meira Levinson, Alan C. Geller, Joseph G. Allen and John D. Macomber
At least 62 million K-12 students in North America—disproportionately low-income children of color— have been physically out of school for over a year due to the COVID-19 pandemic. These children are at risk of significant academic, social, mental, and physical harm... View Details
- October 2021
- Article
Overcoming the Cold Start Problem of CRM Using a Probabilistic Machine Learning Approach
By: Nicolas Padilla and Eva Ascarza
The success of Customer Relationship Management (CRM) programs ultimately depends on the firm's ability to understand consumers' preferences and precisely capture how these preferences may differ across customers. Only by understanding customer heterogeneity, firms can... View Details
- September 2021
- Background Note
DuPont Decomposition of Return on Equity
By: Charles C.Y. Wang and Kaden Chien
- August 2021
- Supplement
Aligning Mission and Margin at Southern Bancorp
By: Brian Trelstad
Video Supplement for HBS Case No. 321-099. In October 2020, after spending almost a decade to turnaround Southern Bancorp, an Arkansan bank founded with the mission to provide financial services to rural, underserved communities, CEO Darrin Williams is wondering how... View Details
- July 2021
- Teaching Plan
Aligning Mission and Margin at Southern Bancorp
By: Rebecca Henderson, Brian Trelstad and Eren Kuzucu
Teaching Plan for HBS Case No. 321-099. In October 2020, after spending almost a decade to turnaround Southern Bancorp, an Arkansan bank founded with the mission to provide financial services to rural, underserved communities, CEO Darrin Williams is wondering how... View Details
- 2021
- Article
Decarbonizing Everything
By: Alex Cheema-Fox, Bridget LaPerla, George Serafeim, David Turkington and Hui (Stacie) Wang
We analyze how the use of different climate risk measures leads to different portfolio carbon outcomes and risk-adjusted returns. Our findings are synthesized in a rules-based investment framework, which selects a different type of climate metric across industries and... View Details
Keywords: Climate Risk; ESG; ESG (Environmental, Social, Governance) Performance; ESG Disclosure; ESG Disclosure Metrics; ESG Ratings; Investing; Investing For Impact; Investment Strategy; Environment; Decarbonization; Climate Change; Environmental Sustainability; Environmental Management; Environmental Accounting; Investment; Strategy; Investment Portfolio; Investment Return
- June 2021
- Case
Modern Endowment Management: Paula Volent and the Bowdoin Endowment
By: Luis M. Viceira, Emily R. McComb and Dean Xu
This case examines modern endowment investment management through the lens of a leadership transition between Chief Investment Officers (CIOs). In March 2021, Paula Volent is about to step down as the CIO of the endowment of Bowdoin College after twenty-one years, and... View Details
- June 23, 2021
- Article
Biden Is Rushing America's Return to Normalcy
- June 23, 2021
- Article
Research: When A/B Testing Doesn't Tell You the Whole Story
By: Eva Ascarza
When it comes to churn prevention, marketers traditionally start by identifying which customers are most likely to churn, and then running A/B tests to determine whether a proposed retention intervention will be effective at retaining those high-risk customers. While... View Details
Keywords: Customer Retention; Churn; Targeting; Market Research; Marketing; Investment Return; Customers; Retention; Research
- 2021
- Working Paper
Studying the U.S.-Based Portfolio Companies of U.S. Impact Investors
By: M. Diane Burton, Gurveen Chadha, Shawn A. Cole, Abhishek Dev, Christina Jarymowycz, Leslie Jeng, Laura Kelley, Josh Lerner, Jaime R. Diaz Palacios, Yue (Cynthia) Xu and T. Robert Zochowski
Recent years have seen a dramatic increase in the reliance on market-based solutions to social and environmental problems around the world (Barman 2016; Horvath and Powell 2020). The growth of impact investing is a vivid example of this trend and, although there have... View Details
- June 2021 (Revised December 2021)
- Case
The Lunar Gateway, Moon vs. Mars, and the Political Governance of Space Activities
By: Matthew C. Weinzierl and Mehak Sarang
In 2017, the Trump Administration made a bold claim—that they would return the next man and the first woman to the lunar surface by 2024, this time to establish a sustainable presence to enable further exploration in the solar system. With the Artemis Program, NASA has... View Details
Keywords: Space; Space Economy; Aerospace; Nasa; Governance; Policy; International Relations; Infrastructure
- June 2021
- Article
Short-Termism, Shareholder Payouts, and Investment in the EU
By: Jesse M. Fried and Charles C.Y. Wang
Investor-driven "short-termism" is said to harm EU public firms' ability to invest for the long term, prompting calls for the EU to better insulate managers from shareholder pressure. But the evidence offered—rising levels of repurchases and dividends—is incomplete and... View Details
- July–August 2021
- Article
Why You Aren't Getting More from Your Marketing AI
By: Eva Ascarza, Michael Ross and Bruce G.S. Hardie
Fewer than 40% of companies that invest in AI see gains from it, usually because of one or more of these errors: (1) They don’t ask the right question, and end up directing AI to solve the wrong problem. (2) They don’t recognize the differences between the value of... View Details
- May 2021
- Teaching Plan
Gera Developments: Leadership at a Crossroads
By: Christina R. Wing and John Masko
Teaching Plan for HBS Case No. 621-018. For decades, Gera Developments (Gera) was a boutique family-owned real estate development firm in Pune, India. But since 2000, managing director Rohit Gera had turned the company into a dynamic innovator in housing solutions for... View Details
Keywords: Buildings and Facilities; Business Growth and Maturation; Construction; Geographic Location; Global Strategy; Globalized Firms and Management; Housing; Leadership Style; Management Succession; Organizational Change and Adaptation; Organizational Culture; Family Ownership; Family and Family Relationships; Urban Development; Customization and Personalization; Real Estate Industry; Maharashtra; India; San Francisco
- May 2021 (Revised September 2021)
- Case
CPE and SUS Environmental: You've Got to Know When to Hold 'Em (A)
By: Josh Lerner and Franko Jira
In July 2016, Di Yang and Grace Guo of the leading Chinese private equity group CPE faced a dilemma—a happy dilemma, but a challenge nonetheless. CPE’s investment in the waste-to-energy firm SUS Environment had proved to be exceedingly successful. This success had... 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
- May 2021
- Article
Private and Social Returns to R&D: Drug Development and Demographics
By: Efraim Benmelech, Janice Eberly, Dimitris Papanikolaou and Joshua Krieger
Investment in intangible capital such as R&D has increased dramatically since the 1990s. However, productivity growth remains sluggish in recent years. One potential reason is that a significant share of the increase in intangible investment is geared toward consumer... View Details