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Show Results For
- All HBS Web
(3,542)
- People (9)
- News (720)
- Research (2,169)
- Events (38)
- Multimedia (28)
- Faculty Publications (1,297)
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- February 2021
- Tutorial
T-tests: Theory and Practice
By: Michael Parzen, Natalie Epstein, Chiara Farronato and Michael Toffel
This video provides an introduction to hypothesis testing, sampling, t-tests, and p-values. It provides examples of A/B testing and t-testing to assess whether difference between two groups are statistically significant. This video can be assigned in conjunction with... View Details
- November 2006
- Case
Tickle
By: William A. Sahlman and Dan Heath
Describes a set of decisions confronting the management team of a rapidly growing online psychological testing and social networking company. They can either sell the company to a large public company, raise another round of capital from a preeminent venture capital... View Details
- November 1982
- Article
The Social Psychology of Creativity: A Consensual Assessment Technique
By: T. M. Amabile
States that both the popular creativity tests, such as the Torrance Tests of Creative Thinking, and the subjective assessment techniques used in some previous creativity studies are ill-suited to social psychological studies of creativity. A consensual definition of... View Details
Amabile, T. M. "The Social Psychology of Creativity: A Consensual Assessment Technique." Journal of Personality and Social Psychology 43, no. 5 (November 1982): 997–1013.
- 2014
- Working Paper
Digital Discrimination: The Case of Airbnb.com
By: Benjamin Edelman and Michael Luca
Online marketplaces often contain information not only about products, but also about the people selling the products. In an effort to facilitate trust, many platforms encourage sellers to provide personal profiles and even to post pictures of themselves. However,... View Details
Keywords: Prejudice and Bias; Internet and the Web; Race; Trust; Renting or Rental; Accommodations Industry; Real Estate Industry
Edelman, Benjamin, and Michael Luca. "Digital Discrimination: The Case of Airbnb.com." Harvard Business School Working Paper, No. 14-054, January 2014.
- October 2007 (Revised January 2009)
- Background Note
Analyzing Relative Costs
By: Hanna Halaburda and Jan W. Rivkin
Introduces students to the technique of relative cost analysis, a core technique of strategists. Among the intricate quantitative analyses that strategists undertake, relative cost analysis may be the most common. The goal of a relative cost analysis is simply to... View Details
Keywords: Cost; Management Analysis, Tools, and Techniques; Mathematical Methods; Competition; Competitive Advantage
Halaburda, Hanna, and Jan W. Rivkin. "Analyzing Relative Costs." Harvard Business School Background Note 708-462, October 2007. (Revised January 2009.)
- 12 Jul 2017
- Working Paper Summaries
Task Selection and Workload: A Focus on Completing Easy Tasks Hurts Long-Term Performance
- Research Summary
Negotiations
My third line of research, on negotiations, also focuses on the improvisational nature of group processes. In one paper (with Kathleen McGinn and Elizabeth Long Lingo), I test the relationships between communication media (face-to-face vs. electronically mediated),... View Details
- August 1986 (Revised September 2004)
- Case
Hanson Ski Products
By: William J. Bruns Jr. and Julie H. Hertenstein
At the end of the budget cycle, the manager must test whether plans are feasible given financing arrangements and constraints. Cash needs are great due to seasonality. Needed loans must be calculated at five separate dates, and financial position projected. This is a... View Details
Keywords: Budgets and Budgeting; Capital Budgeting; Cash Flow; Financial Strategy; Activity Based Costing and Management; Financing and Loans; Managerial Roles; Credit; Insurance
Bruns, William J., Jr., and Julie H. Hertenstein. "Hanson Ski Products." Harvard Business School Case 187-038, August 1986. (Revised September 2004.)
- October 1981 (Revised June 1985)
- Case
Vicks Health Care Division: Project Scorpio (B1)
To be handed out during class discussion of the (B) case. Reveals that Vicks developed a second name and advertising positioning. Presents results of copy testing, and further test market results. Students have to choose between the two names and positionings, as well... View Details
Yip, George S., and Jeffrey R Williams. "Vicks Health Care Division: Project Scorpio (B1)." Harvard Business School Case 582-041, October 1981. (Revised June 1985.)
- February 2016 (Revised July 2017)
- Case
A Nation Divided: The United States and the Challenge of Secession
By: David Moss and Marc Campasano
Americans elected Abraham Lincoln as the nation's first Republican president in November of 1860. Northern political leaders had formed the Republican Party only a few years before, in large measure to combat the spread of slavery. Southerners had long been wary of... View Details
Moss, David, and Marc Campasano. "A Nation Divided: The United States and the Challenge of Secession." Harvard Business School Case 716-048, February 2016. (Revised July 2017.)
- July 2024
- Supplement
Fail Safe Testing, Inc. (B)
By: Richard S. Ruback and Royce Yudkoff
Pre-Abstract: Instructors should consider the timing of making videos available to students, as they may reveal key case details.
Abstract: Fail Safe Testing, Inc., founded in 1988, was the leading provider of fire hose pressure testing, ground ladder and pump... View Details
Abstract: Fail Safe Testing, Inc., founded in 1988, was the leading provider of fire hose pressure testing, ground ladder and pump... View Details
Ruback, Richard S., and Royce Yudkoff. "Fail Safe Testing, Inc. (B)." Harvard Business School Multimedia/Video Supplement 224-750, July 2024.
- September 2023
- Article
The Changing Role of Managers
By: Letian Zhang
This study argues that the increase in middle management in recent decades was
accompanied by a major shift in managerial roles. Increased task complexity and a
new management philosophy have reduced the need for direct supervision but generated
a much greater... View Details
Zhang, Letian. "The Changing Role of Managers." American Journal of Sociology 129, no. 2 (September 2023): 439–484.
- December 2003 (Revised February 2004)
- Case
Scott Lawson's Dilemma
By: Thomas R. Piper
The head of SysCom's test equipment division is concerned about how to answer employee and customer questions concerning the possible sale or liquidation of the division. The consequences of alternative approaches (full transparency vs. strong optimism and reassurance)... View Details
Keywords: Business Exit or Shutdown; Interpersonal Communication; Business Divisions; Corporate Governance; Ethics; Manufacturing Industry; Technology Industry
Piper, Thomas R. "Scott Lawson's Dilemma." Harvard Business School Case 204-107, December 2003. (Revised February 2004.)
- July 2005
- Exercise
Insider Trading Quiz
By: Lynn S. Paine and Christopher Bruner
Designed to test understanding of basic theories of insider trading under U.S. law. Presents six scenarios based on actual situations in which insider trading was alleged to have violated U.S. law, as well as a seventh scenario that took place in Italy, permitting... View Details
Keywords: Crime and Corruption; Stock Shares; Governing Rules, Regulations, and Reforms; Law; Theory; Europe; Italy; United States
Paine, Lynn S., and Christopher Bruner. "Insider Trading Quiz." Harvard Business School Exercise 306-016, July 2005.
- November 2023 (Revised April 2024)
- Case
Khanmigo: Revolutionizing Learning with GenAI
By: William A. Sahlman, Allison M. Ciechanover and Emily Grandjean
Already a leader in the edtech space since its 2008 launch, Khan Academy was now one of the first edtech organizations to embrace generative artificial intelligence ("genAI"). In March 2023, Khan Academy began beta testing Khanmigo, a genAI “guide” and tutor built with... View Details
Keywords: Technology Adoption; Leading Change; Entrepreneurship; Risk and Uncertainty; Education; AI and Machine Learning; Corporate Social Responsibility and Impact; Education Industry; Technology Industry; United States; San Francisco
Sahlman, William A., Allison M. Ciechanover, and Emily Grandjean. "Khanmigo: Revolutionizing Learning with GenAI." Harvard Business School Case 824-059, November 2023. (Revised April 2024.)
- June 2012
- Article
The Transparency Paradox: A Role for Privacy in Organizational Learning and Operational Control
Using data from embedded participant-observers and a field experiment at the second largest mobile phone factory in the world, located in China, I theorize and test the implications of transparent organizational design on workers' productivity and organizational... View Details
Keywords: Transparency; Privacy; Organizational Learning; Operational Control; Organizational Performance; Chinese Manufacturing; Field Experiment; Rights; Interpersonal Communication; Management Practices and Processes; Ethics; Corporate Disclosure; Performance Productivity; Boundaries; Organizations; Social and Collaborative Networks; Labor and Management Relations; Power and Influence; Manufacturing Industry; China
Bernstein, Ethan S. "The Transparency Paradox: A Role for Privacy in Organizational Learning and Operational Control." Administrative Science Quarterly 57, no. 2 (June 2012): 181–216.
- Article
Applying Random Coefficient Models to Strategy Research: Identifying and Exploring Firm Heterogeneous Effects
By: Juan Alcácer, Wilbur Chung, Ashton Hawk and Gonçalo Pacheco-de-Almeida
Strategy aims at understanding the differential effects of firms’ actions on performance. However, standard regression models estimate only the average effects of these actions across firms. Our paper discusses how random coefficient models (RCMs) may generate new... View Details
Alcácer, Juan, Wilbur Chung, Ashton Hawk, and Gonçalo Pacheco-de-Almeida. "Applying Random Coefficient Models to Strategy Research: Identifying and Exploring Firm Heterogeneous Effects." Strategy Science 3, no. 3 (September 2018): 481–553.
- September 2001 (Revised August 2005)
- Case
Deaconess-Glover Hospital (C)
For nearly three months, John Carter, a vascular surgeon by training, had been studying a variety of clinical processes at Deaconess-Glover Hospital in Needham, Mass. Carter was looking for an opportunity to test the applicability of Toyota Production System... View Details
Keywords: Organizational Change and Adaptation; Health Care and Treatment; Business Processes; Health Industry
Spear, Steven J. "Deaconess-Glover Hospital (C)." Harvard Business School Case 602-028, September 2001. (Revised August 2005.)
- 2008
- Working Paper
Rethinking the Role of History in Law & Economics: The Case of the Federal Radio Commission in 1927
By: David A. Moss and Jonathan B. Lackow
In the study of law and economics, there is a danger that historical inferences from theory may infect historical tests of theory. It is imperative, therefore, that historical tests always involve a vigorous search not only for confirming evidence, but for... View Details
Keywords: Economic History; Decision Choices and Conditions; Government Legislation; Law; Media and Broadcasting Industry
Moss, David A., and Jonathan B. Lackow. "Rethinking the Role of History in Law & Economics: The Case of the Federal Radio Commission in 1927." Harvard Business School Working Paper, No. 09-008, August 2008.
- Article
Mitigating Bias in Adaptive Data Gathering via Differential Privacy
By: Seth Neel and Aaron Leon Roth
Data that is gathered adaptively—via bandit algorithms, for example—exhibits bias. This is true both when gathering simple numeric valued data—the empirical means kept track of by stochastic bandit algorithms are biased downwards—and when gathering more complicated... View Details
Neel, Seth, and Aaron Leon Roth. "Mitigating Bias in Adaptive Data Gathering via Differential Privacy." Proceedings of the International Conference on Machine Learning (ICML) 35th (2018).