Publications
Publications
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(11,926)
- Faculty Publications (2,560)
- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings... View Details
- June 2022
- Case
Worten Portugal: Becoming a Digital Marketplace
By: Antonio Moreno, Pedro Amorim and Tonia Labruyere
With Amazon's entry into Portugal, Miguel Mota Freitas, CEO of Portuguese electronics chain Worten, is reflecting on their strategy of building a competitive marketplace. View Details
- May 2022
- Case
Deborah Quazzo at GSV Ventures
By: William A. Sahlman, Michael D. Smith and Nicole Tempest Keller
As COVID-19 swept across the globe in 2020, the education sector faced unprecedented disruption. Schools and colleges worldwide shut down, forcing over a billion students and teachers to move to online learning. Investor interest in the EdTech space exploded as... View Details
- May 2022
- Article
Embracing Field Studies as a Tool for Learning
Field studies in social psychology tend to focus on validating existing insights. In addition to learning from the laboratory and bringing those insights to the field—which researchers currently favour—we should also conduct field studies that aim to learn in the field... View Details
- 2022
- Book
The Digital Mindset: What It Really Takes to Thrive in the Age of Data, Algorithms, and AI
By: Paul Leonardi and Tsedal Neeley
The pressure to "be digital" has never been greater, but you can meet the challenge.
The digital revolution is here, changing how work gets done, how industries are structured, and how people from all walks of life work, behave, and relate to each other. To thrive... View Details
- May 2022
- Article
Variance Analysis: New Insights from Health Care Applications
By: Robert S. Kaplan and Susanna Gallani
We use a health care application to illustrate how variance analysis can be used to benchmark costs across similar service delivery sites. Variances for personnel costs, typically the largest cost component in service organizations, are calculated for price, quantity,... View Details
- 2022
- Working Paper
An Anatomy of Performance Monitoring
By: Achyuta Adhvaryu, Anant Nyshadham and Jorge Tamayo
Performance monitoring is a mainstay management tool in most organizations. Yet we still know little about whether—and why—better monitoring yields better performance in practice. To shed light on these questions, we study the introduction of a performance monitoring... View Details
Keywords: Performance Monitoring; Worker Skills; Skill Depreciation; Managerial Inattention; On-the-job Training; Productivity; Multitasking; Quick Serve Restaurants; Performance Evaluation; Employees; Competency and Skills; Training; Performance Productivity; Management; Information Technology; Food and Beverage Industry; Puerto Rico
- April 2022
- Teaching Note
Tempur Sealy International (A, B & C)
By: Benjamin C. Esty and Daniel Fisher
Teaching Note for HBS Case Nos. 718-422, 718-423, and 718-424. The cases explore the long-term relationship between Tempur Sealy (TPX, a mattress manufacturer) and Mattress Firm (MFRM, a bedding retailer and TPX's largest customer). For almost 20 years, the firms... View Details
Keywords: Porter's 5 Forces; Bargaining Power; Buyer Power; Customer Power; Supplier Power; Negotiations; Value Capture; Private Equity; Consumer Durables; Consumer Discretionary; Mattresses; B-2-B; Industry Dynamics; Leadership; Compensation; Corporate Strategy; Business Strategy; Value Creation; Competition; Cooperation; Distribution; Negotiation; Industry Structures; Customers; Relationships; Retail Industry; Retail Industry; Retail Industry; Retail Industry; United States; South Africa
- April 2022
- Teaching Note
CVS Health: Prescription for Transformation
By: Rosabeth Moss Kanter and Catarina Martinez
In 2021, new CEO Karen Lynch (named the most powerful woman in business) considered the next transformation phase for CVS Health (a Fortune 5 corporate giant). The 2018 acquisition of Aetna insurance brought her to the company as part of its long evolution from a... View Details
- April 2022 (Revised August 2022)
- Case
Restaurant Brands International: Version 2.0
By: Boris Groysberg and Sarah L. Abbott
In 2010, 3G Capital acquired Burger King, the second largest burger chain globally. 3G expanded Burger King’s operations via acquisitions into a multi-brand business, renamed Restaurant Brands International. The acquisition had been a financial success story for 3G.... View Details
- April 2022
- Case
Connecting Students in Chattanooga (A)
By: Jan W. Rivkin and Manjari Raman
As COVID-19 hit and school buildings closed across America in the spring of 2020, tens of thousands of K-12 students in Chattanooga’s Hamilton County lacked the high-quality Internet service required to connect them to remote education. Bryan Johnson, superintendent... View Details
- April 2022
- Supplement
Connecting Students in Chattanooga (B)
By: Jan W. Rivkin and Manjari Raman
- March 2022 (Revised January 2025)
- Technical Note
Prediction & Machine Learning
This note provides an introduction to machine learning for an introductory data science course. The note begins with a description of supervised, unsupervised, and reinforcement learning. Then, the note provides a brief explanation of the difference between traditional... View Details
- March 2022
- Case
GrowSari (A): Design for the Last Mile Customer
By: Brian Trelstad, Cam Carag and Michi Ferreol
Reymund (ER) Rollan and Shivapratim (Shiv) Choudhury, founders of the digital technology platform GrowSari, were at a crossroads. The feedback from their initial product roll-out were not what they had expected, and they needed to decide how to proceed. The pair,... View Details
- March 2022
- Supplement
GrowSari (B)
By: Brian Trelstad, Cam Carag and Michi Ferreol
Case supplement for HBS Case No. 322-036. Reymund (ER) Rollan and Shivapratim (Shiv) Choudhury, founders of the digital technology platform GrowSari, were at a crossroads. The feedback from their initial product roll-out were not what they had expected, and they needed... View Details
- March 2022
- Case
The Goldman Sachs 10,000 Small Businesses Program: 2009-2021
By: Leonard A. Schlesinger and Julia Kelley
In December 2021, more than a decade after its founding, Goldman Sachs’s 10,000 Small Businesses program was still going strong — and the firm now needed to evaluate potential program modifications to reach a wider group of small business owners. Launched in the... View Details
Keywords: COVID-19 Pandemic; Small Business; Business Education; Curriculum and Courses; Government and Politics; Knowledge; Knowledge Dissemination; Labor; Employment; Human Capital; Management; Goals and Objectives; Organizations; Mission and Purpose; Corporate Social Responsibility and Impact; Programs; Networks; Social Enterprise; Society; Strategy; Demographics; Diversity; Financial Services Industry; North and Central America; United States; New York (city, NY); New York (state, US)
- March 2022
- Case
Unilever: Remote Work in Manufacturing
By: Prithwiraj Choudhury and Susie L. Ma
In December 2021, Unilever—one of the world’s largest producers of consumer goods—was in the midst of a pilot project to digitize its manufacturing facilities and enable remote work for factory employees. This was possible because of an earlier project to retrofit a... View Details
- March 2022 (Revised February 2024)
- Case
Emeritus: Achieving Impact, Providing Access (A)
By: Ashish Nanda and Zack Kurtovich
In June 2019, Emeritus cofounders Ashwin Damera (HBS MBA 2005) and Chaitanya Kalipatnapu were thrilled with the rapid growth of Emeritus. Damera and Kalipatnapu believed that Emeritus, established in July 2015 to offer online executive education, was only in the early... View Details
- March 2022 (Revised February 2023)
- Case
Sunōmi Switchel: Time to Switch?
By: Lindsay N. Hyde, Shani Carter McKinney and Alexandra Horvitz
Nicole Blank has bootstrapped her functional beverage company, Sunōmi Switchel, to contracts with leading grocery retailers. She is now faced with a series of choices for if and how to continue to grow the business. View Details
- March 2022
- Case
Talent@Tencent
By: Tarun Khanna, Shu Lin and Nancy Hua Dai
On November 11, 2016, Xi Dan, Senior Vice President of Tencent, and Ma Yongwu, Dean of Tencent Academy, were discussing how Tencent could develop new capabilities to sustain its growth miracle and entry into new technologies, expansion into B2B businesses, and... View Details