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Show Results For
- All HBS Web
(3,503)
- People (9)
- News (712)
- Research (2,141)
- Events (34)
- Multimedia (26)
- Faculty Publications (1,261)
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- January 2014 (Revised June 2014)
- Case
23andMe: Genetic Testing for Consumers (A)
By: John A. Quelch and Margaret L. Rodriguez
On November 22, 2013, the direct-to-consumer genetic testing provider, 23andMe, received a letter from the U.S. Food and Drug Administration (FDA) ordering the company to halt the sale and promotion of its genetic testing kit. The FDA stated that the product was... View Details
Keywords: Public Health; Genome Testing; Health Care; Ancestry; 23andMe; Marketing; Product Launch; Health; Health Care and Treatment; Health Testing and Trials; Genetics; Strategy; Health Industry; United States
Quelch, John A., and Margaret L. Rodriguez. "23andMe: Genetic Testing for Consumers (A)." Harvard Business School Case 514-086, January 2014. (Revised June 2014.)
- March–April 2020
- Article
Avoid the Pitfalls of A/B Testing
By: Iavor I. Bojinov, Guillaume Sait-Jacques and Martin Tingley
Online experiments measuring whether “A,” usually the current approach, is inferior to “B,” a proposed improvement, have become integral to the product-development cycle, especially at digital enterprises. But often firms make serious mistakes in conducting these... View Details
Keywords: A/B Testing; Experiment Design; Social Networks; Product Development; Performance Improvement; Measurement and Metrics; Social Media
Bojinov, Iavor I., Guillaume Sait-Jacques, and Martin Tingley. "Avoid the Pitfalls of A/B Testing." Harvard Business Review 98, no. 2 (March–April 2020): 48–53.
- 2020
- Working Paper
Digital Experimentation and Startup Performance: Evidence from A/B Testing
By: Rembrand Koning, Sharique Hasan and Aaron Chatterji
Recent work argues that experimentation is the appropriate framework for entrepreneurial strategy. We investigate this proposition by exploiting the time-varying adoption of A/B testing technology, which has drastically reduced the cost of experimentally testing... View Details
Keywords: Experimentation; A/B Testing; Data-driven Decision-making; Entrepreneurship; Strategy; Business Startups; Information Technology; Performance
Koning, Rembrand, Sharique Hasan, and Aaron Chatterji. "Digital Experimentation and Startup Performance: Evidence from A/B Testing." Harvard Business School Working Paper, No. 20-018, August 2019. (Revised September 2020. SSRN Working Paper Series, No. 3440291, August 2019)
- October 2020
- Background Note
The When and How of Effective Beta Testing
By: Robert J. Dolan
Dolan, Robert J. "The When and How of Effective Beta Testing." Harvard Business School Background Note 521-003, October 2020.
- September 2022
- Article
Experimentation and Start-up Performance: Evidence from A/B Testing
By: Rembrand Koning, Sharique Hasan and Aaron Chatterji
Recent scholarship has argued that experimentation should be the organizing principle for entrepreneurial strategy. Experimentation leads to organizational learning, which drives improvements in firm performance. We investigate this proposition by exploiting the... View Details
Keywords: Experimentation; A/B Testing; Data-driven Decision-making; Organizational Learning; Entrepreneurship; Strategy; Business Startups; Learning; Performance; Decision Making
Koning, Rembrand, Sharique Hasan, and Aaron Chatterji. "Experimentation and Start-up Performance: Evidence from A/B Testing." Management Science 68, no. 9 (September 2022): 6434–6453.
- November 1989 (Revised March 1992)
- Background Note
Concept Testing
By: Robert J. Dolan
Describes concept testing products. Presents guidelines for effective design, execution, and interpretation of test procedures. Discusses limitations of these techniques and sets out the situations for which they are appropriate. View Details
Dolan, Robert J. "Concept Testing." Harvard Business School Background Note 590-063, November 1989. (Revised March 1992.)
- October 2018 (Revised January 2019)
- Case
The Financial Crisis: Timothy Geithner and the Stress Tests
In February and March 2009, the U.S. economy was in the midst of a terrifying financial and economic crisis. Between the beginning of 2008 and early 2009, four of the 25 largest U.S. financial institutions had failed, and nine of these 25 institutions had taken... View Details
Keywords: Bailout; Regulation; Stress Test; Financial Crisis; History; Economy; Policy; Governing Rules, Regulations, and Reforms; Decision Making; Banking Industry; Financial Services Industry; Real Estate Industry; United States
Hanson, Samuel G., Robin Greenwood, David Scharfstein, and Adi Sunderam. "The Financial Crisis: Timothy Geithner and the Stress Tests." Harvard Business School Case 219-038, October 2018. (Revised January 2019.)
- Article
Testing Substitutability
By: John William Hatfield, Nicole Immorlica and Scott Duke Kominers
We provide an algorithm for testing the substitutability of a length-N preference relation over a set of contracts X in time O(|X|3⋅N3). Access to the preference relation is essential for this result: We show that a substitutability-testing algorithm with access only... View Details
Keywords: Substitutability; Matching; Communication Complexity; Preference Elicitation; Marketplace Matching; Communication; Mathematical Methods; Economics
Hatfield, John William, Nicole Immorlica, and Scott Duke Kominers. "Testing Substitutability." Games and Economic Behavior 75, no. 2 (July 2012): 639–645.
- September–October 2017
- Article
The Surprising Power of Online Experiments: Getting the Most Out of A/B and Other Controlled Tests
By: Ron Kohavi and Stefan Thomke
In the fast-moving digital world, even experts have a hard time assessing new ideas. Case in point: At Bing, a small headline change an employee proposed was deemed a low priority and shelved for months until one engineer decided to do a quick online controlled... View Details
Kohavi, Ron, and Stefan Thomke. "The Surprising Power of Online Experiments: Getting the Most Out of A/B and Other Controlled Tests." Harvard Business Review 95, no. 5 (September–October 2017): 74–82.
- Article
The Impact of Penalties for Wrong Answers on the Gender Gap in Test Scores
By: Katherine B. Coffman and David Klinowski
Multiple-choice exams play a critical role in university admissions across the world. A key question is whether imposing penalties for wrong answers on these exams deters guessing from women more than men, disadvantaging female test-takers. We consider data from a... View Details
Coffman, Katherine B., and David Klinowski. "The Impact of Penalties for Wrong Answers on the Gender Gap in Test Scores." Proceedings of the National Academy of Sciences 117, no. 16 (April 21, 2020): 8794–8803.
- September 2011
- Article
On Testing Business Models
By: D. Huelsbeck, K. Merchant and Tatiana Sandino
This study explored management decisions regarding formal empirical testing of business models. It documented a test of one company's business model under seemingly favorable conditions for such a test – a successful single product firm following a consistent strategy... View Details
Keywords: Performance Measurement; Non-financial Performance Measures; Business Models; Management Control; Decisions; Business Model; Performance Evaluation
Huelsbeck, D., K. Merchant, and Tatiana Sandino. "On Testing Business Models." Accounting Review 86, no. 5 (September 2011): 1631–1654. (Awarded a Research Grant from the Chartered Institute of Management Accountants.)
- October 2018 (Revised September 2020)
- Case
Testing Autonomy in Pittsburgh
By: Mitchell Weiss and Brittany Urick
Pittsburgh’s mayor had been among the first to welcome self-driving vehicles but was now one of many needing to react after a pedestrian fatality involving an autonomous Uber in Arizona. He had originally preferred to roll out “the red carpet” instead of the “red... View Details
Keywords: Public Entrepreneurship; Government Innovation; Government Experimentation; Autonomous Vehicles; Mayor; Mayor Peduto; Cities; Mobility; Automation; Uber; Argo Ai; Aurora Innovation; Aptiv; Entrepreneurship; Public Sector; Innovation and Invention; Transportation; City; Safety; Business and Government Relations; Transportation Industry; Auto Industry; United States; Pennsylvania; Pittsburgh
Weiss, Mitchell, and Brittany Urick. "Testing Autonomy in Pittsburgh." Harvard Business School Case 819-059, October 2018. (Revised September 2020.)
- September 1994 (Revised May 2010)
- Case
Hamilton Test Systems, Inc.
By: William A. Sahlman and Norman Klein
The protagonists must decide whether to invest in an auto emissions testing company as the first investment in the leveraged buyout fund they recently formed. Issues of how to raise the needed equity capital and how to structure the acquisition are emphasized. View Details
Keywords: Venture Capital; Leveraged Buyouts; Environmental Sustainability; Investment; Service Industry; Auto Industry
Sahlman, William A., and Norman Klein. "Hamilton Test Systems, Inc." Harvard Business School Case 295-017, September 1994. (Revised May 2010.)
- October 2020 (Revised November 2023)
- Case
COVID-19 Testing at Everlywell
By: Jeffrey J. Bussgang and Olivia Hull
In March 2020, as COVID-19 spreads rapidly across the U.S., Everlywell founder Julia Cheek considers how to respond as a small start-up specializing in at-home lab testing. After making dramatic budget cuts, she decides to pivot the organization to address the... View Details
Keywords: Entrepreneurship; Business Strategy; Venture Capital; Health Care and Treatment; Health Disorders; Leading Change; Technology Adoption; Digital Platforms; Competitive Strategy; Science; Adaptation; Corporate Social Responsibility and Impact; Crisis Management; Social Entrepreneurship; Ethics; Government Legislation; Health; Health Testing and Trials; Health Pandemics; Consumer Products Industry; Health Industry; Technology Industry; Texas; United States
Bussgang, Jeffrey J., and Olivia Hull. "COVID-19 Testing at Everlywell." Harvard Business School Case 821-001, October 2020. (Revised November 2023.)
- August 1991
- Background Note
Industrial Market Research: Beta Test Site Management
By: Robert J. Dolan
Describes the role of BETA tests in the new product development process and presents guidelines for effective test program development. View Details
Dolan, Robert J. "Industrial Market Research: Beta Test Site Management." Harvard Business School Background Note 592-010, August 1991.
- June 2021
- Teaching Plan
COVID-19 Testing at Everlywell
By: Jeffrey J. Bussgang and Olivia Hull
Teaching Plan for HBS Case No. 821-001. View Details
- 17 Jun 2002
- Research & Ideas
A Litmus Test for Entrepreneurs
Kuemmerle, who has studied more than fifty start-ups in twenty countries, says entrepreneurs today should take a litmus test of five questions (See sidebar). In this excerpt from Harvard Business Review, Kuemmerle discusses two of the... View Details
Keywords: by Walter Kuemmerle
- 11 Jan 2021
- Research & Ideas
Is A/B Testing Effective? Evidence from 35,000 Startups
Startups that use A/B testing scale more quickly, launch more products, and attract more venture capital, according to recent research. But not all startups enjoy these benefits. Early-stage startups using experimentation strategies... View Details
Keywords: by Kristen Senz
- August 1980 (Revised August 1985)
- Case
Teradyne, Inc.--1979: Semiconductor Test Division (A)
In 1979, the management of Teradyne's Semiconductor Test Division had to make important decisions regarding the allocation of engineering resources in the face of increased competition. They had to choose between upgrading an existing product and developing a new one. View Details
Keywords: Decisions; Resource Allocation; Product; Product Development; Competition; Semiconductor Industry
Shapiro, Benson P. "Teradyne, Inc.--1979: Semiconductor Test Division (A)." Harvard Business School Case 581-023, August 1980. (Revised August 1985.)