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Show Results For
- All HBS Web
(2,448)
- People (15)
- News (550)
- Research (1,166)
- Events (23)
- Multimedia (10)
- Faculty Publications (644)
William C. Vrattos
Bill Vrattos is a Senior Lecturer at the Harvard Business School, where he teaches Investment Strategies, a course on public market investing in the elective curriculum. He also co-teaches Private Equity Projects and Ecosystems, where he mentors student groups on... View Details
Frank Nagle
Frank Nagle is an assistant professor in the Strategy Unit at Harvard Business School. Professor Nagle studies how competitors can collaborate on the creation of core technologies, while still competing on the products and services built on top of them - especially... View Details
- March 2015
- Module Note
Power and Influence in Society
By: Julie Battilana
This module aims to help students understand how power and influence are employed, both to reproduce the status quo and to effect change in society. It first helps them to understand why, more often than not, power is used to reproduce the existing way individuals and... View Details
Battilana, Julie. "Power and Influence in Society." Harvard Business School Module Note 415-055, March 2015.
- Web
Curriculum | MBA
could be in a variety of fields related to biotechnology and life sciences including pharmaceutical companies, start-up biotechnology and life science companies, consulting with a focus on biotech/life sciences, policy/ government, or... View Details
- August 2020
- Article
Leverage and the Beta Anomaly
By: Malcolm Baker, Mathias F. Hoeyer and Jeffrey Wurgler
The well-known weak empirical relationship between beta risk and the cost of equity—the beta anomaly—generates a simple tradeoff theory: As firms lever up, the overall cost of capital falls as leverage increases equity beta, but as debt becomes riskier the marginal... View Details
Baker, Malcolm, Mathias F. Hoeyer, and Jeffrey Wurgler. "Leverage and the Beta Anomaly." Journal of Financial and Quantitative Analysis 55, no. 5 (August 2020): 1491–1514.
- 1997
- Chapter
Discussion of "Microeconomic Policy, Technological Change, and Small Business" by Edwin Mansfield
By: Joshua Lerner
Edwin Mansfield’s thoughtful review of the literature on the economics of technological change raises a variety of interesting issues, far too many to address in a few pages. Consequently I will focus my discussion on the section that I found most challenging and... View Details
Lerner, Joshua. Discussion of "Microeconomic Policy, Technological Change, and Small Business" by Edwin Mansfield. In Technology and Growth: Proceedings of the 40th Economic Conference, edited by Jeffrey C. Fuhrer and Jane Sneddon Little, 208–213. Boston: Federal Reserve Bank of Boston, 1997.
- December 1994 (Revised March 1996)
- Case
Ciba Consumer Pharmaceuticals' Acutrim: Challenges and Opportunities in Today's Diet Industry
By: Nancy F. Koehn and Rebecca Voorheis
Since its introduction in 1983, Acutrim has been a major player in the U.S. appetite suppressant market and in the broader diet industry. This case focuses on the strategic, regulatory, marketing, and financial challenges this product and the rapidly changing diet... View Details
Keywords: Product Marketing; Market Design; Industry Structures; Public Ownership; Problems and Challenges; Opportunities; Food and Beverage Industry; Pharmaceutical Industry; United States
Koehn, Nancy F., and Rebecca Voorheis. "Ciba Consumer Pharmaceuticals' Acutrim: Challenges and Opportunities in Today's Diet Industry." Harvard Business School Case 795-043, December 1994. (Revised March 1996.)
- April 2024
- Case
ChatGPT Enters the Voice Wars 2024
By: David B. Yoffie and Sarah von Bargen
OpenAI joined the Voice Wars in September 2023 when it launched its voice feature for ChatGPT. Initially only available to Pro subscribers, ChatGPT gave free access to all users two months later. It formed partnerships with a variety of companies, including carmakers,... View Details
Yoffie, David B., and Sarah von Bargen. "ChatGPT Enters the Voice Wars 2024." Harvard Business School Case 724-481, April 2024.
- October 2023
- Article
Product Variety, the Cost of Living, and Welfare Across Countries
By: Alberto Cavallo, Robert C. Feenstra and Robert Inklaar
We use the structure of the Melitz (2003) model to compute the cost of living and welfare across 47 countries, and compare these to conventional measures of prices and real consumption from the International Comparisons Project (ICP). The cost of living is inferred... View Details
Cavallo, Alberto, Robert C. Feenstra, and Robert Inklaar. "Product Variety, the Cost of Living, and Welfare Across Countries." American Economic Journal: Macroeconomics 15, no. 4 (October 2023): 40–66.
- May 2018
- Article
Using Online Prices for Measuring Real Consumption Across Countries
By: Alberto Cavallo, Erwin Diewert, Robert C. Feenstra, Robert Inklaar and Marcel P. Timmer
We show that online prices can be used to construct quarterly purchasing power parities (PPPs) with a closely matched set of goods and identical methodologies in a variety of developed and developing countries. Our results are close to those reported by the... View Details
Keywords: Purchasing Power Parity; International Economy; Online Prices; Billion Prices Project; Economics; Macroeconomics; Price; Internet and the Web; Spending; Economy; Global Range; Measurement and Metrics
Cavallo, Alberto, Erwin Diewert, Robert C. Feenstra, Robert Inklaar, and Marcel P. Timmer. "Using Online Prices for Measuring Real Consumption Across Countries." AEA Papers and Proceedings 108 (May 2018): 483–487.
- Article
Emodiversity and the Emotional Ecosystem
By: Jordi Quoidbach, June Gruber, Moira Mikolajczak, Alexsandr Kogan, Ilios Kotsou and Michael I. Norton
Bridging psychological research exploring emotional complexity and research in the natural sciences on the measurement of biodiversity, we introduce—and demonstrate the benefits of—emodiversity: the variety and relative abundance of the emotions that humans experience.... View Details
Quoidbach, Jordi, June Gruber, Moira Mikolajczak, Alexsandr Kogan, Ilios Kotsou, and Michael I. Norton. "Emodiversity and the Emotional Ecosystem." Journal of Experimental Psychology: General 143, no. 6 (December 2014): 2057–2066.
- February 2000 (Revised March 2000)
- Case
National Campaign to Prevent Teen Pregnancy
The National Campaign to Prevent Teen Pregnancy was founded in 1995 to bring together a variety of efforts to reduce teen pregnancy in the United States. Over the last four years the campaign has recruited a prestigious board, developed effective programs for... View Details
Sawhill, John C., and Susan Harmeling. "National Campaign to Prevent Teen Pregnancy." Harvard Business School Case 300-105, February 2000. (Revised March 2000.)
- November–December 2010
- Article
A Method for Defining Value in Healthcare Using Cancer Care as a Model
By: Thomas W. Feeley, Heidi Albright, Ronald Walters and Thomas W. Burke
Value-based healthcare delivery is being discussed in a variety of healthcare forums. This concept is of great importance in the reform of the US healthcare delivery system. Defining and applying the principles of value-based competition in healthcare delivery models... View Details
Keywords: Value Creation; Cancer Care In The U.S.; Healthcare; Health; Management; Measurement and Metrics; Health Industry; North and Central America
Feeley, Thomas W., Heidi Albright, Ronald Walters, and Thomas W. Burke. "A Method for Defining Value in Healthcare Using Cancer Care as a Model." Journal of Healthcare Management 55, no. 6 (November–December 2010): 399–412. (This article won the Edgar C. Hayhow Award from the American College of Healthcare Executive in 2012 as the article of the year in the Journal of Healthcare Management.)
- 2021
- Working Paper
Equilibrium Effects of Pay Transparency
By: Zoë B. Cullen and Bobak Pakzad-Hurson
The public discourse around pay transparency has focused on the direct effect: how workers seek
to rectify newly-disclosed pay inequities through renegotiations. The question of how wage-setting
and hiring practices of the firm respond in equilibrium has received... View Details
Archie L. Jones
Archie Jones is a Senior Lecturer in the Entrepreneurial Management Unit at the Harvard Business School, where he currently teaches Venture Capital and Private Equity, Field... View Details
- Teaching Interest
MBA Elective Curriculum Personal Selling and Sales Force Management
Personal selling is the primary (and sometimes the only) form of marketing activity for many firms, especially in a business-to-business context. The course focuses on the tactical component of managing a salesforce and on the strategic element of linking sales... View Details
- Article
How to Get the Most Out of Peer Support Groups: A Guide to the Benefits and Best Practices
By: Boris Groysberg and Robert Russman Halperin
For years business leaders have turned to peer forums—groups of four to 10 people with similar interests who meet regularly for confidential conversations—to share their problems, find support and insights, and learn and grow. But because such forums are small and... View Details
Groysberg, Boris, and Robert Russman Halperin. "How to Get the Most Out of Peer Support Groups: A Guide to the Benefits and Best Practices." Harvard Business Review 100, no. 3 (May–June 2022): 130–141.
- February 2002
- Background Note
Legal Aspects of Entrepreneurship: A Conceptual Framework
Identifies many of the legal issues likely to arise in the course of starting and growing a company. Suggests strategies not only for ensuring compliance with the law but also for using the law and the legal system to increase predictability, maximize value, marshal... View Details
Bagley, Constance E. "Legal Aspects of Entrepreneurship: A Conceptual Framework." Harvard Business School Background Note 802-161, February 2002.