Publications
Publications
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- All HBS Web
(2,754)
- Faculty Publications (639)
- July 2022 (Revised February 2024)
- Teaching Note
The DivaCup: Navigating Distribution and Growth
By: Ayelet Israeli
Teaching Note for HBS Case No. 519-055. When the mother-daughter founders of DivaCup set out with a mission to disrupt the menstrual care industry with an innovative product form, they initially struggled to gain legitimacy and convince retailers to carry their unique... View Details
Keywords: Female; Female Ceo; Female Entrepreneur; Female Protagonist; Health ＆ Wellness; Healthcare; Price Policies; Minimum Advertised Price; Differentiation; Positioning; Growth; Health; Health Care and Treatment; Price; Disruption; Distribution; Distribution Channels; Competitive Strategy; Competition; Growth Management; Mission and Purpose; Product Development; Product Marketing; Product Launch; Product Positioning; Advertising; Business Startups; Internet and the Web; Entrepreneurship; Social Entrepreneurship; Social Issues; Social Enterprise; Retail Industry; Medical Devices and Supplies Industry; Manufacturing Industry; Health Industry; Green Technology Industry; Education Industry; Distribution Industry; Consumer Products Industry; Canada; United States; United Kingdom
- June 2022
- Article
The Welfare Effects of Peer Entry in the Accommodation Market: The Case of Airbnb and the Accommodation Industry
By: Chiara Farronato and Andrey Fradkin
We study the effects of enabling peer supply through Airbnb in the accommodation industry. We present a model of competition between flexible and dedicated sellers—peer hosts and hotels—who provide differentiated products. We estimate this model using data from major... View Details
- May 2022 (Revised June 2024)
- Case
LOOP: Driving Change in Auto Insurance Pricing
By: Elie Ofek and Alicia Dadlani
John Henry and Carey Anne Nadeau, co-founders and co-CEOs of LOOP, an insurtech startup based in Austin, Texas, were on a mission to modernize the archaic $250 billion automobile insurance market. They sought to create equitably priced insurance by eliminating pricing... View Details
- April 6, 2022
- Article
In Uncertain Times, Big Companies Need to Take Care of Their Suppliers
By: Willy C. Shih
Many large original equipment manufacturers (OEMs) have long been ruthless with their suppliers, demanding extremely low prices and loading them up with risks. Given that the current turmoil buffeting global supply chains is unlikely to end anytime soon, OEMs should... View Details
- March 2022 (Revised July 2022)
- Teaching Note
Camera IQ and the Metaverse: Building Augmented Reality Brand Experiences
By: Jill Avery
Camera IQ, a camera marketing software company that empowered brands to create and launch augmented reality experiences (AREs) across social platforms, had just raised an additional $5 million to fund further product development and expand its marketing and sales... View Details
Keywords: Brand Management; Virtual Reality; Augmented Reality; B2B; E-commerce; Technology Platform; Marketing; Marketing Communications; Marketing Strategy; Brands and Branding; Digital Marketing; Internet and the Web; Growth Management; Customer Relationship Management; Customer Value and Value Chain; Social Media; Applications and Software; Digital Platforms; Advertising Industry; United States
- March 2022 (Revised March 2024)
- Case
Hometown Foods: Changing Price amid Inflation
During the early part of the 2021 Covid-19 pandemic, Hometown Foods, a large seller of flour-based products, thrived as consumers hoarded baked goods and took up baking to pass the time and find comfort. Then, amid growing shortages in commodities, a vaccine arrived,... View Details
- March 2022 (Revised April 2022)
- Case
MTN: Unlocking Value While Driving Socioeconomic Progress
By: Benjamin C. Esty, Pippa Tubman Armerding and Dilyana Karadzhova Botha
On March 10, 2021, Ralph Mupita the new CEO of MTN Group, Africa's largest telecommunications company, presented the group’s 2020 annual results and unveiled a new strategy to “drive growth and unlock value.” Despite MTN’s leadership in most of its markets, the... View Details
- 2022
- Working Paper
Stock Market Stimulus
By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler
We study the stock market effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to Hong Kong citizens. The first two rounds of U.S. checks appear to have increased retail buying and share prices of... View Details
Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong; China
- March 2022
- Teaching Note
Farfetch: Digital Transformation for Luxury Brands
By: Jill Avery and Sunil Gupta
Teaching Note for HBS Case No. 522-051. Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had... View Details
- 2022
- Article
Which Corporate ESG News Does the Market React To?
By: George Serafeim and Aaron Yoon
Using a dataset that classifies firm-level ESG news as positive and negative, we examine how stock prices react to different types of ESG news. We analyze 111,020 firm-day observations for 3,126 companies and find that prices react only to issues identified as... View Details
- 2024
- Working Paper
What Triggers National Stock Market Jumps?
By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
- January 2022 (Revised February 2022)
- Case
Introducing EVA at ISS: A Better Way to Evaluate CEO Performance and Compensation?
By: Jonas Heese, Charles C.Y. Wang and James Weber
In early 2019, Anthony Campagna, the global director of fundamental research at ISS EVA, a unit of the proxy advisory firm Institutional Shareholder Services (ISS), was preparing to release ISS's analyses of public company performance and CEO compensation ahead of Say... View Details
- January 2022
- Article
Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems
By: David R. Clough and Andy Wu
Gregory, Henfridsson, Kaganer, and Kyriakou (2020) highlight the important role of data and AI as strategic resources that platforms may use to enhance user value. However, their article overlooks a significant conceptual distinction: the installed base of... View Details
Keywords: Artificial Intelligence; Data Strategy; Ecosystem; Value Capture; Digital Platforms; Analytics and Data Science; Strategy; Learning; Value Creation; AI and Machine Learning; Information Technology Industry; Information Technology Industry; Information Technology Industry; Information Technology Industry
- 2022
- Working Paper
Heterogeneous Investors and Stock Market Fluctuations
By: Odhrain McCarthy and Sebastian Hillenbrand
We introduce a heterogeneous agent model which features extrapolative beliefs and time-varying risk aversion. The model leads to an empirical framework which we estimate with stock prices, survey data and risk aversion measures. We find that extrapolative beliefs and... View Details
- December 2021 (Revised May 2025)
- Case
Bed Bath & Beyond: The New Strategy to Drive Shareholder Value
By: Benjamin C. Esty and Daniel W. Fisher
At one time, Bed Bath & Beyond was one of the most successful specialty retailers in the United States—its growth and profit margins far exceeded both peer retailers in the home goods market as well as many other discount retailers. But in 2014, its stock price peaked,... View Details
- Winter 2021
- Article
Mobile Internet Usage and Usage-based Pricing
By: Jeffrey Prince and Shane Greenstein
Using data on mobile Internet usage of thousands of individuals, we provide some of the first analyses linking mobile usage to key demographics such as income. We find a reverse-U relationship between mobile Internet usage and income—notably different than the... View Details
- December 2021
- Article
Trade Policy Uncertainty and Stock Returns
By: Marcelo Bianconi, Federico Esposito and Marco Sammon
A recent literature has documented large real effects of trade policy uncertainty (TPU) on trade, employment, and investment, but there is little evidence that investors are compensated for bearing such risk. To quantify the risk premium associated with TPU, we exploit... View Details
- 2024
- Working Paper
What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences
By: Mark Egan, Alexander MacKay and Hanbin Yang
We present an empirical model of portfolio choice that allows for the nonparametric estimation of investors' (subjective) expectations and risk preferences. Utilizing a comprehensive dataset of 401(k) plans from 2009 through 2019, we explore heterogeneity in asset... View Details
- 2024
- Working Paper
Omnia Juncta in Uno: Foreign Powers and Trademark Protection in Shanghai's Concession Era
By: Laura Alfaro, Cathy Bao, Maggie X. Chen, Junjie Hong and Claudia Steinwender
We investigate how firms and markets adapt to trademark protection, an extensively utilized but under-examined form of IP protection to address asymmetric information, by exploring a historical precedent: China’s 1923 trademark law. Exploiting unique, newly digitized... View Details
- November 2021 (Revised December 2022)
- Case
Farfetch: Digital Transformation for Luxury Brands
By: Sunil Gupta, Jill Avery, Elena Corsi and Federica Gabrieli
Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had fluctuated since its IPO in 2018, it had... View Details
Keywords: Digital Marketing; Marketplaces; Retailing; Internet Marketing; E-Commerce Strategy; Marketing; Marketing Strategy; Marketing Channels; Brands and Branding; Luxury; Growth and Development Strategy; Digital Transformation; E-commerce; Apparel and Accessories Industry; Beauty and Cosmetics Industry; Fashion Industry; Retail Industry; Web Services Industry; Technology Industry; United Kingdom; Europe; Portugal; China