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Show Results For
- All HBS Web
(660)
- People (2)
- News (171)
- Research (356)
- Events (2)
- Multimedia (5)
- Faculty Publications (222)
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- May 2020 (Revised December 2022)
- Case
Soofa: Displaying the Right Path?
By: Jeffrey J. Bussgang, Amy Klopfenstein and Amram Migdal
In November 2019, Sandra Richter, co-founder and CEO of Soofa, a network of advertising-supported digital bulletin boards, must decide between two different fundraising and expansion plans for her company. One plan entails raising $15 million in a Series A round and... View Details
Keywords: Business Ventures; Business Model; Business Plan; Business Startups; Entrepreneurship; Decision Making; Decisions; Ethics; Geography; Geopolitical Units; Finance; Investment; Markets; Market Entry and Exit; Demand and Consumers; Network Effects; Media; Society; Urban Development; Sustainable Cities; Information Technology; Information Infrastructure; Digital Platforms; Strategy; Business Strategy; Expansion; Relationships; Partners and Partnerships; Capital; Venture Capital; Advertising Industry; Technology Industry; Media and Broadcasting Industry; North and Central America; United States; Massachusetts; Cambridge
Bussgang, Jeffrey J., Amy Klopfenstein, and Amram Migdal. "Soofa: Displaying the Right Path?" Harvard Business School Case 820-098, May 2020. (Revised December 2022.)
- February 2018 (Revised December 2020)
- Case
People Analytics at Teach For America (A)
By: Jeffrey T. Polzer and Julia Kelley
As of mid-2016, national nonprofit Teach For America (TFA) had struggled with three consecutive years of declining application totals, and senior management was re-examining the organization's strategy, including recruitment and selection. A few months earlier, former... View Details
Polzer, Jeffrey T., and Julia Kelley. "People Analytics at Teach For America (A)." Harvard Business School Case 418-013, February 2018. (Revised December 2020.)
- 15 Jan 2019
- First Look
New Research and Ideas, January 15, 2019
their advice because such dismissal threatens advisors’ sense of self-worth, leading them to judge seekers more harshly. Moreover, these effects are compounded by advisor expertise: expert advisors are more likely to punish seekers who... View Details
Keywords: Dina Gerdeman
- 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.
- January 2009
- Article
Multinationals as Arbitrageurs? The Effect of Stock Market Valuations on Foreign Direct Investment
By: Malcolm Baker, C. Fritz Foley and Jeffrey Wurgler
Empirical evidence of imperfect integration across world capital markets suggests a role for cross-border arbitrage by multinationals. Consistent with multinational arbitrage as a determinant of foreign direct investment (FDI) patterns, we find that FDI flows increase... View Details
Keywords: Multinational Firms and Management; Financial Markets; Foreign Direct Investment; Valuation; Capital Markets; Cross-Cultural and Cross-Border Issues; Cost; Forecasting and Prediction; Capital; Stocks; Integration
Baker, Malcolm, C. Fritz Foley, and Jeffrey Wurgler. "Multinationals as Arbitrageurs? The Effect of Stock Market Valuations on Foreign Direct Investment." Review of Financial Studies 22, no. 1 (January 2009): 337–369.
- August 2006
- Article
Investor Sentiment and the Cross Section of Stock Returns
By: Malcolm Baker and Jeffrey Wurgler
We examine how investor sentiment affects the cross-section of stock returns. Theory predicts that a broad wave of sentiment will disproportionately affect stocks whose valuations are highly subjective and are difficult to arbitrage. We test this prediction by... View Details
Keywords: Behavioral Finance; Stocks; Investment Return; Forecasting and Prediction; Motivation and Incentives; Risk and Uncertainty; Volatility
Baker, Malcolm, and Jeffrey Wurgler. "Investor Sentiment and the Cross Section of Stock Returns." Journal of Finance 61, no. 4 (August 2006): 1645–1680.
- 2005
- Working Paper
Investor Sentiment and the Cross-Section of Stock Returns
By: Malcolm Baker and Jeffrey Wurgler
We examine how investor sentiment affects the cross-section of stock returns. Theory predicts that a broad wave of sentiment will disproportionately affect stocks whose valuations are highly subjective and are difficult to arbitrage. We test this prediction by studying... View Details
Baker, Malcolm, and Jeffrey Wurgler. "Investor Sentiment and the Cross-Section of Stock Returns." NBER Working Paper Series, No. w10449, April 2005. (First draft in 2003.)
- July 2021
- Case
A Close Shave at Squire
In 2020, just after closing a $34 million Series B financing round, Dave Salvant and Songe LaRon consider how to adjust their business, Squire Technologies, to the new realities posed by the COVID-19 pandemic. Their barbershop technology, including tools to run a shop... View Details
Keywords: Business Startups; Entrepreneurship; Venture Capital; Private Equity; Mobile and Wireless Technology; Applications and Software; Growth and Development Strategy; Health Pandemics; Beauty and Cosmetics Industry; Technology Industry; New York (city, NY); San Francisco
Bussgang, Jeffrey J., Zoë B. Cullen, William R. Kerr, Benjamin N. Roth, and Michael Norris. "A Close Shave at Squire." Harvard Business School Case 821-073, July 2021.
- April 2017 (Revised May 2022)
- Case
King Digital Entertainment
By: Jeffrey F. Rayport, Davide Sola, Federica Gabrieli and Elena Corsi
Riccardo Zacconi was the co-founder and CEO of King Digital Entertainment, the video game company that had quickly established itself as the world’s leading maker of casual games for mobile devices after the sensational success of its game “Candy Crush Saga.” Zacconi... View Details
Keywords: Entrepreneurship; Information Technology; Growth and Development Strategy; Organizational Structure; Acquisition; Decision Choices and Conditions; Video Game Industry; Europe; Sweden
Rayport, Jeffrey F., Davide Sola, Federica Gabrieli, and Elena Corsi. "King Digital Entertainment." Harvard Business School Case 817-117, April 2017. (Revised May 2022.)
- September 2009
- Module Note
Leading Teams Note
This note, which describes the architecture and processes that characterize effective teams, begins by detailing the steps involved in designing a team, from diagnosing the complexity, interdependence, and objectives of the task to harnessing the key resources teams... View Details
Keywords: Interpersonal Communication; Experience and Expertise; Decision Choices and Conditions; Knowledge Sharing; Leadership; Business Processes; Groups and Teams
Polzer, Jeffrey T. "Leading Teams Note." Harvard Business School Module Note 410-051, September 2009.
- November 2019
- Case
Chief: Role for Lindsay Kaplan
In 2018, Lindsay Kaplan is preparing to meet with Carolyn Childers about the possibility of co-founding Chief, a New York-based peer network for women executives. Kaplan is currently the vice president of communications and brand engagement at a successful mattress... View Details
Keywords: Negotiation; Entrepreneurship; Leadership; North and Central America; United States; New York (state, US); New York (city, NY)
Coffman, Katherine B., Jeffrey J. Bussgang, Kathleen L. McGinn, Julia Kelley, and Katherine Chen. "Chief: Role for Lindsay Kaplan." Harvard Business School Case 920-020, November 2019.
- 07 Aug 2007
- First Look
First Look: August 7, 2007
commencing approximately two years down the road. In the new hiring regime for federal judicial law clerks, by contrast, judges are exhorted to follow a set of start dates for considering and hiring applicants during the fall of the third... View Details
Keywords: Martha Lagace
- 03 Jan 2007
- First Look
First Look: January 3, 2007
compared to the opening of new establishments by existing firms. We find interstate banking deregulations had a strong positive effect on the birth of new firms relative to the facility expansions of existing firms. We find limited... View Details
Keywords: Sean Silverthorne
- 25 Sep 2018
- First Look
New Research and Ideas, September 25, 2018
from Medical Device Recalls By: Ball, George P., Jeffrey T. Macher, and Ariel Dora Stern Abstract—When innovations are successfully commercialized into new products, they can create value for both consumers and firms. When products... View Details
Keywords: Dina Gerdeman
- January 2018
- Case
Scaling Swagbucks (A)
By: Jeffrey F. Rayport and Matthew G. Preble
In early 2014, Chuck Davis (HBS '86) has joined Swagbucks as its first professional CEO to scale a successful and profitable brand promotion and consumer research business. Davis came into the job while serving as a venture partner at TCV, a growth stage VC firm,... View Details
Keywords: Loyalty Management; Scaling; Scale; Entrepreneurship; Human Resources; Employees; Employee Relationship Management; Organizational Change and Adaptation; Organizational Culture; Organizational Design; Leading Change; Growth Management; Religion; Information Technology; Internet and the Web; Transition; Leadership; Web Services Industry; Technology Industry
Rayport, Jeffrey F., and Matthew G. Preble. "Scaling Swagbucks (A)." Harvard Business School Case 818-070, January 2018.
- 2005
- Working Paper
Pseudo Market Timing and Predictive Regressions
By: Malcolm Baker, Ryan Taliaferro and Jeffrey Wurgler
A number of studies claim that aggregate managerial decision variables, such as aggregate equity issuance, have power to predict stock or bond market returns. Recent research argues that these results may be driven by an aggregate time-series version of Schultz's... View Details
Keywords: Managerial Roles; Equity; Market Timing; Financial Instruments; Investment Return; Mathematical Methods
Baker, Malcolm, Ryan Taliaferro, and Jeffrey Wurgler. "Pseudo Market Timing and Predictive Regressions." NBER Working Paper Series, No. 10823, January 2005. (First Draft in 2004.)
- 28 Oct 2008
- First Look
First Look: October 28, 2008
the online, Chicago-based t-shirt company, was not your typical fashion apparel company. The company, run by Jake Nickell, Jacob DeHart, and Jeffrey Kalmikoff, turned the fashion business on its head View Details
Keywords: Martha Lagace
- March 2024 (Revised August 2024)
- Case
Darktrace: Scaling Cybersecurity and AI (A)
By: Jeffrey F. Rayport and Alexis Lefort
In 2023, Darktrace CEO Poppy Gustafsson was contemplating her growth strategy at a leading U.K.-based cybersecurity venture, launched in 2013 by a group of anti-terror cyber specialists, University of Cambridge mathematicians, and artificial intelligence (AI) experts.... View Details
Keywords: Technology; Talent; Scaling; Entrepreneurship; Cybersecurity; Leadership; Business Growth and Maturation; Recruitment; Resignation and Termination; AI and Machine Learning; Growth and Development Strategy; Organizational Culture; Going Public; Technology Industry; United Kingdom; Europe; United States
Rayport, Jeffrey F., and Alexis Lefort. "Darktrace: Scaling Cybersecurity and AI (A)." Harvard Business School Case 824-092, March 2024. (Revised August 2024.)
- Article
Can Mutual Fund Managers Pick Stocks? Evidence from Their Trades Prior to Earnings Announcements
By: Malcolm Baker, Lubomir Litov, Jessica Wachter and Jeffrey Wurgler
We consider measures of stock-picking skill of mutual fund managers based on the earnings announcement returns of the stocks that they hold and trade. Relative to standard approaches, this approach focuses on an especially informative subset of the returns data,... View Details
Baker, Malcolm, Lubomir Litov, Jessica Wachter, and Jeffrey Wurgler. "Can Mutual Fund Managers Pick Stocks? Evidence from Their Trades Prior to Earnings Announcements." Journal of Financial and Quantitative Analysis 45, no. 5 (October 2010): 1111 –1131.
- Article
Achieving Value in Highly Complex Acute Care: Lessons from the Delivery of Extra Corporeal Life Support
By: Michael Nurok, Jonathan Warsh, Erik Dong, Jeffrey Lopez, Mayumi Kharabi and Robert S. Kaplan
We applied a value (outcomes and cost) analysis to extracorporeal life support (ECLS), a relatively rare but very expensive ICU therapy with highly variable outcomes. To address the outcome component of the value approach, we created guidelines for ECLS delivery; to... View Details
Nurok, Michael, Jonathan Warsh, Erik Dong, Jeffrey Lopez, Mayumi Kharabi, and Robert S. Kaplan. "Achieving Value in Highly Complex Acute Care: Lessons from the Delivery of Extra Corporeal Life Support." NEJM Catalyst (October 31, 2019).