Publications

February 2008 (Revised August 2008)
Case

EXACT Sciences Corp.: Commercializing a Diagnostic Test

By: Regina E. Herzlinger

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

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

Keywords: Causality; Nonparametric; Potential Outcomes; Trading Costs; Mathematical Methods

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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

Keywords: Job Mobility; Social Networks; Social Ties; Networks; Personal Development and Career

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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

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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

Purchase

03 Sep 2014
News

How to Market Test a New Idea

Keywords: market research; product launch

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

The strength of weak ties is an influential social-scientific theory that stresses the importance of weak associations (e.g., acquaintance versus close friendship) in influencing the transmission of information through social networks. However, causal tests of... View Details

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

Article

Organization Transformation as Punctuated Equilibrium: An Empirical Test

By: Michael Tushman and E. Romanelli

Keywords: Organizations; Transformation; Information

January 1984 (Revised January 1989)
Teaching Note

Teradyne, Inc.--1979: Semiconductor Test Division (A), Teaching Note

By: Benson P. Shapiro

Teaching Note for (9-581-023). View Details

Keywords: Semiconductor Industry

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.... View Details

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

Keywords: Risk Aversion; Risk; International Investing; International Finance; Risk and Uncertainty; Asset Pricing; Financial Markets; Investment; Behavioral Finance; Volatility

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

Keywords: Health; Mobile Technology; Design; Analysis

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

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... View Details

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

Keywords: Perception; Valuation; Goods and Commodities; Attitudes