Publications
Publications
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- All HBS Web
(1,554)
- Faculty Publications (269)
- February 2011
- Case
Chegg: Textbook Rental Takes Flight
By: Thomas R. Eisenmann, William A. Sahlman and Evan W. Richardson
In late 2010, Silicon Valley-based Chegg, the leading online college textbook rental company, is scaling rapidly. The case recounts Chegg's history from its origins as a distant competitor to Craigslist in college classified listings through a pivot into textbook... View Details
- January 2011 (Revised July 2012)
- Case
National Public Broadcasting
By: Richard S. Ruback and Royce Yudkoff
Bob Williams, the CEO of National Public Broadcasting (NPB), was considering an unsolicited offer to purchase the company in the early spring of 2006. The company was a media underwriting representative for public television and radio stations throughout the United... View Details
- 2011
- Article
How Should the Graduate Economics Core be Changed?
By: Vincent Pons, Jose Miguel Abito, Katarina Borovickova, Hays Golden, Jacob Goldin, Matthew A. Masten, Miguel Morin, Alexander Poirier, Israel Romem, Tyler Williams and Chamna Yoon
The authors present suggestions by graduate students from a range of economics departments for improving the first-year core sequence in economics. The students identified a number of elements that should be added to the core: more training in building microeconomic... View Details
- December 2010
- Background Note
Risk and Reward in Venture Capital
This note describes the payoff structure of investment in individual venture capital–backed companies and in venture capital portfolios. Venture Capital investments are characterized by high failure rate (0ver 50%) and a small number of given successes (greater than... View Details
- November 2010
- Case
Gilt Groupe
By: Michael J. Roberts, William A. Sahlman and Tamara Obradov
The case explores decisions faced by Gilt Groupe co-founders in 2009 regarding how rapidly to grow, which growth strategies to pursue and how much capital to raise. View Details
- July 2010
- Article
The Supply Side of Innovation: H-1B Visa Reforms and U.S. Ethnic Invention
By: William R. Kerr and William F. Lincoln
This study evaluates the impact of high-skilled immigrants on U.S. technology formation. We use reduced-form specifications that exploit large changes in the H-1B visa program. Higher H-1B admissions increase immigrant science and engineering (SE) employment and... View Details
- June 2010
- Article
What Causes Industry Agglomeration? Evidence from Coagglomeration Patterns
By: Glenn Ellison, Edward Glaeser and William R. Kerr
Why do firms cluster near one another? We test Marshall's theories of industrial agglomeration by examining which industries locate near one another, or coagglomerate. We construct pairwise coagglomeration indices for US manufacturing industries from the Economic... View Details
- February 2010
- Case
Saginaw Parts Co. and the General Motors Corp. Credit Default Swap
This two-page case demonstrates how to unbundle the cost of credit extensions from product prices by observing the price of a credit default swap. It also explores how credit default swaps work, and how trade creditors are treated under U.S. bankruptcy law. Finally it... View Details
- January 2010
- Article
Clusters of Entrepreneurship
By: Edward L. Glaeser, William R. Kerr and Giacomo A.M. Ponzetto
Employment growth is strongly predicted by smaller average establishment size, both across cities and across industries within cities, but there is little consensus on why this relationship exists. Traditional economic explanations emphasize factors that reduce entry... View Details
- November 2009 (Revised August 2010)
- Case
NovoCure Ltd.
By: William A. Sahlman and Sarah Flaherty
Venture capitalist William Doyle must raise $35 million for a portfolio company with a promising, novel cancer therapy, just as global capital markets are imploding in the fall of 2008. NovoCure, Ltd., has developed an electrical-field-based therapy, called Tumor... View Details
- October 2009
- Article
Managing Risk in the New World
Five experts gathered recently to discuss the future of enterprise risk management: Kaplan, the Baker Foundation Professor at Harvard Business School, who with his colleague David Norton developed the balanced scorecard; Mikes, an assistant professor at HBS who studies... View Details
- 2009
- Working Paper
Clusters of Entrepreneurship
By: Edward L. Glaeser, William R. Kerr and Giacomo A.M. Ponzetto
Employment growth is strongly predicted by smaller average establishment size, both across cities and across industries within cities, but there is little consensus on why this relationship exists. Traditional economic explanations emphasize factors that reduce entry... View Details
- Article
Local Industrial Conditions and Entrepreneurship: How Much of the Spatial Distribution Can We Explain?
By: Edward L. Glaeser and William R. Kerr
Why are some places more entrepreneurial than others? We use Census Bureau data to study local determinants of manufacturing startups across cities and industries. Demographics have limited explanatory power. Overall levels of local customers and suppliers are only... View Details
- June 2009 (Revised November 2020)
- Case
Busse Place
By: Arthur I Segel, William J. Poorvu, Richard Kessler, Justin Seth Ginsburgh and Eric Fleiss
Busse Corporate Center's largest tenant recently declared bankruptcy, leaving the building 38% occupied and significantly overleveraged. In a depressed suburban Chicago office market, Hannah Sanchez, the leasing agent, has to negotiate lease proposals with three... View Details
- June 2009
- Supplement
F. William McNabb, Chairman, Vanguard Group, Interviewed by Professor John Quelch, April 2008
By: John A. Quelch
Professor John Quelch interviewed F. William McNabb, Chairman, Vanguard Group in April 2008 to review updates since the original case was published in 2004. View Details
- March 2009 (Revised February 2011)
- Background Note
Note: Fair Value Accounting for Investments in Debt Securities
The note describes how fair value accounting applies to debt securities that are classified by financial institutions as (1) "trading" securities, (2) "available for sale" securities, or (3) "hold to maturity" securities. It explains the hierarchy for inputs used in... View Details
- March 2009 (Revised July 2010)
- Case
State Street Corporation
To maximize their effectiveness, color cases should be printed in color. State Street Corp. reports a 13% gain in EPS in 2008 amidst a global financial crisis. The stock price declines 59% on the day of the earnings report. This one day decline was exceeded in the... View Details
- January 2009
- Case
Xi'an International University: The Growth of Private Universities in China
By: William C. Kirby, Michael Shih-ta Chen, Keith Chi-ho Wong and Tracy Manty
Huang Teng founded Xi'an International University (XAIU) as a private institute of higher education in 1992. Throughout its ensuing years, the school filled a niche and met the demand of students who did not test into one of China's public institutions. In 2008, it was... View Details
- January 2009 (Revised May 2011)
- Case
China Mobile's Rural Communications Strategy
By: William C. Kirby, F. Warren McFarlan, G.A. Donovan and Tracy Manty
China Mobile was the world's leading mobile communications service provider with over 400 million customers. In some cities, its penetration rate was over 100%. With such huge successes, Chairman Wang Jianzhou was exploring ways to expand its customer base. Nearly... View Details
- Article
The Performer's Reactions to Procedural Injustice: When Prosocial Identity Reduces Prosocial Behavior
By: Adam M. Grant, Andrew Molinsky, Joshua D. Margolis, Melissa Kamin and William Schiano
Considerable research has examined how procedural injustice affects victims and witnesses of unfavorable outcomes, with little attention to the “performers” who deliver these outcomes. Drawing on dissonance theory, we hypothesized that performers' reactions to... View Details