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(7,233)
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- News (1,278)
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- Events (79)
- Multimedia (45)
- Faculty Publications (3,631)
Show Results For
- All HBS Web
(7,233)
- People (19)
- News (1,278)
- Research (4,945)
- Events (79)
- Multimedia (45)
- Faculty Publications (3,631)
- September–October 2020
- Article
The Air War Versus the Ground Game: An Analysis of Multi-Channel Marketing in U.S. Presidential Elections
By: Lingling Zhang and Doug J. Chung
This study jointly examines the effects of television advertising and field operations in U.S. presidential elections, with the former referred to as the “air war” and the latter as the “ground game.” Specifically, the study focuses on how different campaign... View Details
Keywords: Multi-channel Marketing; Ground Campaigning; Political Campaigns; Discrete-choice Model; Instrumental Variables; Political Elections; Marketing Channels; Advertising; United States
Zhang, Lingling, and Doug J. Chung. "The Air War Versus the Ground Game: An Analysis of Multi-Channel Marketing in U.S. Presidential Elections." Marketing Science 39, no. 5 (September–October 2020): 872–892.
- February 2018
- Supplement
Qualtrics (B)
By: Doug J. Chung and James M. Lattin
Qualtrics was an online survey research platform and since the beginning, the company had relied entirely on an inside sales model—sales done remotely without face-to-face contact with clients. The low-cost inside sales model, along with an emphasis on a strong sales... View Details
Keywords: Inside Sales Model; Sales; Strategy; Growth and Development Strategy; Organizational Change and Adaptation
Chung, Doug J., and James M. Lattin. "Qualtrics (B)." Harvard Business School Supplement 518-083, February 2018.
- 2025
- Working Paper
Private Equity and Workers: Modeling and Measuring Monopsony, Implicit Contracts, and Efficient Reallocation
By: Kyle Herkenhoff, Josh Lerner, Gordon M. Phillips, Francisca Rebelo and Benjamin Sampson
We measure the real effects of private equity buyouts on worker outcomes by building a new
database that links transactions to matched employer-employee data in the United States. To
guide our empirical analysis, we derive testable implications from three theories in... View Details
Herkenhoff, Kyle, Josh Lerner, Gordon M. Phillips, Francisca Rebelo, and Benjamin Sampson. "Private Equity and Workers: Modeling and Measuring Monopsony, Implicit Contracts, and Efficient Reallocation." Harvard Business School Working Paper, No. 25-046, March 2025. (Revised June 2025.)
- July 2023 (Revised July 2023)
- Background Note
Generative AI Value Chain
By: Andy Wu and Matt Higgins
Generative AI refers to a type of artificial intelligence (AI) that can create new content (e.g., text, image, or audio) in response to a prompt from a user. ChatGPT, Bard, and Claude are examples of text generating AIs, and DALL-E, Midjourney, and Stable Diffusion are... View Details
Keywords: AI; Artificial Intelligence; Model; Hardware; Data Centers; AI and Machine Learning; Applications and Software; Analytics and Data Science; Value
Wu, Andy, and Matt Higgins. "Generative AI Value Chain." Harvard Business School Background Note 724-355, July 2023. (Revised July 2023.)
- November – December 2011
- Article
Modeling a Paradigm Shift: From Producer Innovation to User and Open Collaborative Innovation
By: Carliss Baldwin and Eric von Hippel
In this paper, we assess the economic viability of innovation by producers relative to two increasingly important alternative models: innovations by single-user individuals or firms and open collaborative innovation. We analyze the design costs and architectures and... View Details
Keywords: Collaborative Innovation and Invention; Design; Cost; Communication; Competition; Economy; Research; Policy; Practice
Baldwin, Carliss, and Eric von Hippel. "Modeling a Paradigm Shift: From Producer Innovation to User and Open Collaborative Innovation." Organization Science 22, no. 6 (November–December 2011): 1399–1417.
- Article
Introducing the Sociopolitical Motive x Intergroup Threat Model to Understand How Monoracial Perceivers' Sociopolitical Motives Influence Their Categorization of Multiracial People
By: Arnold K. Ho, Nour Kteily and Jacqueline M. Chen
Ho, Arnold K., Nour Kteily, and Jacqueline M. Chen. "Introducing the Sociopolitical Motive x Intergroup Threat Model to Understand How Monoracial Perceivers' Sociopolitical Motives Influence Their Categorization of Multiracial People." Personality and Social Psychology Review 24, no. 3 (August 2020): 260–286.
- 2009
- Working Paper
Modeling a Paradigm Shift: From Producer Innovation to User and Open Collaborative Innovation
By: Carliss Y. Baldwin and Eric von Hippel
In this paper we assess the economic viability of innovation by producers relative to two increasingly important alternative models: innovations by single user individuals or firms, and open collaborative innovation projects. We analyze the design costs and... View Details
Keywords: Cost; Policy; Collaborative Innovation and Invention; Independent Innovation and Invention; Intellectual Property; Rights; Welfare
Baldwin, Carliss Y., and Eric von Hippel. "Modeling a Paradigm Shift: From Producer Innovation to User and Open Collaborative Innovation." Harvard Business School Working Paper, No. 10-038, November 2009.
Modeling a Paradigm Shift: From Producer Innovation to User and Open Collaborative Innovation
Organization Science, 22(6):1399-1417
We argue that innovation by individual users and open collaborative innovation increasingly compete with and may displace producer innovation in many parts of the economy.
View Details- Article
How to Shift from Selling Products to Selling Services
By: Doug J. Chung
Only a few years ago, most software companies sold seat licenses for their products, charging customers on the basis of head count. But today, software is typically provided using cloud-based software-as-a-service (SaaS) models that charge customers fees for... View Details
Keywords: SaaS Business Models; Sales; Management; Business Model; Salesforce Management; Applications and Software; Customer Relationship Management
Chung, Doug J. "How to Shift from Selling Products to Selling Services." Harvard Business Review 99, no. 2 (March–April 2021): 48–52.
- November 2001 (Revised September 2004)
- Case
Evolution of Treatment, The: The Case of Diabetes
By: Richard M.J. Bohmer, Jeffrey D. Street and Laura Feldman
Scientific knowledge surrounding diabetes mellitus has grown over the last century to include its cause, treatment, and prevention strategies. However, the type and level of care that patients receive is suboptional. This case examines the forces in industry,... View Details
Keywords: Policy; Health Care and Treatment; Innovation and Management; Knowledge Use and Leverage; Management; Management Analysis, Tools, and Techniques; Health Industry
Bohmer, Richard M.J., Jeffrey D. Street, and Laura Feldman. "Evolution of Treatment, The: The Case of Diabetes." Harvard Business School Case 302-023, November 2001. (Revised September 2004.)
- August 2021
- Case
Mylestone: Can Multiple Pivots Preserve the Life of a Death Tech Startup?
By: Shikhar Ghosh and Marilyn Morgan Westner
Dave Balter and Jim Myers co-founded Mylestone, a death tech startup that applied technology to transform how grieving people memorialize the dead. The startup addressed a cultural problem and promised to solve a pressing need in the antiquated, multi-billion dollar... View Details
Keywords: Pivot; Startup; Business Model; Cryptocurrency; Ethical Decision Making; Emotions; Growth and Development Strategy; Ethics; Market Entry and Exit; Customer Relationship Management; Loss; Change Management; Relationships
Ghosh, Shikhar, and Marilyn Morgan Westner. "Mylestone: Can Multiple Pivots Preserve the Life of a Death Tech Startup?" Harvard Business School Case 822-018, August 2021.
- Web
The Spread and Adoption of Option Pricing Models - Option Pricing in Theory & Practice: The Nobel Prize Research of Robert C. Merton - Exhibits - Historical Collections
Introduction Prelude to the Option Pricing Model The Formula The Spread and Adoption of Option Pricing Models The Significance and Consequences View Details
- September 2010
- Article
Strategies to Fight Ad-sponsored Rivals
By: Ramon Casadesus-Masanell and Feng Zhu
We analyze the optimal strategy of a high-quality incumbent that faces a low-quality ad-sponsored competitor. In addition to competing through adjustments of tactical variables such as price or the number of ads a product carries, we allow the incumbent to consider... View Details
Keywords: Strategy; Business Models; Tactics; Pricing; Business Model; Advertising; Competition; Quality; Price; Product Marketing
Casadesus-Masanell, Ramon, and Feng Zhu. "Strategies to Fight Ad-sponsored Rivals." Management Science 56, no. 9 (September 2010): 1484–1499.
- June 2020 (Revised August 2020)
- Supplement
Vanguard Retail Operations (B)
By: Willy C. Shih and Antonio Moreno
The first two cases in this series are set in the financial services industry, and explore whether it is better for back-office workers to be generalists who provide the flexibility of being able to handle the complete range of transactions that the company faces or... View Details
Keywords: Pooling; Generalist Model; Specialist Model; Service Operations; Management; Financial Services Industry; United States
Shih, Willy C., and Antonio Moreno. "Vanguard Retail Operations (B)." Harvard Business School Supplement 620-105, June 2020. (Revised August 2020.)
- January 2021 (Revised March 2021)
- Case
Jumia's Path to Profitability
By: Ramon Casadesus-Masanell, Pippa Tubman Armerding and Gamze Yucaoglu
The case opens in September 2019 as Sacha Poignonnec and Jeremy Hodara, co-founders and co-CEOs of Jumia, the leading Pan-African e-commerce platform, are contemplating the company’s path to profitability in the aftermath of a fragile investor sentiment, as the company... View Details
Keywords: Retail; Business Models; Business Model; Business Startups; Emerging Markets; For-Profit Firms; Strategy; Digital Platforms; Information Technology; Technology Adoption; Value Creation; Globalization; Entrepreneurship; Competition; Expansion; Logistics; Profit; Resource Allocation; Diversification; Corporate Strategy; Retail Industry; Technology Industry; Africa
Casadesus-Masanell, Ramon, Pippa Tubman Armerding, and Gamze Yucaoglu. "Jumia's Path to Profitability." Harvard Business School Case 721-355, January 2021. (Revised March 2021.)
- May 2000
- Article
Maxmin Expected Utility over Savage Acts with a Set of Priors
By: Ramon Casadesus-Masanell, Peter Klibanoff and Emre Ozdenoren
This paper provides an axiomatic foundation for a maxmin expected utility over a set of priors (MMEU) decision rule in an environment where the elements of choice are Savage acts. This characterization complements the original axiomatizations of MMEU developed in a... View Details
Keywords: Uncertainty Aversion; Ambiguity; Expected Utility; Set Of Priors; Knightian Uncertainty; Decision Making; Game Theory; Risk and Uncertainty; Mathematical Methods
Casadesus-Masanell, Ramon, Peter Klibanoff, and Emre Ozdenoren. "Maxmin Expected Utility over Savage Acts with a Set of Priors." Journal of Economic Theory 92, no. 1 (May 2000): 35–65.