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Show Results For
- All HBS Web
(6,288)
- People (30)
- News (1,629)
- Research (3,701)
- Events (7)
- Multimedia (9)
- Faculty Publications (2,562)
William A. Sahlman
William Sahlman is a Baker Foundation Professor of Business Administration at Harvard Business School.
Mr. Sahlman received an A.B. degree in Economics from Princeton University (1972), an M.B.A. from Harvard University (1975), and a Ph.D. in Business... View Details
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- June 2019
- Case
Airbnb, Etsy, Uber: Expanding from One to Many Millions of Customers
By: Thales S. Teixeira
By 2019, two-sided online platforms (or marketplaces) were among the highest-growing internet startups around. These marketplaces sought to match suppliers of assets for rent, physical products, or services with customers demanding them. Among the most notable... View Details
Keywords: Airbnb; Etsy; Uber; Growth Hacking; Two-Sided Markets; Digital Marketing; Customer Acquisition; Two-Sided Platforms; Growth Management; Marketing Strategy; Customers; Acquisition; Organizational Change and Adaptation
Teixeira, Thales S. "Airbnb, Etsy, Uber: Expanding from One to Many Millions of Customers." Harvard Business School Case 519-087, June 2019.
- December 2007 (Revised February 2009)
- Case
Don Jenkins: Resigning from the Firm
By: Boris Groysberg, Geoff Eckman Marietta and Steven Manchel
Don Jenkins, a star event planner at a large firm, resigns to take a position at a boutique firm. However, Don may have made some mistakes when departing that could be trouble later on down the road. The case can be used to teach the business and legal aspects of... View Details
Keywords: Talent and Talent Management; Resignation and Termination; Retention; Law; Service Industry
Groysberg, Boris, Geoff Eckman Marietta, and Steven Manchel. "Don Jenkins: Resigning from the Firm." Harvard Business School Case 408-094, December 2007. (Revised February 2009.)
- March 2020 (Revised June 2022)
- Case
GreenLight Fund
By: Brian Trelstad, Julia Kelley and Mel Martin
As Tara Noland, the Executive Director (ED) of GreenLight Cincinnati, reflected on her first few years on the job. Noland had delivered on what she had been hired to do in the city: work with leading philanthropists and nonprofit executives to use data and evidence to... View Details
Keywords: Philanthropy; Venture Philanthropy; Replication; Philanthropy and Charitable Giving; Venture Capital; Social Issues; Decision Making; Analytics and Data Science; Cincinnati
Trelstad, Brian, Julia Kelley, and Mel Martin. "GreenLight Fund." Harvard Business School Case 320-053, March 2020. (Revised June 2022.)
- 2009
- Working Paper
Fluid Tasks and Fluid Teams: The Impact of Diversity in Experience and Team Familiarity on Team Performance
By: Robert S. Huckman and Bradley R. Staats
In this paper, we consider how the structures of tasks and teams interact to affect team performance. We study the effects of diversity in experience on a team's ability to respond to task changes, by separately examining interpersonal team diversity (i.e., differences... View Details
Keywords: Familiarity; Knowledge Use and Leverage; Groups and Teams; Projects; Experience and Expertise; Diversity; India
Huckman, Robert S., and Bradley R. Staats. "Fluid Tasks and Fluid Teams: The Impact of Diversity in Experience and Team Familiarity on Team Performance." Harvard Business School Working Paper, No. 09-145, June 2009. (Revised August 2009, November 2009, April 2010, August 2010; revise and resubmit, Manufacturing and Service Operations Management.)
- April 2005
- Case
FBI: Mission Extended
Following the bombing of the World Trade Center in 1993, there was consensus that the FBI needed to make organizational changes. The FBI had long distinguished itself as the world's pre-eminent organization for conducting after-the-fact investigations that laid the... View Details
Beaulieu, Nancy D., and Aaron Zimmerman. "FBI: Mission Extended." Harvard Business School Case 905-061, April 2005.
The Growth of Finance
The U.S. financial services industry grew from 4.9% of GDP in 1980 to 7.9% of GDP in 2007. A sizeable portion of the growth can be explained by rising asset management fees, which in turn were driven by increases in the valuation of tradable assets, particularly... View Details
- September 1992 (Revised September 1993)
- Case
Cleveland-Cliffs, Inc.
By: Jay O. Light
A New York-based money manager owns a sizable percentage of the common shares of Cleveland-Cliffs, a U.S. iron ore producer. The money manager would prefer that Cliffs pay out or otherwise return $100 million of "excess cash" to the shareholders. The management resists... View Details
Keywords: Asset Management; Financial Strategy; Mining; Business and Shareholder Relations; Financial Services Industry
Light, Jay O. "Cleveland-Cliffs, Inc." Harvard Business School Case 293-051, September 1992. (Revised September 1993.)
- July 2007 (Revised March 2008)
- Background Note
Staging Two-Sided Platforms
By: Thomas R. Eisenmann and Andrei Hagiu
Firms that aspire to develop two-sided platforms face a formidable challenge. Prospective users on each side will not invest in the platform until they are confident there will be enough users on the other side. Traditional strategies for dealing with this... View Details
Keywords: Business Model; Risk Management; Two-Sided Platforms; Supply Chain; Strategy; Retail Industry
Eisenmann, Thomas R., and Andrei Hagiu. "Staging Two-Sided Platforms." Harvard Business School Background Note 808-004, July 2007. (Revised March 2008.)
- October 2022 (Revised June 2025)
- Case
Lyra Health: Transforming Mental Health
By: Rembrand Koning and Nicole Keller
In January 2022, Lyra Health was deciding between several different alternatives to grow the business. Founded in 2015, Lyra Health, was a digital mental health platform that combined technology with human therapists and coaches to deliver high quality mental health... View Details
Keywords: Mental Health; Health Care and Treatment; Corporate Entrepreneurship; Customer Value and Value Chain; Growth and Development Strategy; Expansion; Health Industry; Technology Industry; San Francisco
Koning, Rembrand, and Nicole Keller. "Lyra Health: Transforming Mental Health." Harvard Business School Case 723-365, October 2022. (Revised June 2025.)
- March 1996
- Case
Ernst & Young United Kingdom (A) (Abridged)
By: John J. Gabarro and Samantha Graff
Intended to be a robust example of the challenges encountered during the early stages of a large-scale organizational transformation effort in a professional service firm. Describes a massive change program initiated and led by the new managing partner along with a... View Details
Keywords: Change Management; Leading Change; Management Teams; Organizational Change and Adaptation; Restructuring; Problems and Challenges; United Kingdom; London
Gabarro, John J., and Samantha Graff. "Ernst & Young United Kingdom (A) (Abridged)." Harvard Business School Case 496-049, March 1996.
- February 2009 (Revised March 2013)
- Case
Shanghai Diligence Law Firm (A)
By: Robert G. Eccles and Catherine Zhang
Shanghai Diligence Law Firm, started in January 2006, is a rapidly growing law firm in China's burgeoning legal services market. In addition to the usual challenges facing all professional service firms (picking and retaining talent and building a desired client... View Details
Keywords: Business Startups; Compensation and Benefits; Retention; Growth and Development Strategy; Service Operations; Motivation and Incentives; Legal Services Industry; China
Eccles, Robert G., and Catherine Zhang. "Shanghai Diligence Law Firm (A)." Harvard Business School Case 409-065, February 2009. (Revised March 2013.)
- November 2022
- Case
Wendy Estrella: Scaling Multiple Businesses
By: Jeffrey J. Bussgang and Sarah Mehta
Entrepreneur Wendy Estrella, a self-made, Latina millionaire based in Lawrence, Massachusetts, is attempting to simultaneously scale her law practice as well as her property management and development company. What path should she take for each and can she do it all,... View Details
- 2009
- Book
Merchants to Multinationals
By: G. Jones
Merchants to Multinationals examines the evolution of multinational trading companies from the eighteenth century to the present day. During the Industrial Revolution, British merchants established overseas branches which became major trade intermediaries and... View Details
- April 1997 (Revised July 1997)
- Case
KPMG Peat Marwick U.S.: One Giant Brain
Demonstrates how organizations can move toward creation of processes and information technology infrastructures for effective knowledge management in order to enhance performance and productivity. More specifically, describes the knowledge management strategy of KPMG... View Details
Keywords: Internet; Information Technology; Knowledge Management; Service Industry; Service Industry; United States
Alavi, Maryam. "KPMG Peat Marwick U.S.: One Giant Brain." Harvard Business School Case 397-108, April 1997. (Revised July 1997.)
- 2013
- Chapter
Effective Teamwork and Collaboration
By: Heidi K. Gardner
Book Abstract: The ability to attract, develop, and retain talent has become one of the biggest competitive issues for law firms. But although talent management is now recognized as a business issue of prime importance, law firms often lack the experience, vision, and... View Details
- Research Summary
Executive Compensation
By: Tatiana Sandino
Professor Sandino’s other stream of research examines players that influence the design of an executive’s compensation. She has examined the role shareholder activists can play in influencing CEO pay and found that a compensation-related shareholder proposal could... View Details
- August 2013 (Revised October 2013)
- Case
Modern Family Planning: The Business of Circle Surrogacy
By: Ramon Casadesus-Masanell and Blake Landro
The business of surrogacy, a boutique practice with client costs upwards of $100,000, allowed couples and individuals from a variety of backgrounds, ages, and sexual orientations to build families. This case examines Circle Surrogacy (CS), one of the premier surrogacy... View Details
Keywords: Family Planning; Platform; Competitive Advantage; Law; Globalization; Competitive Strategy; Digital Platforms; United States; Ukraine
Casadesus-Masanell, Ramon, and Blake Landro. "Modern Family Planning: The Business of Circle Surrogacy." Harvard Business School Case 714-418, August 2013. (Revised October 2013.)
- June 1997 (Revised May 1998)
- Case
Mobil USM&R (A1)
By: Robert S. Kaplan
First of a two-part case on the development and use of a Balanced Scorecard (BSC) at Mobil's US Marketing and Refining Division. Split from the original (A) case to give students an opportunity to suggest objectives and measures for the division's initial BSC, without... View Details
Keywords: Balanced Scorecard; Measurement and Metrics; Restructuring; Corporate Strategy; Organizational Change and Adaptation; Growth and Development Strategy; Management Teams; Marketing Strategy; Motivation and Incentives; Mining Industry; Energy Industry; United States
Kaplan, Robert S. "Mobil USM&R (A1)." Harvard Business School Case 197-120, June 1997. (Revised May 1998.)
- July 2009 (Revised June 2011)
- Case
RiskMetrics Group
By: Jay W. Lorsch and Kaitlyn Simpson
RiskMetrics Group, a risk and governance consultancy, had a great deal of influence on U.S. companies. This case examines the history and growth of the company, the governance services it offers, the extent of its impact on shareholders, the controversy surrounding its... View Details
Keywords: Conflict of Interests; Risk Management; Governing and Advisory Boards; Corporate Governance; Power and Influence; Consulting Industry; United States
Lorsch, Jay W., and Kaitlyn Simpson. "RiskMetrics Group." Harvard Business School Case 410-008, July 2009. (Revised June 2011.)