Publications
Publications
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- All HBS Web
(3,162)
- Faculty Publications (597)
- 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
- April 2021
- Case
Distinct Software
By: Das Narayandas, Arijit Sengupta and Jonathan Wray
Distinct Software (disguised name), a global enterprise software company, is at an important point in its growth trajectory where the luster of its mantra of “grow and win at any cost” has dimmed with increasing competition and margin pressures. To help navigate its... View Details
- April 22, 2021
- Article
Shareholders Are Pressing for Climate Risk Disclosures. That's Good for Everyone
By: Caroline Flammer, Michael W. Toffel and Kala Viswanathan
Does shareholder activism induce firms to voluntarily disclose climate change risks? And how do markets respond to these disclosures? New research finds that the extent of climate-risk disclosure increases by approximately 4.6% for each environment-related proposal... View Details
- April 2021
- Case
Transforming BlackBerry: From Smartphones to Software
By: Ranjay Gulati and Nicole Tempest Keller
On the verge of failure, BlackBerry brought in John Chen as CEO in 2013 to orchestrate a bold turnaround of the company. Once an iconic leader in the smartphone market, BlackBerry was best known for its tactile QWERTY keyboard, strong security, and a focus on business... View Details
Keywords: Pivot; Managing Change; Turnaround; Smartphone; Change Management; Leading Change; Transformation; Organizational Change and Adaptation; Digital Platforms; Change; Information Infrastructure; Applications and Software; Competitive Strategy; Cybersecurity; Technology Industry; Transportation Industry; Canada
- April 2021 (Revised July 2021)
- Case
StockX: The Stock Market of Things (Abridged)
By: Chiara Farronato, John J. Horton, Annelena Lobb and Julia Kelley
Founded in 2015 by Dan Gilbert, Josh Luber, and Greg Schwartz, StockX was an online platform where users could buy and sell unworn luxury and limited-edition sneakers. Sneaker resale prices often fluctuated over time based on supply and demand, creating a robust... View Details
Keywords: Markets; Auctions; Bids and Bidding; Demand and Consumers; Consumer Behavior; Analytics and Data Science; Market Design; Digital Platforms; Market Transactions; Marketplace Matching; Supply and Industry; Analysis; Price; Product Marketing; Product Launch; Apparel and Accessories Industry; Fashion Industry; North and Central America; United States; Michigan; Detroit
- January–February 2021
- Article
Cross‐firm Return Predictability and Accounting Quality
By: Wen Chen, Mozaffar Khan, Leonid Kogan and George Serafeim
We test the hypothesis that if poor accounting quality (AQ) is associated with poor investor understanding of firms’ revenue and cost structures, then poor AQ stocks likely respond more slowly than good AQ stocks to new non‐idiosyncratic information that affects both... View Details
- 2021
- Working Paper
Connecting Expected Stock Returns to Accounting Valuation Multiples: A Primer
By: Akash Chattopadhyay, Matthew R. Lyle and Charles C.Y. Wang
We outline a framework in which accounting “valuation anchors" could be connected to expected stock returns. Under two general conditions, expected log returns is a log-linear function of a valuation (market value-to-accounting) multiple and the expected growth in the... View Details
Keywords: Expected Returns; Present Value; Investment Return; Accounting; Valuation; Information; Framework
- January 2021 (Revised October 2021)
- Case
eToro: Building the World's Largest Social Trading Network
By: Elie Ofek and Danielle Golan
Social trading platform eToro was preparing for the launch of its expanded offering in the U.S. The company faced critical decisions regarding product-market fit, go-to-market strategy, positioning and monetization. Moreover, it faced the challenge of how best to make... View Details
- 2021
- Article
Consumer Disclosure
By: Tami Kim, Kate Barasz and Leslie John
As technological advances enable consumers to share more information in unprecedented ways, today’s disclosure takes on a variety of new forms, triggering a paradigm shift in what “disclosure” entails. This review introduces two factors to conceptualize consumer... View Details
- January 2021
- Article
Turbulence, Firm Decentralization and Growth in Bad Times
By: Philippe Aghion, Nicholas Bloom, Brian Lucking, Raffaella Sadun and John Van Reenen
What is the optimal form of firm organization during “bad times”? We present a model of delegation within the firm to show that the effect is ambiguous. The greater turbulence following macro shocks may benefit decentralized firms because the value of local information... View Details
- December 2020 (Revised April 2021)
- Case
Arcos Dorados: A QSR Recovery Plan
By: Forest Reinhardt, José B. Alvarez, Jenyfeer Martinez Buitrago and Mariana Cal
Arcos Dorados—McDonald’s largest independent franchisee, covering Latin America and the Caribbean (LAC)—faced a pandemic that was disrupting the entire consumer foodservice business in 2020. With the exclusive right to own, operate, and sub-franchise McDonald’s... View Details
Keywords: Agribusiness; Animal-Based Agribusiness; Plant-Based Agribusiness; Customer Value and Value Chain; Income; Macroeconomics; Environmental Management; Environmental Sustainability; Cross-Cultural and Cross-Border Issues; Food; Health Pandemics; Crisis Management; Logistics; Corporate Social Responsibility and Impact; Strategic Planning; Food and Beverage Industry; Agriculture and Agribusiness Industry; Retail Industry; Latin America; Aruba; Guadeloupe; Martinique; Mexico; Panama; Costa Rica; Argentina; Brazil; Chile; Colombia; Ecuador; French Guiana; Peru; Uruguay; Venezuela; Puerto Rico; Trinidad and Tobago
- Article
The Unprecedented Stock Market Reaction to COVID-19
By: Scott Baker, Nicholas Bloom, Steven J. Davis, Kyle Kost, Marco Sammon and Tasaneeya Viratyosin
No previous infectious disease outbreak, including the Spanish Flu, has impacted the stock market as forcefully as the COVID-19 pandemic. In fact, previous pandemics left only mild traces on the U.S. stock market. We use text-based methods to develop these points with... View Details
- November 2020 (Revised September 2021)
- Case
HP Instant Ink: (Self) Disrupting the Consumer Printing Market
By: Elie Ofek, Marco Bertini, Oded Koenigsberg and George Gonzalez
Seeking to disrupt the consumer printing market (before being disrupted by others), and in response to customer pain points, in 2013 HP Inc. launched an ink replenishment service called Instant Ink, where customers pay a monthly subscription fee based on the number of... View Details
- 2022
- Working Paper
The Stock Market Value of Human Capital Creation
By: Matthias Regier and Ethan Rouen
We develop a measure of firm-year-specific human capital investment from publicly disclosed personnel expenses (PE) and examine the stock market valuation of this investment. Measuring the future value of PE (PEFV) based on the relation between lagged... View Details
- Oct 2020
- Conference Presentation
Optimal, Truthful, and Private Securities Lending
By: Emily Diana, Michael J. Kearns, Seth Neel and Aaron Leon Roth
We consider a fundamental dynamic allocation problem motivated by the problem of securities lending in financial markets, the mechanism underlying the short selling of stocks. A lender would like to distribute a finite number of identical copies of some scarce resource... View Details
- September 2020 (Revised May 2024)
- Case
Hot Wheels: Launching The Mixed Play Experience
By: Elie Ofek, Andres Terech and Nicole Tempest Keller
Chris Down, Global Brand General Manager for Hot Wheels, and his team from the Advanced Play Group within Mattel, Inc., had developed an entirely new “mixed play” product experience that blended familiar Hot Wheels play in the physical world with breakthrough play in... View Details
- September 2020 (Revised November 2020)
- Case
d.light
By: Michael Chu, Krishna G. Palepu and Dilyana Karadzhova Botha
Kenyan off-grid-solar pioneer d.light can power entire homes in rural Africa but must now decide how to fund the growth of its asset-heavy business model. Ned Tozun and Sam Goldman founded d.light in 2006 to transform lives through solar solutions enabling access to... View Details
- September–October 2020
- Article
Managing Churn to Maximize Profits
By: Aurelie Lemmens and Sunil Gupta
Customer defection threatens many industries, prompting companies to deploy targeted, proactive customer retention programs and offers. A conventional approach has been to target customers either based on their predicted churn probability or their responsiveness to a... View Details
- August 2020 (Revised December 2020)
- Case
Latam Airlines and COVID-19: Seeking Bankruptcy Protection in the United States
By: Laura Alfaro, Mauricio Larrain, Carlos Vilches and Sarah Jeong
On May 26, 2020, Latam Airlines became the largest airline in the world to be driven to bankruptcy by COVID-19. With a complex debt structure and international investor composition, the company decided to file for bankruptcy protection in the United States, which... View Details
- August 2020 (Revised March 2021)
- Supplement
Migros Turkey: Scaling Online Operations (B)
By: Antonio Moreno and Gamze Yucaoglu
The case opens in February 2020 as Ozgur Tort and Mustafa Bartin, CEO and chief large-format and online retail officer of Migros Ticaret A.S. (Migros), Turkey’s oldest and one of its largest supermarket chains, are looking over the results of the fulfillment pilot the... View Details