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All HBS Web
(1,058)
- Faculty Publications (292)
- November 2020
- Article
Casting Conference Calls
By: Lauren Cohen, Dong Lou and Christopher J. Malloy
We explore a subtle but important mechanism through which firms can control information flow to the markets. We find that firms that “cast” their conference calls by disproportionately calling on bullish analysts tend to underperform in the future. Firms that call on...
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Cohen, Lauren, Dong Lou, and Christopher J. Malloy. "Casting Conference Calls." Management Science 66, no. 11 (November 2020): 5015–5039. (Winner of the First Prize, Crowell Memorial Award for Best Paper in Quantitative Investments, PanAgora Asset Management, 2014.)
- 2020
- Working Paper
Revenue Collapses and the Consumption of Small Business Owners in the Early Stages of the COVID-19 Pandemic
By: Olivia S. Kim, Jonathan A. Parker and Antoinette Schoar
Using detailed transaction-level data from financial accounts, this paper shows that the revenues of small businesses and the consumption spending of their owners both decline by roughly 40% following the declaration of the national emergency in March 2020. However,...
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Kim, Olivia S., Jonathan A. Parker, and Antoinette Schoar. "Revenue Collapses and the Consumption of Small Business Owners in the Early Stages of the COVID-19 Pandemic." NBER Working Paper Series, No. 28151, November 2022.
- 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...
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Diana, Emily, Michael J. Kearns, Seth Neel, and Aaron Leon Roth. "Optimal, Truthful, and Private Securities Lending." Paper presented at the 1st Association for Computing Machinery (ACM) International Conference on AI in Finance (ICAIF), October 2020.
- September 2020
- Case
Walmart Health: Scaling During a Pandemic
By: Robert S. Huckman, Yoonjin Min and Marissa Thiel
Amidst the onset of COVID-19 pandemic in the United States, Marcus Obsborne, Vice President for Health and Wellness Transformation at Walmart was planning to scale its new health care clinic business, Walmart Health, to additional locations in Georgia and beyond....
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Keywords:
Health Care and Treatment;
Health Pandemics;
Health;
Service Delivery;
Growth and Development Strategy;
Health Industry;
United States;
Arkansas;
Georgia (state, US);
Texas
Huckman, Robert S., Yoonjin Min, and Marissa Thiel. "Walmart Health: Scaling During a Pandemic." Harvard Business School Case 621-061, September 2020.
- August 2020 (Revised February 2021)
- Case
Luckin Coffee (A): Caffeine-fueled Growth?
By: Ramon Casadesus-Masanell and Karen Elterman
This case describes the founding of Chinese coffee chain Luckin Coffee in 2017 and its path to surpassing Starbucks as the largest coffee chain in China (by number of stores) in 2019. Unlike Starbucks stores, which were designed to be welcoming “third places” for...
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Keywords:
Business Model;
Business Earnings;
Cost;
Cost Management;
Financial Statements;
Financial Condition;
Financial Management;
Stocks;
Profit;
Revenue;
Price;
Food;
Business History;
Employment;
Brands and Branding;
Product Positioning;
Marketing Strategy;
Business Strategy;
Expansion;
Competitive Strategy;
Food and Beverage Industry;
Technology Industry;
Asia;
China
Casadesus-Masanell, Ramon, and Karen Elterman. "Luckin Coffee (A): Caffeine-fueled Growth?" Harvard Business School Case 721-370, August 2020. (Revised February 2021.)
- Article
Assessing the Food and Drug Administration's Risk-Based Framework for Software Precertification with Top Health Apps in the United States: Quality Improvement Study
By: Noy Alon, Ariel Dora Stern and John Torous
BACKGROUND: As the development of mobile health apps continues to accelerate, the need to implement a framework that can standardize categorizing these apps to allow for efficient, yet robust regulation grows. However, regulators and researchers are faced with numerous...
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Keywords:
Mobile Health;
Smartphone;
Food And Drug Administration;
Risk-based Framework;
Health Care and Treatment;
Mobile and Wireless Technology;
Applications and Software;
Framework
Alon, Noy, Ariel Dora Stern, and John Torous. "Assessing the Food and Drug Administration's Risk-Based Framework for Software Precertification with Top Health Apps in the United States: Quality Improvement Study." JMIR mHealth and uHealth 8, no. 10 (October 2020).
- Article
Oracle Efficient Private Non-Convex Optimization
By: Seth Neel, Aaron Leon Roth, Giuseppe Vietri and Zhiwei Steven Wu
One of the most effective algorithms for differentially private learning and optimization is objective perturbation. This technique augments a given optimization problem (e.g. deriving from an ERM problem) with a random linear term, and then exactly solves it....
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Neel, Seth, Aaron Leon Roth, Giuseppe Vietri, and Zhiwei Steven Wu. "Oracle Efficient Private Non-Convex Optimization." Proceedings of the International Conference on Machine Learning (ICML) 37th (2020).
- 2020
- Working Paper
EMEs and COVID-19: Shutting Down in a World of Informal and Tiny Firms
By: Laura Alfaro, Oscar Becerra and Marcela Eslava
Emerging economies are characterized by an extremely high prevalence of informality, small-firm employment and jobs not fit for working from home. These features factor into how the COVID-19 crisis has affected the economy. We develop a framework that, based on...
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Keywords:
COVID-19;
Emerging Economies;
Informality;
Firm-size Distribution;
Health Pandemics;
Developing Countries and Economies;
Economy;
System Shocks;
Latin America
Alfaro, Laura, Oscar Becerra, and Marcela Eslava. "EMEs and COVID-19: Shutting Down in a World of Informal and Tiny Firms." Harvard Business School Working Paper, No. 20-125, June 2020. (See application of the methodology to Latin American Countries in the IMF Regional Economic Outlook: Western Hemisphere 2020, Chapter 3. https://www.imf.org/en/Publications/REO/WH/Issues/2020/10/13/regional-economic-outlook-western-hemisphere.)
- Article
Are Cost Advantages from a Modern Indian Hospital Transferable to the United States?
By: R. S. Kaplan, F. Erhun, V.G. Narayanan, B. Mistry and K. Brayton, et al
We use time-driven activity-based costing to estimate the cost of personnel and space for an elective coronary artery bypass graft (CABG) surgery at two U.S. hospitals, Intermountain and Baylor Heart, and Narayana Health (NH), in India. All three hospitals use modern...
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Keywords:
Time-Driven Activity-Based Costing;
Health Care and Treatment;
Cost;
Organizational Structure;
Performance Efficiency;
India;
United States
Kaplan, R. S., F. Erhun, V.G. Narayanan, B. Mistry, and K. Brayton, et al. "Are Cost Advantages from a Modern Indian Hospital Transferable to the United States?" American Heart Journal 224 (June 2020): 148–155.
- Article
Development of a Deep Learning Algorithm for Periapical Disease Detection in Dental Radiographs
By: Michael G. Endres, Florian Hillen, Marios Salloumis, Ahmad R. Sedaghat, Stefan M. Niehues, Olivia Quatela, Henning Hanken, Ralf Smeets, Benedicta Beck-Broichsitter, Carsten Rendenbach, Karim R. Lakhani, Max Helland and Robert A. Gaudin
Periapical radiolucencies, which can be detected on panoramic radiographs, are one of the most common radiographic findings in dentistry and have a differential diagnosis including infections, granuloma, cysts, and tumors. In this study, we seek to investigate the...
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Keywords:
Artificial Intelligence;
Diagnosis;
Computer-assisted;
Image Interpretation;
Machine Learning;
Radiography;
Panoramic Radiograph;
AI and Machine Learning
Endres, Michael G., Florian Hillen, Marios Salloumis, Ahmad R. Sedaghat, Stefan M. Niehues, Olivia Quatela, Henning Hanken, Ralf Smeets, Benedicta Beck-Broichsitter, Carsten Rendenbach, Karim R. Lakhani, Max Helland, and Robert A. Gaudin. "Development of a Deep Learning Algorithm for Periapical Disease Detection in Dental Radiographs." Diagnostics 10, no. 6 (June 2020).
- 2020
- Article
Why Do User Communities Matter for Strategy?
By: Sonali K. Shah and Frank Nagle
In this essay, we explore how strategic management research and practice could benefit from considering the benefits and challenges obtainable through working with user communities. User communities represent a unique organizing structure for the exchange of ideas and...
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Keywords:
User Communities;
Innovation;
Open Source;
Collaboration;
Cooperative Strategy;
Knowledge Sharing;
Strategy;
Collaborative Innovation and Invention
Shah, Sonali K., and Frank Nagle. "Why Do User Communities Matter for Strategy?" Special Issue on Open Innovation. Strategic Management Review 1, no. 2 (2020): 305–353.
- 2023
- Working Paper
Founder-CEO Compensation and Selection into Venture Capital-Backed Entrepreneurship
By: Michael Ewens, Ramana Nanda and Christopher Stanton
We show theoretically that a critical determinant of the attractiveness of VC-backed entrepreneurship for high-earning potential founders is the expected time to develop a startup’s initial product. This is because founder-CEOs’ cash compensation increases...
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Ewens, Michael, Ramana Nanda, and Christopher Stanton. "Founder-CEO Compensation and Selection into Venture Capital-Backed Entrepreneurship." Harvard Business School Working Paper, No. 20-119, May 2020. (Revised September 2023. Forthcoming at Journal of Finance.)
- May 2020 (Revised October 2020)
- Teaching Note
The Marriott-Starwood Merger: Navigating Brand Portfolio Strategy and Brand Architecture
By: Jill Avery and Chekitan S. Dev
In September 2016, Marriott completed its $13.3 billion acquisition of Starwood Hotels & Resorts, which added 11 brands to its already robust 19 hotel brand portfolio. Tina Edmundson, Marriott’s global brand officer, was charged with making sense of the brand portfolio...
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- May–June 2020
- Article
The New-Market Conundrum
By: Rory McDonald and Kathleen M. Eisenhardt
Brand-new markets are like the wormholes of science fiction, where the usual rules of time and space do not apply. When a market has just been born, the forces of competition there are constantly in flux, it’s unclear who your customers really are, and conventional...
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Keywords:
New Markets;
Markets;
Business Model;
Strategy;
Framework;
Innovation and Invention;
Value Creation
McDonald, Rory, and Kathleen M. Eisenhardt. "The New-Market Conundrum." Harvard Business Review 98, no. 3 (May–June 2020): 75–83.
- April 2020
- Teaching Note
Tailor Brands: Artificial Intelligence-Driven Branding
By: Jill Avery
Using proprietary artificial intelligence technology, startup Tailor Brands set out to democratize branding by allowing small businesses to create their brand identities by automatically generating logos in just minutes at minimal cost with no branding or design skills...
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- April 2020 (Revised November 2020)
- Case
Ping An: Pioneering the New Model of ‘Technology-driven Finance’
By: Feng Zhu, Anthony K. Woo and Nancy Hua Dai
In mid-December 2018, Peter Ma, Chairman and CEO of Ping An Insurance (Group) Company of China, Ltd. was considering whether the company should grow a fifth ecosystem of Smart City Services. Established in 1988, Ping An was one of the top 10 global financial...
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Keywords:
Business Ecosystems;
Fintech;
Finance;
Information Technology;
Business Model;
Expansion;
Competitive Strategy;
Financial Services Industry;
Technology Industry
Zhu, Feng, Anthony K. Woo, and Nancy Hua Dai. "Ping An: Pioneering the New Model of ‘Technology-driven Finance’." Harvard Business School Case 620-068, April 2020. (Revised November 2020.)
- April 2020
- Article
CEO Behavior and Firm Performance
By: Oriana Bandiera, Stephen Hansen, Andrea Prat and Raffaella Sadun
We measure the behavior of 1,114 CEOs in six countries parsing granular CEO diary data through an unsupervised machine learning algorithm. The algorithm uncovers two distinct behavioral types: "leaders" and "managers." Leaders focus on multi-function, high-level...
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Bandiera, Oriana, Stephen Hansen, Andrea Prat, and Raffaella Sadun. "CEO Behavior and Firm Performance." Journal of Political Economy 128, no. 4 (April 2020): 1325–1369.
- March 2020
- Teaching Note
onefinestay: Building a Luxury Experience in the Sharing Economy
By: Jill Avery and Anat Keinan
onefinestay was a two-sided marketplace that offered high-end home rentals to travelers who sought a more authentic and local experience than a typical upscale hotel might provide. After five years of rapid growth, it was time to do a comprehensive analysis of the...
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Keywords:
Two-sided Marketplace;
Two-sided Market;
Hospitality Industry;
Hotels;
Luxury Brand;
Sharing Economy;
Startup;
Scaling;
Growth;
Customer Segmentation;
Brand Positioning;
Marketing;
Marketing Strategy;
Brands and Branding;
Luxury;
Entrepreneurship;
Business Startups;
Business Model;
Venture Capital;
Customers;
Segmentation;
Growth and Development Strategy;
Travel Industry;
Tourism Industry;
Accommodations Industry;
United Kingdom;
London;
Europe
- Mar 2020
- Conference Presentation
A New Analysis of Differential Privacy's Generalization Guarantees
By: Christopher Jung, Katrina Ligett, Seth Neel, Aaron Roth, Saeed Sharifi-Malvajerdi and Moshe Shenfeld
We give a new proof of the "transfer theorem" underlying adaptive data analysis: that any mechanism for answering adaptively chosen statistical queries that is differentially private and sample-accurate is also accurate out-of-sample. Our new proof is elementary and...
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Jung, Christopher, Katrina Ligett, Seth Neel, Aaron Roth, Saeed Sharifi-Malvajerdi, and Moshe Shenfeld. "A New Analysis of Differential Privacy's Generalization Guarantees." Paper presented at the 11th Innovations in Theoretical Computer Science Conference, Seattle, March 2020.
- January–February 2020
- Article
Competing in the Age of AI
By: Marco Iansiti and Karim R. Lakhani
Today’s markets are being reshaped by a new kind of firm—one in which artificial intelligence (AI) runs the show. This cohort includes giants like Google, Facebook, and Alibaba, and growing businesses such as Wayfair and Ocado. Every time we use their services, the...
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Keywords:
Artificial Intelligence;
Algorithms;
Technological Innovation;
Business Model;
Competition;
Competitive Strategy;
AI and Machine Learning
Iansiti, Marco, and Karim R. Lakhani. "Competing in the Age of AI." Harvard Business Review 98, no. 1 (January–February 2020): 60–67.