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Show Results For
- All HBS Web
(3,523)
- People (9)
- News (719)
- Research (2,164)
- Events (38)
- Multimedia (28)
- Faculty Publications (1,287)
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- March 2020
- Case
Thingtesting: Launching a Brand Discovery and Testing Digital Community
By: Ayelet Israeli and Jill Avery
Thingtesting, a brand discovery and testing digital community devoted to uncovering and exploring direct-to-consumer brands, had just received seed funding and was contemplating a second year of growth. The new year brought many challenges, as founder Jenny Gyllander... View Details
Keywords: Influencer Marketing; Monetization; Female Ceo; Female Entrepreneur; Female Protagonist; Influencers; Influencer; Direct-to-consumer; Marketing; Brands and Branding; Marketing Strategy; Venture Capital; Entrepreneurship; Marketing Communications; Consumer Products Industry; Financial Services Industry; Advertising Industry; London; United Kingdom; United States; Europe; North America
Israeli, Ayelet, and Jill Avery. "Thingtesting: Launching a Brand Discovery and Testing Digital Community." Harvard Business School Case 520-086, March 2020.
- 03 Mar 2008
- Working Paper Summaries
Testing a Purportedly More Learnable Auction Mechanism
- 2009
- Other Book
A Test of a Company's Business Model
By: Kenneth A. Merchant and Tatiana Sandino
Merchant, Kenneth A., and Tatiana Sandino. A Test of a Company's Business Model. Chartered Institute of Management Accountants, 2009.
- Research Summary
Portfolio Betas Do Not Make for Better Asset Pricing Tests
Many papers claim that because using portfolios instead of individual stocks as test assets minimizes idiosyncratic volatility, their use also yields more precise estimates of risk premia. I show that while portfolio formation does lead to more efficient beta... View Details
- September–October 2021
- Article
Internalization of Advertising Services: Testing a Theory of the Firm
By: Alvin J. Silk, Birger Wernerfelt and Shuyi Yu
In 1956, a group of trade associations representing publishers and independent advertising agencies signed a consent decree aimed at ending a set of trade practices that for half a century effectively precluded advertisers from owning and operating in-house agencies.... View Details
Keywords: Internationalization; Specialization; Theory Of The Firm; Advertising Agencies; Advertising; Organizational Structure; Theory
Silk, Alvin J., Birger Wernerfelt, and Shuyi Yu. "Internalization of Advertising Services: Testing a Theory of the Firm." Marketing Science 40, no. 5 (September–October 2021): 946–963.
- 2019
- Article
Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading
By: Iavor I Bojinov and Neil Shephard
We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact randomization based p-values for testing causal... View Details
Bojinov, Iavor I., and Neil Shephard. "Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading." Journal of the American Statistical Association 114, no. 528 (2019): 1665–1682.
- June 23, 2021
- Article
Research: When A/B Testing Doesn't Tell You the Whole Story
By: Eva Ascarza
When it comes to churn prevention, marketers traditionally start by identifying which customers are most likely to churn, and then running A/B tests to determine whether a proposed retention intervention will be effective at retaining those high-risk customers. While... View Details
Keywords: Customer Retention; Churn; Targeting; Market Research; Marketing; Investment Return; Customers; Retention; Research
Ascarza, Eva. "Research: When A/B Testing Doesn't Tell You the Whole Story." Harvard Business Review Digital Articles (June 23, 2021).
- February 2008 (Revised August 2008)
- Case
EXACT Sciences Corp.: Commercializing a Diagnostic Test
This case addresses the challenges of commercializing molecular diagnostics. Along the way, it explains the technology, payment system, and the measures used to assess the value of a diagnostic test. View Details
Keywords: Health Testing and Trials; Genetics; Science-Based Business; Commercialization; Biotechnology Industry
Herzlinger, Regina E. "EXACT Sciences Corp.: Commercializing a Diagnostic Test." Harvard Business School Case 308-090, February 2008. (Revised August 2008.)
- 2021
- Working Paper
Pandemic Schooling Mode and Student Test Scores: Evidence from U.S. States
By: Clare Halloran, Rebecca Jack, James C. Okun and Emily Oster
We estimate the impact of district-level schooling mode (in-person versus hybrid or distance learning) on test scores. We combine Spring 2021 state standardized test score data with comprehensive data on schooling in the 2020-21 school year across 12 states. We find... View Details
Keywords: COVID-19 Pandemic; In-person Schooling; Distance Learning; Outcomes Measurement; Health Pandemics; Education; Performance Evaluation
Halloran, Clare, Rebecca Jack, James C. Okun, and Emily Oster. "Pandemic Schooling Mode and Student Test Scores: Evidence from U.S. States." NBER Working Paper Series, No. 29497, November 2021.
- September 16, 2022
- Article
A Causal Test of the Strength of Weak Ties
By: Karthik Rajkumar, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson and Sinan Aral
The authors analyzed data from multiple large-scale randomized experiments on LinkedIn’s People You May Know algorithm, which recommends new connections to LinkedIn members, to test the extent to which weak ties increased job mobility in the world’s largest... View Details
Rajkumar, Karthik, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson, and Sinan Aral. "A Causal Test of the Strength of Weak Ties." Science 377, no. 6612 (September 16, 2022).
- July – August 1996
- Article
Manage Marketing by the Customer Equity Test
By: Robert C. Blattberg and J. A. Deighton
Blattberg, Robert C., and J. A. Deighton. "Manage Marketing by the Customer Equity Test." Harvard Business Review 74, no. 4 (July–August 1996): 136–144.
- Response
Kiva as a Test of Our 'Societal Creativity'
Response to "Kiva and the Birth of Person-to-Person Microfinance" by Matt Flannery (Innovations case discussion) View Details
Austin, Robert D. "Kiva as a Test of Our 'Societal Creativity'." Innovations: Technology, Governance, Globalization 2, nos. 1/2 (Winter–Spring 2007): 57–62.
- Article
Organization Transformation as Punctuated Equilibrium: An Empirical Test
By: Michael Tushman and E. Romanelli
Tushman, Michael, and E. Romanelli. "Organization Transformation as Punctuated Equilibrium: An Empirical Test." Academy of Management Journal 37, no. 5 (October 1994): 1141–1166.
- January 1984 (Revised January 1989)
- Teaching Note
Teradyne, Inc.--1979: Semiconductor Test Division (A), Teaching Note
Teaching Note for (9-581-023). View Details
Keywords: Semiconductor Industry
- 1972
- Chapter
The Capital Asset Pricing Model: Some Empirical Tests
By: Fischer Black, Michael C. Jensen and Myron Scholes
Black, Fischer, Michael C. Jensen, and Myron Scholes. "The Capital Asset Pricing Model: Some Empirical Tests." In Studies in the Theory of Capital Markets, edited by M. C. Jensen. New York: Praeger, 1972.
- October 6, 2020
- Article
Test Your Board's Readiness for the Post-COVID Era
By: Lynn S. Paine
Research suggests that well-run boards take the process of self-evaluation quite seriously, often using a combination of director surveys and personal interviews to assess the functioning and effectiveness of the board, its committees, and its individual members. As... View Details
Paine, Lynn S. "Test Your Board's Readiness for the Post-COVID Era." Harvard Business Review Digital Articles (October 6, 2020).
- 2003
- Other Unpublished Work
Testing Savings Product Innovations Using an Experimental Methodology
By: Nava Ashraf, Dean Karlan and Wesley Yin
Ashraf, Nava, Dean Karlan, and Wesley Yin. "Testing Savings Product Innovations Using an Experimental Methodology." ERD Technical Note, November 2003.
- January 2004
- Article
Corporate Venturing: The Origins of Unilever's Pregnancy Test
By: Geoffrey Jones and Alison Kraft
The relative ability of different sizes of firm and organisational designs to develop and sustain dynamic capabilities in innovation and create new businesses remains a matter of contention. While Chandler among many others has emphasised the pre-eminent role of large... View Details
Keywords: Business Ventures; Organizational Design; Technological Innovation; Business Startups; Venture Capital; Brands and Branding; Multinational Firms and Management; Product Development; Product Launch; Corporate Entrepreneurship; Great Britain
Jones, Geoffrey, and Alison Kraft. "Corporate Venturing: The Origins of Unilever's Pregnancy Test." Business History 46, no. 1 (January 2004): 100–122.
- 2018
- Working Paper
Detecting Anomalies: The Relevance and Power of Standard Asset Pricing Tests
By: Malcolm Baker, Patrick Luo and Ryan Taliaferro
The two standard approaches for identifying capital market anomalies are cross-sectional coefficient tests, in the spirit of Fama and MacBeth (1973), and time-series intercept tests, in the spirit of Jensen (1968). A new signal can pass the first test, which we label a... View Details
Keywords: Investment Management; Anomalies; Portfolio Construction; Transaction Costs; Investment; Management; Asset Pricing; Market Transactions; Cost
Baker, Malcolm, Patrick Luo, and Ryan Taliaferro. "Detecting Anomalies: The Relevance and Power of Standard Asset Pricing Tests." Working Paper, July 2018.
- Article
Design and Testing of a Mobile Health Application Rating Tool
By: David Levine, Zo Co, Lisa Newmark, Alissa Groisser, A Jay Holmgren, Jennifer Haas and David Bates
Mobile health applications (“apps”) have rapidly proliferated, yet their ability to improve outcomes for patients remains unclear. A validated tool that addresses apps’ potentially important dimensions has not been available to patients and clinicians. The objective of... View Details
Levine, David, Zo Co, Lisa Newmark, Alissa Groisser, A Jay Holmgren, Jennifer Haas, and David Bates. "Design and Testing of a Mobile Health Application Rating Tool." Art. 74. npj Digital Medicine 3 (2020).