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Show Results For
- All HBS Web
(3,917)
- People (12)
- News (537)
- Research (2,876)
- Events (33)
- Multimedia (24)
- Faculty Publications (2,050)
- July 1991
- Case
Pioneer Petroleum Corp.
Pioneer is an integrated oil company. Its operations include exploration and development, production, transportation, and marketing. The case focuses on Pioneer's cost of capital calculations and its choice between a single company-wide cost of capital or divisional... View Details
Ruback, Richard S. "Pioneer Petroleum Corp." Harvard Business School Case 292-011, July 1991.
- March 2021 (Revised June 2022)
- Case
James Bryant Conant: Changing the World
By: Robert Simons and Shirley Sun
This case traces the rise of James Conant from a working-class neighborhood in Boston to president of Harvard University. The case describes how Conant, as a young man interested in chemistry and physics, embarks on studies to build his academic credentials and the... View Details
Keywords: Education; Science; Higher Education; Mission and Purpose; Research; Values and Beliefs; Personal Characteristics; Work-Life Balance; Personal Development and Career; Education Industry; Boston
Simons, Robert, and Shirley Sun. "James Bryant Conant: Changing the World." Harvard Business School Case 121-068, March 2021. (Revised June 2022.)
- Article
How B2B Companies Can Win Back Customers They've Lost
By: Frank V. Cespedes and León Poblete
Most research and training in sales focus on acquiring new customers. But winning back previous customers is increasingly important: mergers, choice in supply chains, and uncertainty about trade wars mean that B2B customers are constantly re-evaluating relationships... View Details
Cespedes, Frank V., and León Poblete. "How B2B Companies Can Win Back Customers They've Lost." Harvard Business Review (website) (June 3, 2019).
- June 2018
- Teaching Note
Meridian Systems (Brief Case)
By: Frank V. Cespedes and Michael J. Roberts
Teaching Note for HBS No. 918-533. The key issues discussed in the Meridian teaching note concern sales force deployment: decisions about how to focus sales efforts with respect to territories, customers, and products. The teaching note explains the strengths and... View Details
- July 2012
- Module Note
Corporate Strategy
By: Bharat N. Anand
This note provides an overview of strategies for multi-business firms. The note describes (i) what is meant by "corporate advantage," (ii) the different approaches that multi-business firms can pursue in order to create corporate advantage, (iii) the specific corporate... View Details
Keywords: Corporate Strategy
Anand, Bharat N. "Corporate Strategy." Harvard Business School Module Note 713-415, July 2012.
- 2007
- Working Paper
The Political Economy of 'Natural' Disasters
By: Charles Cohen and Eric D. Werker
Natural disasters occur in a political space. Although events beyond our control may trigger a disaster, the level of government preparedness and response greatly determines the extent of suffering incurred by the affected population. We use a political economy model... View Details
Keywords: Policy; Government and Politics; Strategic Planning; Mathematical Methods; Natural Disasters; Welfare or Wellbeing
Cohen, Charles, and Eric D. Werker. "The Political Economy of 'Natural' Disasters." Harvard Business School Working Paper, No. 08-040, December 2007. (Revised November 2008.)
- 2010
- Working Paper
A Brief Postwar History of U.S. Consumer Finance
By: Andrea Ryan, Gunnar Trumbull and Peter Tufano
This article describes the consumer finance sector in the US since World War II. We first define the sector in terms of the functions delivered by firms (payments, savings/investing, borrowing, managing risk, and providing advice.) We provide time series evidence on... View Details
Keywords: Decision Choices and Conditions; Borrowing and Debt; Mortgages; Personal Finance; Business History; Innovation and Invention; Risk and Uncertainty; Financial Services Industry; United States
Ryan, Andrea, Gunnar Trumbull, and Peter Tufano. "A Brief Postwar History of U.S. Consumer Finance." Harvard Business School Working Paper, No. 11-058, December 2010.
- 24 Jun 2015
- Working Paper Summaries
Accounting Data, Market Values, and the Cross Section of Expected Returns World
- June 2025
- Case
Accounting for OpenAI at Microsoft
By: Jonas Heese, Joseph Pacelli, Nicole Zelazko and Michael Norris
In early 2025, Microsoft was evaluating the impact of its $14 billion investment in OpenAI. As OpenAI’s computing needs expanded, Microsoft positioned Azure as the exclusive provider for training and inference of their large language models. Despite the scale of the... View Details
- June 2023 (Revised July 2025)
- Case
Albert Einstein: Changing the World
By: Robert Simons and Shirley Sun
This case traces the rise of Albert Einstein from a small town in Germany to a towering intellectual leader who revolutionized the field of physics. The case describes his early education and his penchant for individual thinking and non-conformity. A committed... View Details
Keywords: Science; Research; Personal Characteristics; Mission and Purpose; Success; Work-Life Balance; Higher Education; Power and Influence
Simons, Robert, and Shirley Sun. "Albert Einstein: Changing the World." Harvard Business School Case 123-025, June 2023. (Revised July 2025.)
- 2022
- Working Paper
Consumer Reviews and Regulation: Evidence from NYC Restaurants
By: Chiara Farronato and Georgios Zervas
We investigate the informativeness of hygiene signals in online reviews, and their effect on consumer choice and restaurant hygiene. We first extract signals of hygiene from Yelp. Among all dimensions that regulators monitor through mandated restaurant inspections, we... View Details
Keywords: Restaurants; Reviews; Hygiene; Yelp; Regulation; Food; Governing Rules, Regulations, and Reforms; Consumer Behavior
Farronato, Chiara, and Georgios Zervas. "Consumer Reviews and Regulation: Evidence from NYC Restaurants." NBER Working Paper Series, No. 29715, February 2022.
- January 2013 (Revised October 2013)
- Case
Chef Davide Oldani and Ristorante D'O
By: Gary Pisano, Alessandro Di Fiore, Elena Corsi and Elisa Farri
This case examines the unique business model of Ristorante D'O, a high end gourmand restaurant located near Milan, Italy. Founded by Chef Davide Oldani, D'O offers meals at approximately one-third the price of other Michelin starred restaurants. Oldani has made this... View Details
Keywords: Business Model; Expansion; Creativity; Competitive Strategy; Retail Industry; Food and Beverage Industry; Milan
Pisano, Gary, Alessandro Di Fiore, Elena Corsi, and Elisa Farri. "Chef Davide Oldani and Ristorante D'O." Harvard Business School Case 613-080, January 2013. (Revised October 2013.)
- July 2008 (Revised September 2009)
- Case
Betfair vs. UK Bookmakers
By: Ramon Casadesus-Masanell and Neil Campbell
Betting exchanges provide an electronic platform that allows ordinary consumers to not only back teams to win, but also to lay odds for other punters to back. This business model allows punters to cut out the middleman of the bookmaker and leads to a much more... View Details
Keywords: Business Model; Decision Choices and Conditions; Two-Sided Platforms; Market Transactions; Competition; Entertainment and Recreation Industry
Casadesus-Masanell, Ramon, and Neil Campbell. "Betfair vs. UK Bookmakers." Harvard Business School Case 709-417, July 2008. (Revised September 2009.)
- February 2010 (Revised March 2013)
- Case
Zynga (A)
By: Mikolaj Jan Piskorski and David Chen
In January 2010 Mark Pincus is deciding how to double the number of Zynga games' players to 500 million without sacrificing profitability. These ambitious growth plans required changes to product, corporate strategy, and customer acquisition and retention. With regard... View Details
Keywords: Customer Focus and Relationships; Decision Choices and Conditions; Growth and Development Strategy; Distribution Channels; Product Development; Organizational Change and Adaptation; Corporate Strategy; Video Game Industry
Piskorski, Mikolaj Jan, and David Chen. "Zynga (A)." Harvard Business School Case 710-464, February 2010. (Revised March 2013.)
- 02 Jan 2024
- Research & Ideas
10 Trends to Watch in 2024
The lightning-fast ascent of generative AI isn’t the only sea change on the horizon for businesses in the new year. The global economy is in flux as war, climate change, trade issues, and infrastructure problems demand attention. Many companies continue to struggle to... View Details
Keywords: by Rachel Layne
- Web
Strategy - Doctoral
relationship between non-market experience and the use and outcome of patent strategies by pharmaceutical firms; the antecedents and consequences of corporate strategy decision-making, specifically focusing on divestitures and governance; the impact of religion on... View Details
- May 2021
- Case
Roku 2021
By: David B. Yoffie and Daniel Fisher
This case is used to explore the strategic concept of "look forward, reason back." Roku in 2021 is trying to figure out the future of television and streaming media. Students are asked to provide a vision for television and streaming media (that is, Look Forward) by... View Details
Keywords: Television Entertainment; Forecasting and Prediction; Decision Choices and Conditions; Strategy; Strategic Planning; Media and Broadcasting Industry
Yoffie, David B., and Daniel Fisher. "Roku 2021." Harvard Business School Case 721-480, May 2021.
- 05 Apr 2011
- First Look
First Look: April 5
Limits to Network Effects Authors:Hann Hałaburda and Mikołaj Jan Piskorski Abstract We model conditions under which agents in two-sided matching markets rationally prefer a platform restricting choice rather than a platform that offers... View Details
Keywords: Sean Silverthorne
- Research Summary
Strength of Incentives
By: Jerry R. Green
When economists analyze the incentive properties of decision making systems they assume that all economic agents are capable of optimizing their decisions and that they respond without error to the incentives that the system creates. In this project, Jerry R. Green... View Details
- 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.