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Show Results For
- All HBS Web
(3,381)
- People (9)
- News (696)
- Research (2,163)
- Events (34)
- Multimedia (26)
- Faculty Publications (1,256)
- 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).
- 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).
- Article
Money is No Object: Testing The Endowment Effect in Exchange Goods
By: Dan Svirsky
We present a new experimental design to test whether the endowment effect exists for exchange goods, like money. We compare three groups to a baseline: one endowed with money, one endowed with chocolate coins, and one endowed with chocolate coins described as "tokens."... View Details
Svirsky, Dan. "Money is No Object: Testing The Endowment Effect in Exchange Goods." Journal of Economic Behavior & Organization 106 (October 2014): 227–234.
- 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.
- 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.
- 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).
- September 2012 (Revised December 2013)
- Supplement
Intel: Strategic Decisions in Locating a New Assembly and Test Plant (B)
By: Juan Alcacer and Kerry Herman
In February 2006, Intel has selected the location for its new assembly and test plant. This case discusses why this location was chosen from the list of possibilities introduced in "Intel: Strategic Decisions in Locating a New Assembly and Test Plant (A)." View Details
Keywords: Location Choices; Location Strategies; Strategy; Geographic Location; Global Strategy; Technology; Technology Industry; United States; Viet Nam
Alcacer, Juan, and Kerry Herman. "Intel: Strategic Decisions in Locating a New Assembly and Test Plant (B)." Harvard Business School Supplement 713-419, September 2012. (Revised December 2013.)
- 1987
- Working Paper
Tests of Excess Forecast Volatility in the Foreign Exchange and Stock Markets
By: K. A. Froot
Simple regression tests that have power against the alternatives that asset prices and expected future asset returns are excessively volatile are developed and performed for the foreign exchange and stock markets. These tests have a number of advantages over... View Details
- January 2022
- Case
Steem versus Hive: Testing Blockchain Governance
By: Shikhar Ghosh and Shweta Bagai
Keywords: Blockchain
- June 2017
- Case
Theranos: Small Volume Blood Testing (A)
By: John A. Quelch and Irene Lu
Quelch, John A., and Irene Lu. "Theranos: Small Volume Blood Testing (A)." Harvard Business School Case 517-127, June 2017.
- September 2015 (Revised May 2017)
- Case
Merieux NutriSciences: Marketing Food Safety Testing
By: John A. Quelch and Margaret L. Rodriguez
Quelch, John A., and Margaret L. Rodriguez. "Merieux NutriSciences: Marketing Food Safety Testing." Harvard Business School Case 516-024, September 2015. (Revised May 2017.)
- August 1980 (Revised June 1983)
- Supplement
Teradyne, Inc.--1979: Semiconductor Test Division (B)
Supplements the (A) case. View Details
Keywords: Semiconductor Industry
Shapiro, Benson P. "Teradyne, Inc.--1979: Semiconductor Test Division (B)." Harvard Business School Supplement 581-024, August 1980. (Revised June 1983.)
- 16 Mar 2016
- Video
Testing Your Social Venture: Iterating Based on Market Feedback
- 29 Jan 2019
- News
Howard Schultz Is Just Testing The Waters, Expert Says
- 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.
- January 2004 (Revised June 2004)
- Case
Citigroup 2003: Testing the Limits of Convergence (A)
Examines Citigroup's strategic transition and highlights issues that its newly announced CEO Charles Prince will face as he assumes leadership of this global financial corporation upon the retirement of its charismatic CEO, Sandy Weill. View Details
Keywords: Business Model; Globalized Firms and Management; Management Succession; Transformation; Banks and Banking; Banking Industry; Financial Services Industry
Applegate, Lynda M. "Citigroup 2003: Testing the Limits of Convergence (A)." Harvard Business School Case 804-041, January 2004. (Revised June 2004.)
- 01 May 2020
- News
Use Tested Techniques To Help Optimize Your Performance
- September 2012 (Revised December 2013)
- Case
Intel: Strategic Decisions in Locating a New Assembly and Test Plant (A)
By: Juan Alcacer and Kerry Herman
In mid-2005, Intel is examining its options for where to locate its next assembly and test plant. On its short list of potential sites include locations in China, India, Thailand, and Vietnam. Each country has its own unique benefits and risks related to... View Details
Keywords: Strategic Positioning; Location Choices; Location Strategies; Technology; Geographic Location; Global Strategy; Information Technology; Strategy; Technology Industry; United States; China; India; Thailand; Viet Nam
Alcacer, Juan, and Kerry Herman. "Intel: Strategic Decisions in Locating a New Assembly and Test Plant (A)." Harvard Business School Case 713-406, September 2012. (Revised December 2013.)