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Show Results For
- All HBS Web
(7,233)
- People (19)
- News (1,278)
- Research (4,945)
- Events (79)
- Multimedia (45)
- Faculty Publications (3,631)
- October 2016 (Revised March 2019)
- Case
Carrum Health: Scaling Bundled Payments
By: Robert S. Huckman and Sarah Mehta
Founded in 2014, Carrum Health helped self-insured employers located in three markets (San Diego, California; Seattle, Washington; and San Francisco, California) save money on their employees’ planned surgeries. It did so by contracting directly with top-quality... View Details
Keywords: Health Financing; Health Insurance; Value-based Healthcare Reimbursements; Bundled Payments; Innovation; Scale; Health; Health Care and Treatment; Cost Management; Growth and Development Strategy; Decision Choices and Conditions; Health Industry; California; San Francisco; San Diego; Seattle
Huckman, Robert S., and Sarah Mehta. "Carrum Health: Scaling Bundled Payments." Harvard Business School Case 617-017, October 2016. (Revised March 2019.)
- February 2015 (Revised September 2016)
- Teaching Note
Making stickK Stick: The Business of Behavioral Economics
By: Leslie K. John and Michael Norton
Email mking@hbs.edu for a courtesy copy.
This Teaching Note explains the theory of the case and teaching plan for the case: Making sticK Stick: The Business of Behavioral Economics (514019). The case focuses on a... View Details
This Teaching Note explains the theory of the case and teaching plan for the case: Making sticK Stick: The Business of Behavioral Economics (514019). The case focuses on a... View Details
Keywords: Behavioral Economics; Behavior Change; B2B Vs. B2C; Human Resource Management; Marketing Of Innovations; Health ＆ Wellness; Weight Loss; Charitable Giving; Marketing; Consumer Behavior; Entrepreneurship; Internet and the Web; Health; Business Model; Sales; Human Resources; Health Industry; United States
John, Leslie K., and Michael Norton. "Making stickK Stick: The Business of Behavioral Economics." Harvard Business School Teaching Note 515-088, February 2015. (Revised September 2016.) (Email mking@hbs.edu for a courtesy copy.)
- Article
The Stock Selection and Performance of Buy-Side Analysts
We examine the selection and performance of stocks recommended by analysts at a large investment firm relative to those of sell-side analysts during the period mid-1997 and 2004. The buy-side firm's analysts issued less optimistic recommendations for stocks with larger... View Details
Keywords: Buy-side Analysts; Sell-side Analysts; Stock Recommendations; Recommendation Optimism; Recommendation Performance; Investment Recommendations; Conflicts Of Interest; Financial Markets; Financial Institutions; Stocks; Financial Services Industry; United States
Groysberg, Boris, Paul M. Healy, Georgios Serafeim, Devin Shanthikumar, and Gui Yang. "The Stock Selection and Performance of Buy-Side Analysts." Harvard Business School Working Knowledge (March 20, 2012).
- November 2022
- Background Note
The Future of E-Commerce: Lessons from the Livestream Wars in China
By: Ayelet Israeli, Jeremy Yang and Billy Chan
This note explores the emerging multi-billion dollar commerce trend of livestream commerce. Livestream commerce is the sale of goods or services directly to consumers via live shows on digital platforms (such as social media or e-commerce platforms). It is a form of... View Details
Keywords: Retail; Retailing; E-commerce; E-Commerce Strategy; Ecommerce; Channels Of Distribution; Marketing Communication; Livestream Commerce; Marketing; Marketing Channels; Marketing Strategy; Advertising; Brands and Branding; Media; Consumer Behavior; Social Media; Retail Industry; Consumer Products Industry; Advertising Industry; China; United States; United Kingdom
Israeli, Ayelet, Jeremy Yang, and Billy Chan. "The Future of E-Commerce: Lessons from the Livestream Wars in China." Harvard Business School Background Note 523-055, November 2022.
- Article
Robust and Stable Black Box Explanations
By: Himabindu Lakkaraju, Nino Arsov and Osbert Bastani
As machine learning black boxes are increasingly being deployed in real-world applications, there
has been a growing interest in developing post hoc explanations that summarize the behaviors
of these black boxes. However, existing algorithms for generating such... View Details
Lakkaraju, Himabindu, Nino Arsov, and Osbert Bastani. "Robust and Stable Black Box Explanations." Proceedings of the International Conference on Machine Learning (ICML) 37th (2020): 5628–5638. (Published in PMLR, Vol. 119.)
- Article
Counterfactual Explanations Can Be Manipulated
By: Dylan Slack, Sophie Hilgard, Himabindu Lakkaraju and Sameer Singh
Counterfactual explanations are useful for both generating recourse and auditing fairness between groups. We seek to understand whether adversaries can manipulate counterfactual explanations in an algorithmic recourse setting: if counterfactual explanations indicate... View Details
Slack, Dylan, Sophie Hilgard, Himabindu Lakkaraju, and Sameer Singh. "Counterfactual Explanations Can Be Manipulated." Advances in Neural Information Processing Systems (NeurIPS) 34 (2021).
- January 2022 (Revised September 2023)
- Case
Simplifyy
By: Paul A. Gompers and Alicia Dadlani
Jake Lisby, co-founder and CEO of Simplifyy, a property technology startup in Kansas City, Missouri, was both exhausted and exhilarated by the flurry of activity surrounding the pivot of the business model in late 2021. Simplifyy, a venture-backed PropTech company, was... View Details
Keywords: SaaS; SaaS Business Models; Business Model; Business Startups; Small Business; Geographic Location; Technological Innovation; Information Technology; Transformation; Problems and Challenges; Real Estate Industry; Information Technology Industry; United States; Missouri
Gompers, Paul A., and Alicia Dadlani. "Simplifyy." Harvard Business School Case 222-050, January 2022. (Revised September 2023.)
- 2023
- Book
How the Harvard Business School Changed the Way We View Organizations
By: Jay W. Lorsch
The story of the field of organizational behavior (which overlaps considerably with the origin story of Harvard Business School) and how it created the “medical model” of systems thinking—anchored in the practices of listening, observing, testing, and only then... View Details
Keywords: Organizational Behavior; Systems Thinking; Medical Model; Organizations; Behavior; System; History
Lorsch, Jay W. How the Harvard Business School Changed the Way We View Organizations. Business Expert Press, 2023.
- July 2022
- Article
What Do I Make of the Rest of My Life? Global and Quotidian Life Construal across the Retirement Transition
By: Jeff Steiner and Teresa M. Amabile
Retirement means relinquishing the daily structure that work provides and the career-dependent meanings that it offers life narratives. The retirement transition can therefore involve contemplating both how to spend newly-freed daily time and the implications of... View Details
Keywords: Retirement Transition; Life Narrative; Construal Level Theory; Global Construal; Quotidian Construal; Meanings Of Work And Retirement; Retirement; Transition; Perspective
Steiner, Jeff, and Teresa M. Amabile. "What Do I Make of the Rest of My Life? Global and Quotidian Life Construal across the Retirement Transition." Art. 104137. Organizational Behavior and Human Decision Processes 171 (July 2022).
- October 2024
- Technical Note
Prompt Engineering
By: Michael Parzen and Jo Ellery
This note covers the basics of prompt engineering, a key tool for making use of modern generative AI. We discuss the principles of prompt engineering and illustrate these principles with techniques for asking questions. We further list the types of prompts that can be... View Details
Parzen, Michael, and Jo Ellery. "Prompt Engineering." Harvard Business School Technical Note 625-056, October 2024.
- September 2021
- Case
Worldreader: Helping Readers Build a Better World
By: Marco Bertini, Elie Ofek and Julia Kelley
Founded in 2010, Worldreader was an international nonprofit organization that promoted reading to children around the world. For many years, Worldreader distributed e-readers to under-resourced communities and funded its operations primarily through philanthropic... View Details
Keywords: Subscription Model; Price; Financial Strategy; Education; Early Childhood Education; Learning; Geography; Geographic Scope; Global Range; Goals and Objectives; Marketing; Marketing Strategy; Markets; Organizations; Mission and Purpose; Social Enterprise; Non-Governmental Organizations; Nonprofit Organizations; Society; Social Issues; Strategy; Commercialization; Expansion; Segmentation; Education Industry; Africa; Asia; Latin America; Europe; North and Central America; South America
Bertini, Marco, Elie Ofek, and Julia Kelley. "Worldreader: Helping Readers Build a Better World." Harvard Business School Case 522-003, September 2021.
- 2025
- Working Paper
Narrative AI and the Human-AI Oversight Paradox in Evaluating Early-Stage Innovations
By: Jacqueline N. Lane, Léonard Boussioux, Charles Ayoubi, Ying Hao Chen, Camila Lin, Rebecca Spens, Pooja Wagh and Pei-Hsin Wang
Do AI-generated narrative explanations enhance human oversight or diminish it? We investigate this question through a field experiment with 228 evaluators screening 48 early-stage innovations under three conditions: human-only, black-box AI recommendations without... View Details
Lane, Jacqueline N., Léonard Boussioux, Charles Ayoubi, Ying Hao Chen, Camila Lin, Rebecca Spens, Pooja Wagh, and Pei-Hsin Wang. "Narrative AI and the Human-AI Oversight Paradox in Evaluating Early-Stage Innovations." Harvard Business School Working Paper, No. 25-001, August 2024. (Revised May 2025.)
- May 2013
- Article
The Stock Selection and Performance of Buy-Side Analysts
Prior research on equity analysts focuses almost exclusively on those employed by sell-side investment banks and brokerage houses. Yet investment firms undertake their own buy-side research and their analysts face different stock selection and recommendation incentives... View Details
Keywords: Buy-side Analysts; Sell-side Analysts; Stock Recommendations; Recommendation Optimism; Recommendation Performance; Investment Recommendations; Conflicts Of Interest; Financial Markets; Financial Institutions; Financial Services Industry; United States
Groysberg, Boris, Paul Healy, George Serafeim, and Devin Shanthikumar. "The Stock Selection and Performance of Buy-Side Analysts." Management Science 59, no. 5 (May 2013): 1062–1075.
- March 2022 (Revised January 2025)
- Technical Note
Linear Regression
By: Iavor I. Bojinov, Michael Parzen and Paul Hamilton
This note provides an overview of linear regression for an introductory data science course. It begins with a discussion of correlation, and explains why correlation does not necessarily imply causation. The note then describes the method of least squares, and how to... View Details
Keywords: Data Science; Linear Regression; Mathematical Modeling; Mathematical Methods; Analytics and Data Science
Bojinov, Iavor I., Michael Parzen, and Paul Hamilton. "Linear Regression." Harvard Business School Technical Note 622-100, March 2022. (Revised January 2025.)
- November 2022 (Revised March 2024)
- Case
Replika AI: Monetizing a Chatbot
By: Julian De Freitas and Nicole Tempest Keller
In early 2018, Eugenia Kuyda, co-founder and CEO of San Francisco-based chatbot Replika AI, was deciding how to monetize the app she had built. Launched in 2017, Replika was a consumer AI “companion app” developed by a team of AI software engineers originally based in... View Details
Keywords: Mental Health; Subscriber Models; TAM; Monetization Strategy; Marketing Strategy; Product Marketing; AI and Machine Learning; Applications and Software; Product Positioning; Health Disorders; Technology Industry
De Freitas, Julian, and Nicole Tempest Keller. "Replika AI: Monetizing a Chatbot." Harvard Business School Case 523-016, November 2022. (Revised March 2024.)
- November 2016 (Revised February 2017)
- Case
BrightStar Care: The Evolution of a Leadership Team
By: Boris Groysberg, Colleen Ammerman and John D. Vaughan
BrightStar Care was a rapidly growing franchise of home health care agencies. Founded by husband and wife team JD and Shelly Sun as a single agency near Chicago in 2002, BrightStar had opened nearly 300 franchises across the United States by 2016, generating over $300... View Details
Keywords: Health Care Services; Entrepreneurs; Board Of Directors; Boards Of Directors; Health Care Industry; Growth Strategy; Organizational Change; Brand Positioning; Entrepreneurial Organizations; Entrepreneurial Management; Franchising; Family-owned Business; Home Health Care; Managing Growth; Management Styles; Organizational Development; Talent Management; Women Executives; Women And Leadership; Business Startups; Family Business; Small Business; Talent and Talent Management; Governing and Advisory Boards; Health Care and Treatment; Human Capital; Leadership Development; Leadership Style; Business or Company Management; Growth and Development Strategy; Management Analysis, Tools, and Techniques; Management Skills; Management Style; Management Succession; Management Systems; Management Teams; Brands and Branding; Marketing Strategy; Strategy
Groysberg, Boris, Colleen Ammerman, and John D. Vaughan. "BrightStar Care: The Evolution of a Leadership Team." Harvard Business School Case 417-020, November 2016. (Revised February 2017.)
- 2015
- Comment
In the Shadow of the Crowd: A Comment on 'Valve's Way'
There are many ways to exercise authority. Perrow (1986), in his review of March and Simon's Organizations (1958), offers a threefold classification of the ways authority can be exercised in organizations: (1) direct, "fully obtrusive" controls such as giving orders... View Details
Keywords: New Forms Of Organizing; Organizational Forms; Non-hierarchical Organizations; Self-organizing Teams; Boss-less Organizations; Organizational Design; United States
Baldwin, Carliss Y. "In the Shadow of the Crowd: A Comment on 'Valve's Way'." Journal of Organization Design 4, no. 2 (2015): 5–7.